The Best Diet To Lower Cholesterol: A Science-Based Complete Guide

Cholesterol is a big word that can cause confusion, but managing it can be much simpler than you think. This guide will explain everything you need to know, in plain language, to lower cholesterol through smart food choices.


  1. Short on Time? Lower Cholesterol with This Simple Food Guide
  2. Understanding Cholesterol: The Good, the Bad, and Your Heart
  3. Cholesterol’s Journey: How It Travels Through Your Blood
  4. Crafting the Best Diet to Lower Cholesterol

Short on Time? Lower Cholesterol with This Simple Food Guide

Cholesterol is a fatty substance that’s naturally present in our bodies and the food we eat. It plays a crucial role in keeping us healthy, but when levels get too high for too long, it can become a health concern.

This is because excess cholesterol can build up in artery walls, increasing the risk of heart disease.

The specific type of cholesterol that’s harmful is called LDL (low-density lipoprotein), and that’s the one we want to keep under control in our bloodstream.

What are the factors that cause our cholesterol blood levels to rise?

Of the total amount of cholesterol that circulates in your blood, only about 20% comes from the cholesterol contained in the foods you eat, and 80% is produced internally by your body [1].

However, this doesn’t mean what you eat isn’t important. On the contrary, your diet plays a fundamental role in determining how much cholesterol your body produces.

Here’s a quick and actionable guide to get you started with reducing cholesterol with diet.

Limit These Cholesterol Culprits

Fill Up on These Cholesterol-Fighting Powerhouses

  1. Fruits & Vegetables: Packed with antioxidants that shield LDL particles from damage.
  2. Fiber Powerhouse Trio: Fiber helps lower cholesterol production. Aim for 25-30 grams daily.
    • Oats: Enjoy oatmeal for breakfast with fruits, nuts, or seeds. Steel-cut or rolled oats offer the most fiber.
    • Barley: Swap rice for barley in dishes or use barley flour for baking. Choose dehulled barley for maximum benefit.
    • Legumes (Beans & Lentils): Include them in meals at least 3 times a week.
    • Learn more: 5 Amazing health benefits of fiber rich foods (
  3. Healthy Fats for the Win: Choose these for a heart-healthy profile.
    • Nuts & Nut Oils: Most nuts and seeds (walnuts, almonds, flaxseeds, sunflower seeds, pumpkin seeds) and their oils are heart-friendly. Enjoy a handful (20-30 grams) daily for a snack. Choose raw or dry-roasted options, without added salt.
    • Extra Virgin Olive Oil: Rich in phytosterols and antioxidants, it helps lower LDL and raise good HDL cholesterol.
    • Avocado: Another excellent source of healthy fats.
    • Learn more: Discover why healthy fats are great for your body (
  4. Omega-3 Power
    • Fatty Fish (1-2 servings weekly): Opt for salmon, anchovies, sardines, mackerel, or herring. They provide omega-3 fatty acids, which lower triglycerides and improve your omega-3/omega-6 balance for a healthier cholesterol profile.
    • Plant-based Sources: Flaxseeds, chia seeds, hemp seeds, and walnuts are excellent sources.
    • Learn more about Omega-3s (
  5. Bonus Cholesterol Fighters
    • Soy: Rich in lecithin and phytosterols, soy can help lower LDL cholesterol. Enjoy tempeh, natto, miso, tofu, or soy cheese.
    • Sesame Seeds: Sprinkle them on salads, bread, or crackers, or enjoy tahini (sesame seed paste) in sauces and dips.
    • Artichokes: Enjoy them steamed or boiled for a delicious way to potentially support healthy cholesterol levels.
    • Green Tea: Enjoy a cup daily for its antioxidant power and potential cholesterol-lowering properties.
    • Chickpeas: A double treat with soluble fiber and phytosterols, lowering cholesterol production and absorption. Enjoy hummus, soups, stews, falafel, or roasted chickpeas.

Learn more:

Eggs And Cholesterol: Busted Myth

Eggs are a good source of protein and don’t significantly raise cholesterol [3]. They even contain lecithin, which can help balance cholesterol levels [4]. Focus on reducing saturated and trans fats instead.

This guide provides a foundation for managing cholesterol through your diet. Scientific evidence and the latest findings on cholesterol support these recommendations.

Keep reading to explore the science behind these choices and understand how these foods can influence the amount of cholesterol circulating in your blood.

Understanding Cholesterol: The Good, the Bad, and Your Heart

Understanding Cholesterol

Cholesterol 101: What It Is and Why It Matters

We’ve all heard of cholesterol, but what exactly is it? Cholesterol is a fatty substance found in our bodies and the food we eat. Unlike other fats (like triglycerides), cholesterol is unique and only produced by animal cells.

This means animal products like meat and dairy contain cholesterol, while plants do not.

The Vital Roles of Cholesterol in Your Body

While cholesterol isn’t used for energy like other fats, it plays a surprisingly important role in keeping us healthy. Here are four key jobs cholesterol does in our body:

1. Building Strong Cells

Cholesterol acts like a building block for our cells, giving them structure and strength. It’s especially important for our cell membranes and the sheath that protects our nerves.

