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Strong Support

If swapping butter for olive oil doesn’t lower your ‘bad’ cholesterol much, then maybe this common diet advice won’t help you either.

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Evidence from Studies

Supporting (1)

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Does variation in serum LDL-cholesterol response to dietary fatty acids help explain the controversy over fat quality and cardiovascular disease risk?

Narrative Review
2021 Jul

Some people’s cholesterol doesn’t drop much when they swap butter for olive oil — and this study says that for those people, the advice to make that swap might not help much at all.

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.

Source Study

Does variation in serum LDL-cholesterol response to dietary fatty acids help explain the controversy over fat quality and cardiovascular disease risk?

Score: 1
DOI: 10.1016/j.atherosclerosis.2021.03.024

Similar Assertions

If you swap out butter and fatty meats for oils and nuts, your 'bad' cholesterol goes down, which helps prevent clogged arteries and heart problems.

20
0
85%

If you're at risk for metabolic problems, swapping butter or fatty meats for olive oil or avocados doesn't drop your 'good' cholesterol as much as swapping them for bread or sugar.

56
0
80%

Instead of eating lots of butter and fatty meats, eat more olive oil, nuts, and fish — but only as part of a healthy way of eating like the Mediterranean or DASH diet, which doctors and health groups say is best.

20
0
79%

If you swap out butter or fatty meats for bread or pasta, your bad cholesterol goes up more than if you swap them out for olive oil or avocado — and the difference is pretty small, but it’s there.

0
56
79%

People’s cholesterol levels react differently when they swap out saturated fats in their diet, and this difference might be why studies can’t agree on whether eating more saturated fat increases heart disease risk.

1
0
78%