Supplements

If you're searching for whether ashwagandha genuinely raises testosterone, the short answer is: it can modestly, but mainly in men who are already training hard or running below their natural baseline — the effect in men with fully normal testosterone is small enough that you might not notice it. This article breaks down the specific […]

Complete guide to collagen supplements: hydrolyzed peptides for skin, UC-II 40 mg for joints, marine vs bovine, trial-backed doses, honest limits.

A nutrition scientist on the best taurine supplements: 1 to 3 g a day, the honest gap between the mouse aging data and humans, and why you should not overpay.

Prebiotics vs probiotics vs synbiotics, sorted by a dietitian: what each one is, who benefits, and which to reach for first. See what the evidence supports.

NMN vs NR bioavailability compared with niacinamide and nicotinic acid. Honest cost-per-NAD+ math, pathway biochemistry, and which precursor is worth buying.

A nutrition scientist grades the longevity supplement aisle by evidence tier: which molecules have human RCTs, which are animal-only, and which are hype.

A registered dietitian compares shelf-stable vs refrigerated probiotics: what cold storage actually protects, when it matters, and how to read the CFU-at-expiry label.

If you're searching for whether lion's mane mushroom improves focus, the honest answer is: it may support cognitive function in older adults with mild cognitive decline, but the evidence for healthy adults trying to sharpen a workday is nearly absent. The single most-cited human RCT tested lion's mane in Japanese adults aged 50-80 with mild

A dietitian on probiotic strains: how Lactobacillus, Bifidobacterium, and Saccharomyces differ, and how to match a named strain to your goal.

A registered dietitian’s probiotics guide: match strain to goal, read CFU at expiry, and skip the noise. See what the evidence supports.