2. Digestive Powerhouse

Cholesterol is a key ingredient in bile salts, which help our body break down fats during digestion.

3. Vitamin D Production

Vitamin D, essential for bone health and countless other functions, is hard to get enough of from food alone. Luckily, our bodies can make it with the help of cholesterol and some sunshine!

4. Hormone Factory

Cholesterol is a building block for many hormones in our body, including sex hormones like testosterone and estrogen, and stress hormones like cortisol.

Cholesterol on the Move: Understanding Cholesterolemia

We’ve learned that cholesterol has important jobs inside our cells. But how does it get there? It travels through the bloodstream, and the amount of cholesterol circulating in your blood is called cholesterolemia.

Here’s a simplified look at cholesterol’s journey:

  • From the Intestine to the Liver: Cholesterol enters your bloodstream from your intestines
  • Liver Makes the Delivery: Your liver packages cholesterol for transport throughout your body to the cells of all the various tissues that need it, where it is absolutely essential for our survival

Too Much of a Good Thing: Cholesterol and Heart Health

Normally, cholesterol travels through your blood safely. But when there’s too much of it circulating for a long time, it can become a problem. Here’s why:

  • High Cholesterol, Clogged Arteries: Over time, excess cholesterol can build up in your arteries, forming plaque. Imagine plaque like sticky gunk lining the pipes in your house.
  • Increased Heart Disease Risk: This plaque buildup narrows the arteries, making it harder for blood to flow freely. This raises your risk of heart attack and stroke, which are serious cardiovascular diseases.

High cholesterol itself isn’t a disease, but it can increase your chances of developing heart problems.

What Raises Your Cholesterol? Here’s the Surprise

For many years, people thought eating too much cholesterol-rich food (like eggs) automatically caused high cholesterol.

But here’s the surprising truth: for most people, dietary cholesterol doesn’t significantly impact blood cholesterol levels [1].

Our bodies are pretty smart, when we eat cholesterol, our bodies naturally adjust by producing less cholesterol on their own. This keeps things balanced.

However, there’s a catch. A small percentage of people have genes that make them more sensitive to dietary cholesterol. For them, limiting cholesterol intake can be more important.

Friend or Foe? Understanding Dietary vs. Body-Produced Cholesterol

We now know that dietary cholesterol has a smaller impact on blood cholesterol than previously thought. So, where does most of our blood cholesterol come from?

Our Body Makes Most of It: Our liver is the main producer of cholesterol in the body, churning out about 80% of what circulates in our blood [1].

Diet Still Matters: Even though cholesterol in food contributes less directly (around 20%), what we eat plays a key role. In fact, your liver can use sugars and fats from your diet to create cholesterol [5].

Think of it like a factory:

  • Raw Materials: The liver uses sugars and fats as building blocks to make cholesterol.
  • Production Control: An enzyme called HMG-CoA reductase acts like a factory switch, controlling how much cholesterol your liver produces. Certain dietary components can turn this switch down, reducing cholesterol production (like some fibers). Also cholesterol-lowering medications like statins work by blocking this enzyme, reducing cholesterol production. 

Winning the Cholesterol Battle: How Diet and Lifestyle Can Help

We’ve learned that high cholesterol can be caused by several factors. Here’s how to take charge:

  1. Swap the Unhealthy Fats: Avoid trans fats and limit saturated fats found in processed foods and fatty animal foods. These can increase cholesterol production in your liver.
  2. Sugar Spikes: When you eat too much added sugar and refined grains like white bread, your blood sugar levels rise. This triggers your body to make more cholesterol. Focus on whole grains and limit refined carbs, sugary drinks and desserts.
  3. Stress Less, Live More: Chronic stress can raise cholesterol levels. Find healthy ways to manage stress, like exercise, relaxation techniques, or spending time in nature [6].

Do We Need Cholesterol in Our Diet?

Unlike some vitamins, your body doesn’t require a specific amount of cholesterol from food. We can make our own cholesterol from fats and sugars. So, while dietary cholesterol can contribute to your overall cholesterol levels, it’s not essential to get it from food.

Cholesterol’s Journey: How It Travels Through Your Blood

How Cholesterol Travels Through Your Blood

We know cholesterol needs to travel in your blood, but it can’t do it alone. Cholesterol is like oil, and oil doesn’t mix with water (blood).

Here’s the trick: Cholesterol hitches a ride in special carriers called lipoproteins. Think of them like tiny taxis!

  • Inside the Taxi: These carriers have a space inside to hold cholesterol and other fats.
  • Outside the Taxi: The outside of the carrier is like a special coating that allows it to blend in with the watery environment of your blood.

With these taxis, cholesterol can safely travel through your bloodstream and reach the cells that need it.

Chylomicrons: The First Step in Cholesterol Transport

After we eat, fats from our food (including cholesterol) need a ride throughout the body to the liver. Chylomicrons are like the first big delivery trucks that carry these fats, especially triglycerides, from the intestines.

  • Big and Fatty: Chylomicrons are large because they hold a lot of fat.
  • Taking the Long Way: They can’t travel directly to the liver, so they take a longer route through the bloodstream.
  • Dropping Off Along the Way: During their journey, chylomicrons release triglycerides to muscle cells for energy and fat storage cells for later use.

