Optimum Nutrition
THE BIOHACKING STANDARD
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Named-ingredient version of the Vemax line — L-arginine, acetyl-L-carnitine (ALCAR), zinc, and CoQ10 is a mechanistically coherent male-fertility and endothelial-function stack. Each active has real evidence: L-arginine at 3-6g/day for endothelial NO (Bode-Boger 2003, though L-citrulline is preferred for bioavailability); ALCAR at 1-3g/day for sperm motility (Balercia 2005 in idiopathic male infertility); zinc for testosterone and sperm quality in deficient men; CoQ10 at 200mg for sperm motility (Balercia 2004). The critical problem: a 30-capsule bottle at one per day means each capsule must hold the daily dose of all four actives. That is physically impossible — 3g L-arginine + 1g ALCAR alone would fill a 4g capsule, before ALCAR/zinc/CoQ10. So per-capsule doses are almost certainly well below studied levels. Auto-failed under proprietary_blend_hides_dose because per-active mg not disclosed and dosing math is unfavorable.
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.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
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