The Claim

Delta-7 sterols naturally present in pumpkin seeds inhibit 5-alpha reductase, thereby reducing the conversion of testosterone to dihydrotestosterone (DHT).

Source: This Stops Hair from Thinning, Graying, and Balding

What the research says

Supports is higher

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

Supports
55score
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
1 study reviewed
In plain English

Pumpkin seeds contain a natural compound that may block a process in the body that turns testosterone into a stronger hormone called DHT, which some people want to reduce.

See the scientific wording

Delta-7 sterols naturally present in pumpkin seeds act as inhibitors of 5-alpha reductase, reducing the conversion of testosterone to dihydrotestosterone (DHT).

What the research says

1 study

  1. Study: Effect of Pumpkin Seed Oil on Hair Growth in Men with Androgenetic Alopecia: A Randomized, Double-Blind, Placebo-Controlled Trial

    Pumpkin seed oil helped men grow more hair, which suggests it’s blocking a hormone (DHT) that causes hair loss—exactly what the claim says the compounds in pumpkin seeds do.

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Read analysis

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 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.