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Should You Be Worried About High LDL Cholesterol On a Carnivore Diet?

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The carnivore diet has gained popularity in recent years, and many people have adopted this way of eating to improve their health. However, some individuals have reported increased LDL cholesterol levels while on the diet. In this article, we will explore the potential risks and benefits of high LDL cholesterol on a carnivore diet, and discuss whether or not this should be a cause for concern.

What is LDL Cholesterol?

Before delving into the topic, let's first understand what LDL cholesterol is. Low-density lipoprotein (LDL) is often referred to as "bad" cholesterol because high levels of LDL can lead to a buildup of cholesterol in the arteries, increasing the risk of heart disease and stroke.

Cholesterol is a complex molecule that is essential for various bodily functions. However, it is also notorious for its association with heart disease. As a result, managing cholesterol levels has become a crucial aspect of maintaining good health. In this article, we'll delve deeper into the world of cholesterol and examine its impact on our bodies.

Lipoprotein Basics

Cholesterol is transported throughout our bloodstream by lipoproteins. These particles can be classified into three types: High-Density Lipoprotein (HDL), Low-Density Lipoprotein (LDL), and Very Low-Density Lipoprotein (VLDL). HDL is known as the "good" lipoprotein as it helps to remove cholesterol from the bloodstream, while LDL is often referred to as the "bad" lipoprotein due to its association with heart disease.

Perplexing Molecule

Cholesterol is a perplexing molecule that plays an important role in the body. On one hand, it is necessary for synthesizing sex hormones and forming cell structures. On the other hand, it is the primary contributor to the buildup of plaque in arteries that leads to heart disease.

Impact of Diet

Diet plays a significant role in cholesterol management. Low-carb, high-fat diets have been found to increase LDL levels, which may cause concern for those trying to manage their cholesterol levels. However, it is essential to remember that not all LDL is bad. Total cholesterol levels alone do not indicate the risk of heart disease; the ratio of HDL to LDL must also be considered. Studies show that high cholesterol can be linked to cardiovascular disease.

Managing Cholesterol

Medical boards worldwide agree that high LDL levels increase the risk of heart disease. The recommended LDL level is below 3mmol/L or 116mg/dL. However, it's important to consider other factors such as family history, lifestyle, and overall health when managing cholesterol levels. The diet can also be high in saturated fat and LDL cholesterol. Eliminating nutrient-rich food groups and increasing saturated fat can increase the risk for heart disease.

The Carnivore Diet and LDL Cholesterol

The carnivore diet consists of consuming animal products exclusively, such as meat, fish, eggs, and dairy. This diet is naturally high in saturated fat and cholesterol, which can cause an increase in LDL cholesterol levels. However, there's an ongoing debate about whether the increase in LDL cholesterol from a carnivore diet is harmful or not.

Dietary Cholesterol vs. Blood Cholesterol

It's important to distinguish between dietary cholesterol, which is found in the food we eat, and blood cholesterol, which circulates in our bloodstream. Research suggests that dietary cholesterol may not have a significant impact on blood cholesterol levels for most people. In fact, the body produces the majority of its cholesterol, and dietary cholesterol only contributes to a small portion of the total amount.

The Role of Inflammation

One argument in favor of the carnivore diet is that it may reduce inflammation, which is a significant factor in the development of heart disease. Some studies have shown that a high intake of animal products can lower markers of inflammation, potentially counteracting the negative effects of increased LDL cholesterol.

Individual Variability and Genetic Factors

It's important to note that individual variability plays a significant role in determining how the body responds to different diets. Some people might experience an increase in LDL cholesterol while on the carnivore diet, while others may not. Genetic factors, such as familial hypercholesterolemia, can also contribute to elevated cholesterol levels and may require medical intervention.

Elevated LDL and Cardiovascular Risk

Research has shown that not all LDL particles are created equal. Smaller, denser LDL particles are more likely to cause plaque buildup in the arteries, whereas larger, less dense LDL particles are considered less harmful. Some studies have suggested that the carnivore diet may increase the proportion of larger, less dense LDL particles, which could potentially reduce the risk of heart disease. Eating saturated fat tends to increase the big fluffy, Pattern A, benign LDL. Eating sugar and carbs tends to increase the smaller, scarier, Pattern B, LDL.

Monitoring Your Cholesterol Levels

If you're considering a carnivore diet or are already following one, it's crucial to monitor your cholesterol levels regularly. It's also essential to discuss your dietary choices with your healthcare provider, who can help you assess your cardiovascular risk and determine whether any adjustments to your diet are necessary.

Switching to the carnivore diet will cause the body to learn to burn fatty acids (which is much more efficient for the body) and make ketones from those fatty acids, we can also burn ketones for fuel very efficiently. When the liver starts to take those acids and make ketones it does so using the same pathway that is used to take acids and make cholesterol molecules. So, increasing the production of ketones will also increase the production of cholesterol by default and we get higher cholesterol levels in the blood.

