Keto Induces Cardiac Fibrosis GOSH DARN IT

Dr. Eric Berg 07/26/2024

Many people are curious about the keto diet. But what about its impact on heart health? It's a question I get a lot, which makes sense since heart health is so important.

Unfortunately, there's a lot of confusing and often contradictory information about the keto diet and heart health. A recent study supposedly showed the keto diet causing heart scarring in rats.

As a health professional, I feel it's vital to clarify what good-quality science says about the keto diet and its relationship with heart health.

Dispelling the Myths About the Keto Diet and Heart Health

That study with the rats? It had some serious flaws. Researchers used a very unnatural “keto” diet loaded with inflammatory ingredients that no human would, or should, ever eat.

Rats don't even process fat the same way humans do. Not exactly the best basis for drawing conclusions about the human heart, right?

The truth is, a well-formulated ketogenic diet, done properly, is very different. It focuses on real, whole foods and can actually improve several markers of heart health.

Woman holding red heart

How a Healthy Keto Diet Benefits Heart Health

Let's break down some key ways a properly implemented keto diet supports heart health:

1. Weight Management

Carrying excess weight, especially around the midsection, is a major risk factor for heart disease. The keto diet is naturally very satiating due to its effect on hormones like ghrelin (often called the “hunger hormone”).

This makes it much easier to manage your weight without constantly feeling hungry.

2. Triglyceride Levels

High triglycerides, a type of fat found in the blood, are a known risk factor for heart disease. Studies have consistently shown that keto diets can drastically reduce triglyceride levels, which is why many people turn to the keto diet to improve their health.

3. HDL Cholesterol

HDL cholesterol is often referred to as “good” cholesterol. Higher levels are generally protective against heart disease.

Studies often, but not always, show an increase in HDL cholesterol on a ketogenic diet. More research is needed to be completely sure about this correlation.

4. Blood Pressure

High blood pressure is another major risk factor for heart issues. Research has shown that the keto diet can contribute to healthy blood pressure regulation, particularly for those with elevated levels.

Maintaining a healthy blood pressure is just one facet of good circulatory health.

5. Blood Sugar Control

Chronically elevated blood sugar can damage blood vessels, potentially increasing the risk of heart problems down the road.

By its very nature, the ketogenic diet excels at stabilizing blood sugar, which leads to more consistent energy levels throughout the day.

6. Insulin Sensitivity

Insulin resistance, a condition where your cells don't respond to insulin effectively, is linked to metabolic problems, including heart disease.

The keto diet can improve insulin sensitivity. This is just one of the many positive metabolic changes that can occur on the keto diet.

Addressing Potential Concerns

While the potential benefits of keto for heart health are compelling, I know some people may still have concerns, and it's important to address those.

Cholesterol

You might see an increase in LDL (often called “bad” cholesterol) on keto.

However, this doesn't tell the whole story. Emerging research suggests that the type of LDL particles matters more than the total number. Keto tends to shift LDL particles to a less harmful, larger size.

Nutrient Deficiencies

Like any restrictive diet, it's important to do keto correctly to avoid potential nutrient deficiencies.

Make sure you're getting enough electrolytes like sodium, potassium, and magnesium. I also recommend a good quality multivitamin to fill in any nutritional gaps and support overall wellness.

Meatballs in a pan

Heartfelt Health

Delve into the complex relationship between the ketogenic diet and heart health. The keto diet, known for its low-carb, high-fat approach, can offer significant benefits such as improved cholesterol levels and reduced inflammation, which are vital for heart health.

However, it also carries potential risks, including the intake of unhealthy fats that could negatively impact cardiovascular health if not managed properly. To reap the heart-healthy benefits while minimizing risks, it's crucial to focus on nutrient-dense, wholesome foods.

A perfect example is a meal of meatballs & zoodles. This dish combines lean, protein-packed meatballs with low-carb, fiber-rich zucchini noodles, making it a heart-friendly option that aligns with keto principles.

By choosing balanced meals like meatballs & zoodles, you can enjoy the benefits of the keto diet while supporting your heart health.