By the time they reach the liver, chylomicrons are mostly out of triglycerides but still carry cholesterol.

The Liver’s Role: Manufacturing Lipoproteins for Cholesterol Transport

The liver receives chylomicrons, breaks them down, and uses the leftover cholesterol. It can:

  • Store cholesterol for its own use or to make bile (a digestive aid).
  • Get rid of excess cholesterol through bile excretion.
  • Send cholesterol back into the bloodstream for other cells to use.

To do this, the liver manufactures its own delivery trucks called VLDLs (very low density lipoproteins). Compared to chylomicrons, VLDLs:

  • Carry less fat (triglycerides) because some have already been delivered.
  • Carry more cholesterol, including cholesterol the liver makes itself.

From VLDL to LDL (Low Density Lipoproteins): How Your Body Converts Cholesterol Carriers

Those VLDL delivery trucks also travel through your blood. As they drop off triglycerides to cells, they change shape:

  • Losing Fat, Gaining Cholesterol (in Percentage): They release triglycerides, becoming smaller and denser with more cholesterol in proportion.
  • IDL (Intermediate-Density Lipoproteins) Stage: At this intermediate stage, they’re called IDL particles.
  • Becoming LDL (Low-Density Lipoprotein) Taxis: IDL particles transform into LDL, the main cholesterol carriers in your blood. These LDLs are like smaller, more efficient taxis that deliver cholesterol directly to cells for various uses.

Unlike the chylomicron and VLDL “delivery trucks” that drop off triglycerides on the go, LDLs “taxis” act more like exclusive shuttles for cholesterol. Here’s the difference:

  • Chylomicrons & VLDLs: Release triglycerides to cells throughout the body but stay in circulation.
  • LDLs: Attach to specific spots on cells, get engulfed by the cell, and release their cholesterol inside. The LDL itself disappears.

This way, LDLs deliver cholesterol directly to cells that need it for various functions.

The Trouble with LDL: Why High Levels Can Be Harmful

Normally, LDLs deliver cholesterol to cells that need it. But here’s the problem:

  • Cells Don’t Always Need More: If your cells already have enough cholesterol, they won’t take up any more LDL particles from your blood.
  • LDL Can Linger: When LDLs aren’t taken up by cells, they stay circulating in your bloodstream.

This can be an issue because over time, high levels of LDL cholesterol can contribute to the buildup of plaque in your arteries.

Oxidation: How LDL Can Damage Your Arteries

When LDL particles linger too long in your bloodstream, they can become damaged:

  • Like Rust on a Car: Over time, these “taxi” cars can develop “rust” (oxidation) that makes them less recognizable to healthy cells.
  • False Alarms for Immune System Cells: Damaged LDLs can attract certain immune system cells (macrophages) that are supposed to clean up debris. These macrophages gobble up the damaged LDL, forming “foam cells” that contribute to plaque buildup in arteries.

Antioxidants to the Rescue: Antioxidants in your diet can help prevent this damaging oxidation of LDL particles, keeping them healthy and less likely to cause problems.

Small LDL Particles: A Different Kind of Risk

Not all LDL particles are created equal. There’s a type of LDL that’s smaller and denser, and it can be more dangerous.

  • Smaller and Slinkier: These small LDL particles are like smaller, greasier cars that can squeeze through tight spaces in your arteries.
  • Easier to Damage: They’re also more prone to damage (oxidation) in your bloodstream.
  • Double Trouble: This damage makes them even harder for your body to remove and easier for them to get lodged in artery walls.

People with high levels of these small LDL particles have a higher risk of heart disease, even if their overall cholesterol levels are normal.

The reasons why some people have more small LDL particles are complex and not fully understood. Here are some possible factors:

  • Genetics: You might be predisposed to them.
  • Triglycerides: High triglyceride levels in your blood might be linked to smaller LDLs.
  • Insulin Resistance: This condition might also play a role, but the exact connection is unclear.

Unfortunately, regular cholesterol tests don’t tell you the size of your LDL particles. Ideally, you’d want large LDL particles, but the test only measures the total LDL cholesterol amount.

There is a more complex test to measure LDL particle number, but there’s a simpler option: measuring apoB protein.

  • Each LDL has one apoB protein.
  • More small LDL particles = more apoB protein.

So, a higher ratio of apoB to LDL cholesterol suggests more small LDL particles, which might be a concern.

Learn more:

LDL Regulation: How Your Body Balances Cholesterol Needs

We learned that ideally, LDL gets taken up quickly by cells that need cholesterol. But how does this work?

  • Cells Control the Door: Cells have receptors like doorways for LDL.
  • Cells Say No When Full: If a cell has enough cholesterol, it reduces these receptors, like closing the door to say “no thanks” to more LDL.
  • The Downside: This can leave LDL particles lingering in the bloodstream, potentially causing problems.

Here’s the good news:

  • Cells Say Yes When Needed: When a cell needs cholesterol, it increases its LDL receptors, like opening the door to take in more.

But there’s another option:

  • Do-It-Yourself Cholesterol: All our cells can actually make their own cholesterol if needed.

