Health answers
Health answers and supplement buying guides
Plain-English, evidence-based answers to common questions about health concerns and the supplements marketed for them — what the research supports, what it doesn't, and what to check before you buy.
What causes tingling in the feet?
Tingling in the feet has many possible causes, from temporary pressure to nerve-related conditions. Here's a p…
Read answer →Nerve HealthBest vitamins and ingredients for nerve health
Which vitamins and supplement ingredients actually have research behind them for nerve health? A look at the o…
Read answer →Blood Sugar & MetabolismWhat ingredients support healthy blood sugar levels?
From berberine to cinnamon, many ingredients are marketed for blood sugar. Here's which ones have real evidenc…
Read answer →Weight & MetabolismHow to compare weight-loss supplements
Weight-loss supplements are the most hype-prone category there is. Here's a practical, honest checklist for co…
Read answer →Gut & Digestive HealthDo probiotics really help gut health?
Probiotics are everywhere, but the evidence is more nuanced than the marketing. Here's what the research actua…
Read answer →Prostate & Men's Urinary HealthWhat to check before buying a prostate supplement
Prostate supplements are popular with older men, but the evidence is mixed and the claims can mislead. Here's …
Read answer →Men's Vitality & TestosteroneBest ingredients for men's vitality
Men's-vitality supplements promise a lot. Here's which ingredients have at least modest evidence, which don't,…
Read answer →Skin & Anti-AgingCan collagen supplements support skin elasticity?
Collagen supplements are marketed hard for youthful skin. Here's what the research actually suggests about ski…
Read answer →Buying GuidesHow to read a supplement label before buying
A supplement label tells you more than the marketing does — if you know what to look for. Here's how to read o…
Read answer →Buying GuidesAre supplement reviews always reliable?
Many "supplement reviews" online are really sales pages in disguise. Here's how to spot a trustworthy review f…
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