Eating fewer calories might help women with a health condition called PCOS by lowering certain hormone levels, making their bodies respond better to sugar, and helping them have regular periods.

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Evidence from Studies

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Caloric restriction in female reproduction: is it beneficial or detrimental?

Narrative Review

2021 Jan 4

The study talks about cutting calories and how it affects women's ability to have babies in general, but it doesn't specifically look at whether it helps with PCOS in overweight women, so it doesn't really back up the claim.

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

Caloric restriction in female reproduction: is it beneficial or detrimental?

Score: 1

DOI: 10.1186/s12958-020-00681-1

Similar Assertions

Women with PCOS are more sensitive to the negative effects of fat in the blood — their muscles struggle much more to use sugar when fat levels rise, compared to women without PCOS.

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45

78%

Women with PCOS who exercised regularly became fitter and had better blood sugar control, but didn’t lose weight or change their fat levels in the blood.

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For obese women with PCOS, taking metformin along with a low-calorie diet helps them lose more weight, shrink belly fat, lower male hormone levels, and get more regular periods than just dieting alone.

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72%

Women with PCOS who did 3 moderate workouts a week for 2 months became better at handling fat in their blood without losing weight — their muscles could use sugar more efficiently even when fat levels were high.

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45

71%