Lowering 'bad' cholesterol below 55 might sound like the best thing to do to avoid heart attacks or death, but studies don’t consistently show that people live longer or have fewer heart problems at that ultra-low level compared to slightly higher levels—so maybe doctors don’t need to push everyone that low.

80

Pro

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Against

Evidence from Studies

Supporting (1)

80

Community contributions welcome

80

Extent of Low-density Lipoprotein Cholesterol Reduction and All-cause and Cardiovascular Mortality Benefit: A Systematic Review and Meta-analysis

Systematic Review With Meta-Analysis

Human

2023 Jan 1

This big study found that pushing LDL cholesterol levels super low (like below 55) didn’t help people live longer or have fewer heart problems than getting them moderately low. So, going ultra-low might not be worth it for most people.

Contradicting (0)

0

Community contributions welcome

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

Extent of Low-density Lipoprotein Cholesterol Reduction and All-cause and Cardiovascular Mortality Benefit: A Systematic Review and Meta-analysis

Score: 80

DOI: 10.1097/FJC.0000000000001345

Similar Assertions

If you have high 'bad' cholesterol, lowering it more aggressively can help you live longer, especially if your levels are really high to begin with. Doctors should decide how hard to treat based on how high your cholesterol is and your overall heart risk.

59

0

80%

If your 'bad' cholesterol is 100 or higher, lowering it more aggressively helps prevent heart-related deaths. But if it's already below 100, lowering it even more doesn't seem to help much — there might be a cutoff where treatment stops adding extra benefit.

0

59

80%

If you've had heart problems before, aiming to get your 'bad' cholesterol really low—below 55—cuts your risk of another heart issue by about a third compared to keeping it just under 70.

83

59

78%

For people who already have heart disease, aiming to get their 'bad' cholesterol (LDL) below 55 mg/dL cuts their risk of serious heart problems by about one-third over three years compared to aiming for below 70 mg/dL — and it doesn’t seem to cause more side effects.

83

0

78%

Lowering 'bad' cholesterol by more than half doesn't help you live longer than lowering it by a smaller amount — after a certain point, going even lower doesn't give you extra protection against heart attacks or death.

80

0

77%