This creates a balancing act. While cells can regulate LDL uptake, high LDL lingering in the blood can still be a risk factor.

What You Eat Matters: How Diet Affects Your Cholesterol

We learned that cells can either take in LDL cholesterol or make their own. Here’s how your diet affects this balance:

  • Unhealthy Fats and Sugars: These can trigger your cells to make more cholesterol and also reduce their need to take up LDL from your blood. This can lead to higher LDL levels circulating, potentially causing problems.
  • Healthy Diet: Eating a diet low in unhealthy fats, sugars, and processed foods, and rich in soluble fiber can help in two ways:
    • It reduces the signal for your cells to make their own cholesterol.
    • It encourages your cells to increase LDL receptors, helping to remove LDL from your bloodstream.

High Density Lipoprotein (HDL): The Good Cholesterol

HDL is the last type of lipoprotein we’ll discuss, and it’s often called “good cholesterol” for a reason. Here’s what it does:

  • HDL as Garbage Trucks: Imagine HDL particles as tiny garbage trucks specifically for cholesterol.
  • Picking Up Extras: They travel through your blood, picking up excess cholesterol from cells and especially from those “foam cells” in artery walls that can cause problems.
  • Taking Out the Trash: HDL brings the collected cholesterol back to the liver for disposal.

More than just cleaning up. Besides being cholesterol scavengers, HDLs also have other benefits:

  • Reduces Inflammation: They have anti-inflammatory properties.
  • Relaxes Blood Vessels: They help keep your blood vessels flexible.
  • Reduces Blood Clot Risk: They play a role in preventing blood clots.
  • Protects Against Oxidation: They carry antioxidants that help prevent LDL damage.

Because of these helpful actions, HDL is considered the “good” cholesterol. The higher your HDL level, the better it is for your cardiovascular health.

LDL vs. HDL: The Good, the Bad, and the Simple Breakdown

We’ve learned about two key cholesterol carriers: LDL and HDL. Here’s a simple breakdown:

  • LDL (often called “bad cholesterol”) can linger in your bloodstream and potentially cause problems if levels are high. It’s like mini taxis that might leave too much cholesterol around.
  • HDL (often called “good cholesterol”) acts like a cleanup crew, picking up excess cholesterol and taking it back to the liver for disposal.

It’s All About the Delivery.

There’s only one type of cholesterol, but the type of lipoprotein carrying it makes a big difference. LDL tends to leave cholesterol behind, while HDL helps remove it.

Blood tests can’t tell the whole story, but they measure your total cholesterol and how much is carried by LDL and HDL. This helps doctors assess your risk for heart disease.

Making Sense of Your Cholesterol Blood Test Results

Blood tests measure your total cholesterol and how much is carried by LDL (“bad”) and HDL (“good”) cholesterol. Here’s what to consider:

  • Don’t Just Look at One Number: HDL removes cholesterol, while LDL can leave it behind. We focus on the balance between them.
  • The Ratio Matters More Than Individual Numbers:
    • A good rule of thumb is for HDL to be at least a third of LDL.
    • This means HDL can effectively remove excess cholesterol carried by LDL.
  • Low HDL is a Concern: Even if your total cholesterol is within range, a low HDL level can be a worry. It means there aren’t enough “cleanup trucks” to remove excess cholesterol.
  • Different Ratio Calculations: Doctors might use slightly different ratios (LDL/HDL, triglycerides/HDL, or total cholesterol/HDL) to assess your risk.

Learn more:

Cholesterol Delivery in Your Body: A Quick Recap

  • Lipoproteins are the riders that transport and deliver lipids to the various recipients of our body.
  • Chylomicrons and VLDL mainly deliver triglycerides to cells, the former traveling from the intestine to the liver, and the latter from the liver to the periphery.
  • LDL, on the other hand, mainly delivers cholesterol to cells, although in this case the cells take in not only the cargo but also the rider. LDL particles sometimes cannot find the address, so they keep circulating until they become damaged, drop their cargo (cholesterol), and stop in the middle of the road, which would be the wall of our arteries.
  • Fortunately, there are also HDLs, which are more like scavengers sent out by the liver to recover excess or damaged cholesterol left on the arteries and bring it back to be disposed of with bile.

Optimizing Your Heart Health: Key Cholesterol Goals

Here’s a quick rundown of the key strategies to keep your heart healthy by managing cholesterol:

1. Keep Your Overall Cholesterol in Check: This means preventing your total cholesterol levels from getting too high.

2. Clear Out LDL Quickly: LDL, or “bad cholesterol,” can linger in your bloodstream and cause problems. We want to promote its removal.

Here’s a two-pronged approach for managing LDL:

  • Boost HDL (“Good Cholesterol”): HDL helps remove excess LDL by transporting it back to the liver for disposal. So, higher HDL levels are beneficial.
  • Reduce LDL Production: This can be achieved by lowering your body’s natural cholesterol production in the liver and cells.

3. Maintain a Healthy Balance:

  • Allow Some LDL for Cell Function: A small amount of LDL is necessary for your cells to function properly. We don’t want to completely eliminate it.
  • Prevent LDL Oxidation: When LDL gets damaged (oxidized), it becomes harmful and can form plaque in your arteries.

