Eating more plants, whole grains, and healthy fats can lower your risk of heart disease by about 13 to 15%, no matter if you're cutting carbs or cutting fat.

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Pro

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Against

Evidence from Studies

Supporting (3)

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Community contributions welcome

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Effect of Low-Carbohydrate and Low-Fat Diets on Metabolomic Indices and Coronary Heart Disease in U.S. Individuals.

Cohort Study

Human

2026 Jan 30

This study found that eating healthy versions of low-carb or low-fat diets — full of plants, whole grains, and good fats — lowers heart disease risk by about 13–15%, no matter which diet you pick. So yes, quality matters more than whether you cut carbs or fat.

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The Benefits of Plant-Based Diets in Lowering Cholesterol Levels and Promoting Heart Health

Narrative Review

This study shows that eating lots of plants like veggies, whole grains, and nuts helps lower bad cholesterol and keeps your heart healthy — which matches what the claim says about good diets reducing heart disease.

1

Effects of dietary fats versus carbohydrates on coronary heart disease: A review of the evidence

Narrative Review

2005 Nov

This study says eating whole grains, healthy fats from plants and fish, and avoiding junk food lowers heart disease risk — which is exactly what the claim says, no matter if you eat fewer carbs or fewer fats.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Similar Assertions

People who eat low-fat diets full of plants and whole grains are less likely to get heart disease than those who eat low-fat diets full of sugary snacks and processed foods, according to long-term studies of U.S. health workers.

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88%

Eating mostly whole, unprocessed plant foods like vegetables, fruits, beans, and whole grains is more important for preventing heart disease than worrying about whether you eat more fat or carbs.

59

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People who eat lots of healthy plant foods like whole grains, fruits, nuts, and veggies over a long time have a 25% lower chance of getting heart disease than those who don’t eat as many of these foods—so what you eat within a plant-based diet really matters for your heart.

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86%

People who eat low-carb diets full of plants and whole grains are less likely to get heart disease than those who eat low-carb diets full of junk food and meat, according to long-term studies of U.S. health workers.

52

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86%

Eating mostly whole plant foods like vegetables, fruits, and whole grains is better at preventing heart disease than worrying about whether you eat more fat or more carbs.

59

0

86%