Last verified: 17 days ago
Beef Ovaries
Also known as: bovine ovaries, desiccated ovary, glandular ovary supplement, raw ovary extract
Evidence under review. — Not yet rated
Desiccated animal gland supplement. No clinical evidence it affects human hormones or fertility.
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What it does
Beef ovaries are dried and powdered bovine ovarian tissue sold as a glandular supplement. Proponents claim the tissue contains small amounts of hormones, peptides, and growth factors that may...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose
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Found in
What the Science Says
Beef ovaries are dried and powdered bovine ovarian tissue sold as a glandular supplement. Proponents claim the tissue contains small amounts of hormones, peptides, and growth factors that may support female hormonal balance or reproductive health. There is no published clinical evidence supporting these claims in humans, and the biological plausibility is limited since most proteins and hormones are broken down during digestion before they can act systemically.
What It Doesn't Do
No proven effect on human estrogen or progesterone levels. Won't fix hormonal imbalances or menopause symptoms. No evidence it improves fertility. 'Like supports like' glandular theory is not supported by modern science. Not a substitute for medically supervised hormone therapy.
Absorption & Bioavailability
Unknown — proteins and hormones in glandular tissue are largely degraded by digestion; systemic absorption of intact bioactive compounds is considered unlikely but unstudied
Red Flags to Watch For
- No clinical trials in humans have been published on this ingredient
- May contain trace amounts of bovine hormones — unregulated and unquantified in most products
- Risk of prion disease transmission (BSE/mad cow) from poorly sourced bovine tissue, though risk is low with certified sources
- 913 registered supplement products exist despite zero published clinical evidence — a major marketing-over-science red flag
- Not regulated as a drug; hormone content is not standardized or disclosed on labels
- Pregnant or breastfeeding individuals should avoid due to unknown hormonal content
Products Containing Beef Ovaries
See how Beef Ovaries is used in these analyzed products:
Frequently Asked Questions
What does Beef Ovaries do?
Desiccated animal gland supplement. No clinical evidence it affects human hormones or fertility.
What is the effective dose of Beef Ovaries?
No established dose
Is Beef Ovaries safe?
No clinical trials in humans have been published on this ingredient
What doesn't Beef Ovaries do?
No proven effect on human estrogen or progesterone levels.
Research Sources
- General knowledge — no papers were provided for this ingredient. Limited published research available.
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25