4. Promote Good Particle Types:

  • Avoid Small, Dense LDL: This type of LDL is more likely to cause problems.
  • Maintain Functional HDL: Not all HDL is created equal. We want the type that effectively removes cholesterol.

The good news: Diet plays a significant role in achieving all of these goals! By following a heart-healthy diet, you can significantly improve your cholesterol profile and reduce your risk of heart disease.

Crafting the Best Diet to Lower Cholesterol

There can be some confusion about how diet affects cholesterol. Here’s what you need to know:

How To Lower Cholesterol With Diet
  • Dietary Cholesterol and Blood Cholesterol: While the cholesterol you eat directly contributes about 20% to your blood cholesterol levels, your overall diet has a much bigger impact.
  • Diet’s Big Influence: What you eat plays a major role in how much cholesterol your liver produces. This, in turn, significantly affects your overall blood cholesterol levels.

The food choices you make can greatly influence how much cholesterol your body makes, impacting your total cholesterol levels more than just the cholesterol you consume directly.

Smart Eating for Healthy Cholesterol

There’s no need for a drastic change! Most recommendations for healthy cholesterol levels align with a generally balanced diet that promotes overall health. Here’s what to focus on:


Focus on These Powerhouse Foods:

  • Fruits and Vegetables: They’re packed with antioxidants that can protect LDL particles from damage.
  • Fiber: Fiber helps lower cholesterol production.
  • Omega-3 Fatty Acids: Aim for a balance between omega-3 and omega-6 fatty acids in your diet. Omega-3s are found in fatty fish, flaxseeds, chia seeds, hemp seeds, and walnuts .
  • Healthy Fats: Choose healthy fats like those found in nuts, seeds, olive oil, and avocados.

These dietary tips promote overall health and can help prevent high cholesterol, along with other chronic diseases.

Learn more:

Effective Eating Strategies To Lower Cholesterol With Diet

These strategies, complementary to the recommendations above, focus on actively lowering existing high cholesterol levels through diet. They’re suitable for people who want to manage cholesterol naturally.

The ultimate aim is to manage cholesterol through a healthy diet, potentially reducing or eliminating the need for medication. This should be done gradually and under the supervision of a healthcare professional.

Important Considerations:

  • Medication and Diet: If you’re already on medication, consult your doctor before making dietary changes. They can adjust your medication as needed to avoid lowering cholesterol too much.
  • Gradual Progress is Key: Lowering cholesterol takes time (at least 2 months) for your body to adjust. Don’t expect immediate results from dietary changes.
  • Doctor or Nutritionist Support: Consider consulting a doctor or nutritionist for personalized guidance on creating a safe and effective cholesterol-lowering diet.

Reducing Cholesterol Absorption

While dietary cholesterol itself isn’t a major concern, your body also absorbs cholesterol released into your gut by the liver. Here’s how diet can help:

  • Limit Bile Salt Re-absorption: Certain foods can help prevent the re-absorption of bile salts, forcing your liver to produce new ones, which in turn uses up cholesterol, lowering blood levels, similarly to bile acid sequestrants and fibrate medications.

Making Smart Choices About Dietary Cholesterol

  • Focus on Overall Diet: For most people, the amount of cholesterol in your food isn’t the biggest factor. However, for people with a specific genetic variation (apoE4), it can be more impactful.
  • Plateau of Absorption: There’s a limit to how much cholesterol your body can absorb at once (around 500mg). Eating more than that won’t significantly increase absorption. This doesn’t mean you should indulge in cholesterol-rich foods, but it suggests that if you enjoy cholesterol-rich foods, it’s better to have them all at once rather than spread out in small portions (for people with high cholesterol, not everyone).

Promoting Cholesterol Removal

  • Increase Bile Production: Certain foods, like artichokes, can stimulate bile production, which helps eliminate excess cholesterol from the liver.

Expediting LDL Removal: Strategies to Lower LDL Quickly

Here are two ways your diet can help remove LDL (“bad cholesterol”) more efficiently:

  1. Improve Your HDL/LDL Ratio: A higher HDL (“good cholesterol”) to LDL ratio means your body can remove more LDL from your bloodstream. Certain foods can help improve this ratio, but overall, a balanced diet is key.
    • Avoid Trans Fats and Limit Saturated Fats: These worsen the HDL/LDL ratio.
    • Balance Omega-3 and Omega-6 Fatty Acids: Aim for a good balance of these fats.
    • Include Monounsaturated Fats: Choose healthy fats, especially those that benefit the HDL/LDL ratio.
  2. Increase LDL Receptor Expression: Your cells have receptors that grab LDL particles from the bloodstream. When cholesterol production is low, your body increases these receptors to remove more LDL. The dietary strategies for this are the same as those mentioned in point 1 above (limiting saturated fats, etc.).

In simpler terms: Eat a balanced diet that’s low in unhealthy fats and includes healthy fats. This can help your body remove LDL cholesterol more effectively.

