Magnesium L-Threonate vs Citrate: Which One Should You Actually Buy?
Magnesium L-threonate and citrate do two different jobs. L-threonate reaches your brain; citrate doesn’t. Here’s which to buy based on what you actually need.
supplements
Spermidine Benefits: The Autophagy Compound Worth Watching
Spermidine extends lifespan in every organism tested — from yeast to mice. A 2024 study shows it’s essential for fasting-induced autophagy. But can supplements replicate the effect?
Best Supplements to Lower Cortisol Naturally (2026)
Five supplements have RCT evidence for lowering cortisol — but only one has meta-analytic support. Here’s what the clinical data actually shows, ranked by strength of evidence.
L-Theanine for Anxiety: What 11 Clinical Trials Show
L-theanine for anxiety works by boosting alpha brain waves within 40 minutes. A review of 11 RCTs shows 200-400 mg/day reduces stress with no serious side effects.
Postbiotics vs Probiotics: What Science Actually Says
Postbiotics vs probiotics comes down to live vs dead bacteria — and dead ones may win for some people. Here’s what the clinical evidence shows about each.
Best NMN Supplements for Longevity (2026)
Best NMN supplements reviewed against 15+ clinical trials. NMN raises NAD+ levels reliably — but most longevity claims outpace the evidence. Here’s what actually works.
Best Gut Health Supplements in 2026: Evidence-Based Guide
Best gut health supplements ranked by strain-specific evidence from 47+ RCTs. Which probiotics, prebiotics, and postbiotics actually work in 2026.
Berberine Weight Loss: Is It Really ‘Nature’s Ozempic’?
Berberine weight loss claims went viral as ‘Nature’s Ozempic.’ Meta-analyses show it produces ~2 kg loss — about 7× less than semaglutide. Here’s what the evidence actually supports.
Do You Actually Need a Vitamin D Supplement?
A 21-expert panel says most healthy adults don’t need a vitamin D supplement. But four specific groups genuinely benefit — here’s who, how much, and why.
Beetroot Juice vs Creatine: Which One Wins for Fitness?
A 2026 RCT tested beetroot juice vs creatine head-to-head for resistance training. Creatine won for strength; beetroot juice won for nearly everything else.