What about heart attacks from all this fat on keto?

The idea that high-fat diets cause heart attacks has its origins in the lipid hypothesis. Recent studies show that the lipid hypothesis is likely an oversimplification and that there is no evidence to explain a direct relationship between fat intake and heart disease [1, 2].

The lipid hypothesis (originally based on animal research) suggested that elevated blood cholesterol is the main cause of heart disease. However, recent research shows that the causes of heart disease are wide and varied and that reducing cholesterol to reduce heart disease is more of a dogma than a fact [3]. 

Studies found that heart disease is often a result of a combination of factors like following an unhealthy diet (high in refined sugar, processed food, and unhealthy fats), not enough physical activity, being overweight, chronic inflammation, high blood pressure, smoking, being older, etc. [4]. Besides that, some people are genetically more likely to develop cardiovascular disease than others.

The keto diet helps address many of these risk factors. For example, it helps people lose weight and it lowers inflammation [5], both of which help reduce heart disease risk. On keto, you're also encouraged to eat real and wholesome foods which are rich in heart-healthy nutrients like omega-3 fatty acids, MUFAs, folate, vitamin E, and others.

To make keto as healthy for your heart as possible, focus on eating monounsaturated fats (MUFAs) and essential polyunsaturated fats (PUFAs) - especially omega-3s. Avoid deep-fried foods and refined oils and go for nutrient-dense keto diet foods (rich in vitamins and minerals) like avocados, eggs, nuts, seeds, full-fat yogurt, and low-carb vegetables. 

 

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