Keeping Your Cholesterol Transport System Healthy

We learned that damaged cholesterol particles can cause problems. Here’s how your diet can help keep your transport system functioning smoothly:

  • Prevent LDL Oxidation: Oxidation makes LDL particles unrecognizable by their receptors, leading to artery damage.
    • Include Antioxidants: Eat plenty of fruits and vegetables for antioxidants like vitamin C and polyphenols.
    • Choose Healthy Fats: Nuts, seeds, olive oil, and leafy greens provide vitamin E, another antioxidant.
  • Maintain Healthy LDL Size: Small, dense LDL particles are more likely to cause issues.
    • Control Triglycerides: Avoid large, fatty meals that can cause high triglyceride levels, linked to smaller LDL particles.
  • Promote Functional HDL: Aim to improve your HDL/LDL ratio through diet. While some foods can boost good HDL, some medications might increase a less effective type of HDL [7].

In essence: Focus on a balanced diet rich in fruits, vegetables, healthy fats, and whole grains. This can help protect your cholesterol transport system and promote overall heart health.

Therapeutic Approach: Diet To Reduce Cholesterol

As for those who already have high cholesterol problems, we can take full advantage of the strategies above, not only the tips to prevent new cholesterol production but also those to actively promote its excretion. So, let’s pull out a few more specific weapons.

Dietary Fiber: A Powerful Tool for Lowering Cholesterol

If you already have high cholesterol, dietary fiber becomes an even more crucial ally. Aim for 25-30 grams of total fiber (both soluble and insoluble) daily to reap these benefits:

  • Reduced Cholesterol Production: Fiber fermentation in your gut produces short-chain fatty acids that signal your liver to produce less cholesterol.
  • Controlled Blood Sugar: Fiber slows down sugar absorption, preventing spikes that can trigger cholesterol synthesis.
  • Lower Cholesterol Absorption: Fiber helps reduce how much cholesterol your intestines absorb.

Learn more:

Beta-Glucans: The Champion Fiber

A specific type of soluble fiber called beta-glucan is particularly effective in lowering cholesterol. Here are some excellent sources of beta-glucan:

  • Oats: Aim for at least 4 servings a week. Enjoy them for breakfast with fruit and nuts, or add them to baked goods for a fiber boost.
  • Barley: Include barley in your diet at least once a week. It’s a great substitute for rice and adds a nutty flavor to soups, stews, and even baked goods (like barley flour bread).
  • Eggplant: Enjoy this versatile vegetable at least once a week. Try it roasted, grilled, or stewed for a flavorful and fiber-rich addition to your meals.
  • Legumes (beans, lentils, etc.): Include them in your meals at least 3 times a week. Explore the variety of beans, lentils, and peas in soups, stews, salads, or dips.

Oatmeal: A Heart-Healthy Choice

Oatmeal is a great cholesterol-fighting breakfast option due to its soluble fiber content, beta-glucan. Here’s a breakdown of oat varieties:

  • Best Choices: Steel-cut oats and rolled oats (regular oats) cook longer but offer the most benefits. They’re perfect for porridge or adding to soups and stews.
  • Acceptable Choices: Quick oats cook faster and can be used in cold dishes like yogurt parfaits with fruit. However, they may have a slightly higher glycemic index.
  • Least Ideal: Oat milk is often filtered, removing much of the beneficial fiber.

Tips for Including Oatmeal in Your Diet:

  • Enjoy cooked oatmeal for breakfast with toppings like fruits, nuts, or seeds.
  • Add rolled oats to baked goods like bread or muffins for a fiber boost.
  • Use quick oats in overnight oats or no-cook breakfasts.

Barley: Another Cholesterol-Fighting Champion

Barley is another excellent grain for managing cholesterol due to its beta-glucan content. Here’s how to incorporate it into your diet:

  • Swapping Out Rice: Use barley instead of rice in most dishes for a heart-healthy alternative.
  • Choosing the Right Type: Opt for dehulled barley, which keeps most of the fiber, over pearled barley that’s more refined. You can also find broken barley or barley flakes for faster cooking.
  • Barley Flour: Similar to oats, whole-wheat barley flour can be used for baking and adds a nutty flavor.

Eggplants: A Delicious Way to Lower Cholesterol

Eggplants are a tasty and heart-healthy addition to your diet. They contain soluble fiber, which can help lower cholesterol. Here are some healthy ways to prepare eggplants:

  • Baba Ganoush: This delicious roasted eggplant dip is a flavorful and nutritious appetizer.
  • Baked or Grilled Eggplant: Enjoy eggplant as a side dish or incorporate it into vegetarian main courses.
  • Stews and Sauces: Add diced eggplant to stews, tomato sauces, or curries for extra flavor and fiber.

Skip the Frying: While eggplant is versatile, avoid frying methods to maximize its health benefits. Opt for baking, grilling, or stewing for a tastier and cholesterol-friendly approach.

Natural Cholesterol Fighters: Lecithin and Phytosterols

Beyond fiber, two other natural substances can help manage cholesterol:

  • Lecithin – This phospholipid found in various foods can help with cholesterol in two ways:
    • Lowering Total Cholesterol: Lecithin may contribute to lower overall cholesterol levels.
    • Improving HDL/LDL Ratio: Lecithin may help increase “good” HDL cholesterol relative to “bad” LDL cholesterol.
  • Phytosterols – These plant-based sterols, similar in structure to cholesterol, can interfere with its absorption in your intestines. Here’s the key benefit:
    • Reduced LDL Absorption: Regularly consuming 2-3 grams of phytosterols per day can help lower LDL cholesterol levels, improving your overall cholesterol ratio.

