Optimum Nutrition
THE BIOHACKING STANDARD
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Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
Bovine adrenal glandular extract — a legacy naturopathic ingredient with essentially no modern human RCT evidence for the marketed 'adrenal fatigue' construct (which is not a recognized medical diagnosis; Cadegiani 2016 systematic review found no support). Glandular products can contain trace bovine cortisol/hormones that create pharmacologic effect without clear dose control, and carry residual BSE (mad cow) sourcing risk depending on country and gland tissue. Held at Rejected because the underlying condition it targets is not established and safety controls on bovine glandular tissue are inconsistent. This ingredient is largely obsolete in modern integrative practice.
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are embedded in the analysis text on the "Analysis" tab. For the full framework and evidence hierarchy, see the methodology page.
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
Adrenal Glandular, categorized under Hormonal health & endocrine support in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
48/100 overall — Rejected tier (0–49 band). Per-dimension breakdown: Transparency 55, Formulation 50, Manufacturing 50, Sustainability 45, Safety 42, Evidence 30. Scored as of 2026-08-24.
Bovine adrenal glandular extract — a legacy naturopathic ingredient with essentially no modern human RCT evidence for the marketed 'adrenal fatigue' construct (which is not a recognized medical diagnosis; Cadegiani 2016 systematic review found no support). Glandular products can contain trace bovine cortisol/hormones that create pharmacologic effect without clear dose control, and carry residual BSE (mad cow) sourcing risk depending on country and gland tissue. Held at Rejected because the underlying condition it targets is not established and safety controls on bovine glandular tissue are inconsistent. This ingredient is largely obsolete in modern integrative practice.
Strongest: Transparency at 55/100 (dose disclosure vs proprietary blends, and honesty of marketing claims) and Formulation at 50/100 (dose adequacy, bioavailability form, and ingredient redundancy). Weakest: Safety at 42/100 (adverse-event profile, interaction risk, and dose ceiling) and Evidence at 30/100 (quality of published RCT support for the active ingredients at the label dose). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
No third-party certifications (NSF, USP, ConsumerLab, or equivalent) were on record at the time of scoring. This affects the Manufacturing dimension score. The manufacturer may test internally or have obtained certification more recently — check the current product label for the most up-to-date information.
The top-ranked hormonal health & endocrine support product in the Vyvata catalog is currently Testolite® Corti-Guard at 67/100. See the full ranked list of 87 scored products in this subcategory at https://vyvata.com/pages/best-hormonal-health-and-endocrine-support-supplements-ranked.
The Vyvata Scoring Framework rates every listed product 0–100 across six dimensions: Evidence, Formulation, Manufacturing, Safety, Transparency, and Sustainability. Tier bands: Elite 85–100 (top-tier evidence + formulation + manufacturing), Verified 70–84 (strong on most dimensions), Standard 50–69 (solid but with weaknesses called out), Rejected 0–49 (specific failures documented). Rejected products remain listed with reasons. Full methodology at https://vyvata.com/pages/methodology.
The Vyvata score measures product integrity against a published rubric, not customer sentiment. For customer reviews and community discussion, search external platforms directly: Amazon (https://www.amazon.com/s?k=Adrenal%20Glandular),Google(https://www.google.com/search?q=Adrenal%20Glandular+reviews),Reddit(https://www.reddit.com/search/?q=Adrenal%20Glandular%20review),andTrustpilot(https://www.trustpilot.com/search?query=Adrenal%20Glandular).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.

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