The Claim

Cholesterol serves as a necessary precursor for the synthesis of sex hormones, and diets that severely restrict cholesterol intake disrupt menstrual cyclicity and accelerate reproductive aging.

Source: Ep.15 - Thyroid Health Explained: Reclaiming Vitality with Elle Russ | Baby, Let's Talk! Podcast

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
19score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
2 studies reviewed
In plain English

Cholesterol is required to produce sex hormones, and very low-cholesterol diets are associated with disrupted menstrual cycles and earlier decline in reproductive function.

See the scientific wording

Cholesterol is a necessary precursor for sex hormone synthesis, and diets severely restricted in cholesterol can disrupt menstrual cyclicity and accelerate reproductive aging.

Why this might work

The body needs cholesterol to make sex hormones like estrogen and testosterone. When cholesterol levels drop inside hormone-producing cells, those cells cannot start making hormones because cholesterol is the first building block. This causes hormone levels to fall, which disrupts menstrual cycles and speeds up the aging of the reproductive system.

Verified mechanismbased on 2 studies

What the research says

2 studies
  1. Study: A high cholesterol diet increases serum estradiol in female rats with lower energy availability following a treadmill training program

    This study found that when female rats ate more cholesterol, they made more of the hormone needed for menstrual cycles. This suggests that without enough cholesterol, hormone levels might drop and cycles could become irregular — just like the claim says.

  2. Study: Bisphenol A attenuates testosterone synthesis via increasing apolipoprotein A1-mediated reverse cholesterol transport in mice

    This study shows that when cholesterol is pulled out of the testes, testosterone production drops—proving cholesterol is needed to make sex hormones. While it didn’t test low-cholesterol diets, it still supports the idea that too little cholesterol can mess up hormone balance.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.