Learn more:

Soy: A Cholesterol-Lowering Powerhouse

Soy is a unique food rich in several cholesterol-fighting components:

  • Lecithin and Phytosterols: As mentioned earlier, these substances can help lower LDL cholesterol and improve your overall cholesterol ratio.
  • Other Beneficial Compounds: Soy also contains saponins, isoflavones, fiber, and protein, all contributing to its cholesterol-lowering effects.

The result? Soy has a significant impact on reducing LDL cholesterol, specifically targeting the “bad” cholesterol while leaving beneficial HDL cholesterol levels unchanged.

Here’s the key; while simply boiling soybeans might not be the most flavorful option, there are many delicious ways to incorporate soy into your diet:

  • Tempeh: A fermented soybean ptoduct with a nutty flavor and chewy texture.
  • Natto: Fermented soybeans with a strong taste and slimy texture (an acquired taste!).
  • Miso: A fermented soybean paste used in soups, sauces, and marinades.
  • Tofu: A versatile soybean curd available in various textures, perfect for baking, stir-frying, scrambling, and more.
  • Soy Cheese: A dairy-free cheese alternative made from soybeans.

Sesame: Your Secret Weapon Against Cholesterol

Sesame seeds are another excellent source of:

  • Lecithin: As discussed earlier, lecithin can help lower total cholesterol and improve your HDL/LDL ratio.
  • Phytosterols: These plant sterols can reduce LDL cholesterol absorption.

Sesame seeds are a versatile and delicious way to add a cholesterol-fighting boost to your diet. Here are some ideas:

  • Add them to salads: Sesame seeds add a nice nutty crunch to salads.
  • Top your bread or crackers: Sprinkle sesame seeds on bread, crackers, or even whole-wheat toast for an extra flavor and texture.
  • Enjoy tahini: Tahini, a sesame seed paste, is a key ingredient in hummus. You can also use it in sauces, dips, or dressings.

Chickpeas: A Multi-Benefit Legume

Chickpeas, also known as garbanzo beans, deserve a mention for their cholesterol-fighting properties. They offer a double benefit:

  • Soluble Fiber: As discussed earlier, soluble fiber can help lower cholesterol production and absorption.
  • Phytosterols: Chickpeas contain plant sterols that can interfere with LDL cholesterol absorption in your intestines.

Chickpeas are a versatile and delicious legume you can incorporate into your diet in various ways:

  • Hummus: This popular chickpea spread is a tasty and nutritious dip or sandwich spread.
  • Soups and stews: Add chickpeas to soups and stews for extra protein and fiber.
  • Salads: Chickpeas add a protein and fiber boost to salads.
  • Falafel: These vegetarian fritters are made from mashed chickpeas and spices, perfect for wraps or bowls.
  • Roasted chickpeas: Roasted chickpeas are a crunchy and healthy snack.

Nuts & Nut Oils: A Smart Choice for Cholesterol Management

Most nuts and seeds, like walnuts, almonds, flaxseeds, sunflower seeds, and pumpkin seeds, are heart-healthy choices for cholesterol management due to their nutrient profile:

  • Arginine and Polyunsaturated Fatty Acids: These nutrients can contribute to lower LDL cholesterol levels.
  • Phytosterols and Lecithin: These components, though present in smaller amounts, offer additional cholesterol-lowering benefits.

Snack Smart with Nuts and Seeds:

  • Daily Dose: Aim for a handful (20-30 grams) of nuts or seeds as a daily snack. This provides the benefits without excess calories.
  • Mindful Portions: Pre-portion your nuts or seeds to avoid overconsumption. Remember, they are calorie-dense.
  • Go Natural: Choose raw or dry-roasted nuts and seeds whenever possible. Avoid options with added salt or unhealthy fats.

Remember: Moderation is key. While nuts and seeds are beneficial, including them in a balanced and portion-controlled way is crucial for overall health.

Extra Virgin Olive Oil: A Liquid Gold for Heart Health

Extra virgin olive oil is a champion for healthy cholesterol levels for several reasons:

  • Rich in Phytosterols: These plant sterols can help reduce LDL cholesterol absorption.
  • Antioxidant Power: Vitamin E in olive oil helps protect LDL particles from oxidation, keeping them harmless.
  • Monounsaturated Fat Champion: Olive oil is rich in oleic acid, a monounsaturated fatty acid that can improve your HDL/LDL ratio by potentially raising “good” HDL cholesterol.

Beyond Olive Oil: Other Sources of Oleic Acid

Here are some other delicious ways to incorporate heart-healthy oleic acid into your diet:

  • Olives: Enjoy olives themselves, in moderation, for a source of healthy fats and flavor.
  • Avocados: Avocados are a delicious and versatile fruit rich in oleic acid, perfect for adding to salads, toast, or guacamole.
  • Macadamia Nuts: While nuts are generally calorie-dense, macadamia nuts are a good source of oleic acid and can be enjoyed in moderation.

