Calley Means on pcos: what the evidence says · JRE #2210
SUBJECT: PCOS
Not a true/false call. Every claim is logged with its sources; read the exhibits below.
If you have PCOS infertility in Europe, most countries, you get a subsidized keto diet because PCOS, which is the leading cause of female infertility, is insulin resistant. It's basically on the diabetes spectrum. And the most effective intervention, the most effective intervention to reverse PCOS and become more fertile is going on a 12-week keto diet.
What the evidence says 01 / RECORD
The underlying premise is correct: PCOS is the most common cause of anovulatory infertility (roughly 90 to 95 percent of anovulatory women seeking fertility treatment have PCOS), and insulin resistance is central to it. But the specifics are overstated. The 2023 International (ESHRE-partnered) PCOS guideline concludes there is no evidence to support any one type of diet over another and names no ketogenic diet; the first-line steps are general lifestyle change and, pharmacologically, letrozole for ovulation induction, not a 12-week keto protocol. Recent systematic reviews find ketogenic diets produce short-term reductions in weight, insulin resistance, and some reproductive hormones, but rest on few, small, short RCTs and stop short of calling keto the most effective intervention, with fertility data too sparse to pool. No evidence was found that most European countries subsidize a keto diet for PCOS infertility. In sum, the claim's framing about PCOS is accurate, but keto being the single most effective, guideline-backed, subsidized intervention is unsupported.