Eating a keto diet (very low-carb, high-fat) seems to raise cholesterol levels in grown-ups by a small but measurable amount - about 0.36 units on average, according to 27 research studies.

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Evidence from Studies

Supporting (1)

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Impact of the ketogenic diet as a dietary approach on cardiovascular disease risk factors: a meta-analysis of randomized clinical trials.

Systematic Review With Meta-Analysis

2024 Aug

This study looked at 27 clinical trials testing ketogenic diets and found they raised total cholesterol by about 0.36 mmol/L on average - exactly what the claim says.

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No contradicting evidence found

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Source Study

Impact of the ketogenic diet as a dietary approach on cardiovascular disease risk factors: a meta-analysis of randomized clinical trials.

Score: 48

DOI: 10.1016/j.ajcnut.2024.04.021

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Following a ketogenic (keto) diet—very low in carbs and high in fat—appears to lower the amount of fat called triglycerides in people's blood by about 0.2 units, according to research combining results from 27 different experiments.

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