Supplements
Collagen supplements and joint pain: what the trials actually show
Small trials report collagen peptides raising markers of collagen synthesis and easing activity-related joint pain — the evidence base stays thin and short-term.
Supplements
Creatine, beta-alanine, caffeine, nitrates and the rest ranked by trial quality and effect size, with dosing, timing and third-party testing status stated.
Supplements
Beta-alanine meta-analyses converge: real gains, narrow window
Recent pooled analyses put beta-alanine's benefit near 2.85 percent — concentrated in efforts lasting about one to ten minutes.
Supplements
Creatine market calms after the price spike as gummies reshape demand
Raw monohydrate prices have eased from their 2024 peak while a boom in creatine gummies pulls the market toward new formats, per industry data.
Supplements
Proprietary blends: what supplement labels are allowed to hide
US rules require a proprietary blend to list its ingredients by weight order and its total weight — but not a single individual amount.
Supplements
How FDA supplement warning letters actually work
Warning letters are public, dated enforcement documents — and reading them directly is more reliable than any summary of enforcement trends.
Supplements
Heavy metals in protein powders: what the testing found
Independent tests of protein powders have detected cadmium, lead, arsenic and mercury at varying levels — mostly trace, occasionally elevated, and never zero.