Oily Fish: Your Allies in Cholesterol Control

Oily fish are a must-have for a heart-healthy diet. They’re packed with omega-3 fatty acids, especially EPA and DHA, which offer these benefits:

  • Reduced Triglycerides: Omega-3s can help lower blood triglycerides, a type of fat that can contribute to unhealthy cholesterol levels. Lower triglycerides often lead to larger, less harmful LDL particles.
  • Improved Omega-3/Omega-6 Balance: Omega-3s can help counter the effects of omega-6 fatty acids (abundant in some nuts and seeds). This helps create a healthier overall cholesterol ratio by potentially raising “good” HDL cholesterol relative to “bad” LDL cholesterol.

If you already take advantage of the health benefits of nuts and seeds (often higher in omega-6s), incorporating oily fish into your diet becomes even more crucial.

Aim to include oily fish like anchovies, sardines, mackerel, or herring in your meals at least once or twice a week. This will help balance your omega-3 and omega-6 intake and contribute to a healthier overall cholesterol profile.

Learn more:

Artichokes: A Traditional Cholesterol-Lowering Friend

Artichokes have a long history of being used to support healthy cholesterol levels. Here’s why:

  • Cynarin: This unique phenolic compound found in artichokes can stimulate bile production by the gallbladder. Bile helps eliminate cholesterol from the body.
  • Fiber: Artichokes also contain fiber, which can help block the reabsorption of cholesterol in the intestines.

Simple Preparation Tips:

  • Boiling: Boiling is a simple and effective way to cook artichokes. Pressure cook them for about 15 minutes for easy removal of the leaves.
  • Enjoy the Flavor: Savor the leaves and as much of the stem as possible.
  • Embrace the Bitterness: If you don’t mind the slightly bitter taste, reserve the cooking water as a flavorful broth for soups or stews.

Green Tea: A Hypocholesterolemic Beverage

Green tea is a delicious and heart-friendly drink known for its various health benefits, including potentially supporting healthy cholesterol levels. Here’s why:

  • Catechins: Green tea is rich in catechins, antioxidants with potential cholesterol-lowering properties. Studies suggest they may help reduce both total and LDL (“bad”) cholesterol without affecting HDL (“good”) cholesterol.

While a single cup of green tea daily is unlikely to have a dramatic impact, incorporating it into your routine can contribute to a heart-healthy lifestyle. Here are some additional benefits:

  • Antioxidant Power: Green tea’s antioxidants can help protect your cells from damage.
  • Thermogenic Effect: Some studies suggest green tea may have a mild thermogenic effect, potentially increasing calorie burning to a small degree.

Eggs and Cholesterol: A Myth Busted

Eggs are a good source of protein and don’t significantly raise cholesterol levels. [3] They also contain lecithin, which can actually help balance cholesterol. [4] The bigger concern for cholesterol is from added sugar and refined carbohydrates, and saturated and trans fats.

Should You Use Supplements for Cholesterol? Exploring the Options

While dietary changes are the foundation for managing cholesterol, some supplements might be helpful in certain cases. However, it’s crucial to discuss any supplement use with your doctor before starting. Here’s a brief overview:

  • Lecithin: Soy lecithin supplements are readily available. You can put a spoonful in water, yogurt or any other healthy beverage you like.
  • Phytosterols: Specific phytosterol supplements or enriched foods exist. Aim for 2-3 grams daily, but not more as these can affect fat-soluble vitamin absorption. This is not a problem, but you must be careful to consume enough of them, especially vitamin E and vitamin A (also as carotenoids).
  • Beta-Glucans: Psyllium husk is a natural source, containing more beta-glucans than oats. The outer coating of the seeds of this plant, which contains about 15 times more beta-glucans than oats, is used for hypocholesterolemic purposes up to 10 grams per day, or as a laxative in higher quantities. It’s best to mix it with water before consuming to avoid digestive issues. Oat bran is a more readily available alternative with slightly less beta-glucan.
  • Omega-3s: While omega-3s are essential for heart health, prioritize oily fish (anchovies, sardines, mackerel, herring) in your diet for these benefits. Supplementation might be considered for those with specific triglyceride problems.


  • Consult your doctor before starting any supplements, especially if you take medications.
  • A healthy diet rich in fiber, heart-healthy fats, and fruits and vegetables is the foundation for managing cholesterol. Supplements can be considered as an adjunct therapy, but not a replacement, for dietary and lifestyle changes.
  • Gradual changes are key. Introduce new foods and habits slowly to create a sustainable, heart-healthy lifestyle.

Learn more:


[1] How it’s made: Cholesterol production in your body – Harvard Health

[2] Shining the Spotlight on Trans Fats | The Nutrition Source | Harvard T.H. Chan School of Public Health

[3] Are eggs risky for heart health? – Harvard Health

[4] Egg lecithin – Wikipedia

[5] Cholesterol | The Nutrition Source | Harvard T.H. Chan School of Public Health

[6] Is There a Link Between Stress and High Cholesterol (

[7] HDL: The good, but complex, cholesterol – Harvard Health

You are currently viewing The Best Diet To Lower Cholesterol: A Science-Based Complete Guide
Heart-healthy eating: the smart way to lower cholesterol