Is a ketogenic diet safe for people with high cholesterol?

Recent studies show that low-carb diets such as keto are more effective at raising good (HDL) cholesterol than low-fat diets [1, 2]. However, there are also studies showing that keto can increase total cholesterol (HDL and LDL) [2]. On the other hand, low-carb, high-fat diets also decrease LDL particle concentration (LDL-P), increase the size of LDL cholesterol and decrease the amount of harmful VLDL cholesterol in the blood [2], all of which have a positive effect on cardiovascular fitness.

These differences in results and effect may be due to diet quality, study type, and metabolic differences between participants. But overall, keto exerts a positive effect on cardiovascular health more often than a negative one.

This means, that if you have high cholesterol, there is a strong possibility that carbohydrate restriction can be a healthy choice for you [3].


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