Healthier Low-Carb Diets

The Mediterranean Diet

The Mediterranean diet is a healthy and balanced diet that focuses on whole foods, healthy fats, and moderate protein intake. The diet emphasizes fruits, vegetables, whole grains, legumes, nuts, and seeds, while limiting red meat and processed foods. The Mediterranean diet has been linked to a reduced risk of heart disease, stroke, and diabetes.

The DASH Diet

The DASH (Dietary Approaches to Stop Hypertension) diet is another healthy and balanced diet that emphasizes whole foods and limits processed foods. The diet focuses on fruits, vegetables, whole grains, lean protein sources, and low-fat dairy products. The DASH diet has been shown to lower blood pressure and reduce the risk of heart disease.

The Flexitarian Diet

The Flexitarian diet is a plant-based diet that allows for occasional meat consumption. The diet emphasizes fruits, vegetables, whole grains, legumes, nuts, and seeds, while allowing for moderate amounts of lean meat and seafood. The Flexitarian diet has been linked to weight loss, improved metabolic health, and a reduced risk of heart disease.

The Paleo Diet

The Paleo diet is a low-carb diet that emphasizes whole foods and limits processed foods. The diet focuses on meat, fish, poultry, fruits, vegetables, nuts, and seeds, while excluding grains, dairy, and processed foods. The Paleo diet has been linked to weight loss, improved blood sugar control, and a reduced risk of heart disease.

The Ketogenic Diet

The Ketogenic diet is a low-carb, high-fat diet that has been shown to be effective for weight loss and improving blood sugar control. The diet focuses on high-fat foods, such as nuts, seeds, avocados, and healthy oils, while limiting carbohydrates and protein. The Ketogenic diet has also been linked to improved brain function and a reduced risk of certain types of cancer.

The Bottom Line

There's no one-size-fits-all answer to whether high LDL cholesterol on a carnivore diet is a cause for concern. While the low-carb diet has gained attention it may not be suitable for everyone.

Individual factors, such as genetics, age, gender, and overall health, can play a significant role in determining how your body reacts to the carnivore diet. As a result, it's essential to take a personalized approach when evaluating the impact of high LDL cholesterol levels on your health.

Lifestyle Factors and Heart Health

In addition to diet, several lifestyle factors can influence your heart health and LDL cholesterol levels. Regular exercise, maintaining a healthy weight, managing stress, and not smoking are all essential components of a heart-healthy lifestyle. It's crucial to consider these factors in conjunction with your diet to obtain a comprehensive understanding of your cardiovascular risk.

Nutrient Considerations on a Carnivore Diet

While the carnivore diet may offer some potential benefits, such as reduced inflammation, it's essential to be aware of the potential nutritional deficiencies that may arise from following this diet. The absence of plant-based foods in the carnivore diet may result in inadequate intake of essential nutrients, such as fiber, vitamins, and minerals. These nutrients play a vital role in maintaining overall health, including cardiovascular health.

To mitigate these risks, individuals following a carnivore diet should be mindful of incorporating a variety of animal-based foods, including organ meats and fatty fish, to obtain a wide range of nutrients. It's also worth discussing supplementation with a healthcare professional to ensure you're meeting all of your nutritional needs.

Potential Alternatives to the Carnivore Diet

If you're concerned about high LDL cholesterol levels while following a carnivore diet, you may consider exploring alternative dietary approaches that prioritize heart health. Some options include:

  • The Mediterranean diet, which emphasizes fruits, vegetables, whole grains, legumes, and healthy fats from sources like olive oil and fish.
  • The DASH (Dietary Approaches to Stop Hypertension) diet, which focuses on reducing sodium intake and promoting the consumption of nutrient-dense foods.
  • A low-carb, high-fat (LCHF) diet, which can provide some of the benefits of the carnivore diet while still allowing for the inclusion of plant-based foods. Examples are the Keto Diet and the Atkins Diet.

Each of these diets has been associated with improved heart health and may be more suitable for individuals who are concerned about high LDL cholesterol levels.


Ultimately, whether or not you should be worried about high LDL cholesterol on a carnivore diet depends on your individual circumstances, genetic predisposition, and overall health. It's essential to regularly monitor your cholesterol levels and work closely with a healthcare professional to assess your cardiovascular risk and determine the most appropriate dietary approach for your unique needs.

Remember that a heart-healthy lifestyle extends beyond your diet, and it's crucial to prioritize regular exercise, stress management, and other lifestyle factors that can contribute to improved cardiovascular health. By taking a comprehensive approach to your heart health, you can make informed decisions about the best way to optimize your well-being.

Caroline Buckee

Caroline Flannigan is an epidemiologist. She is an Associate Professor of Epidemiology and is the Associate Director of the Center for Communicable Disease Dynamics.

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