The Library
Plain-English breakdowns of the supplement science that actually matters — absorption, dosing, and what the labels don't tell you.
Iron deficiency: why women feel tired (and what actually fixes it)
Iron deficiency is the most common nutritional deficiency in the world — and one of the most under-diagnosed in adult women. The reason most iron supplements get abandoned...
Probiotics: why most never survive your stomach
The probiotic capsule you swallowed this morning may not have made it. Stomach acid kills 70–90% of standard probiotic bacteria before they reach your gut. Here's what actually...
The collagen question: does swallowing it actually rebuild yours?
Collagen is the most abundant protein in your body. The supplement industry sells it as if you can swallow more and your body will use it. The actual...
L-theanine + caffeine: the focus stack, explained
Caffeine alone is a blunt instrument: focus, but with jitters, cortisol spikes, and a crash. L-theanine is the modifier that fixes most of those side effects without dulling...
Melatonin: how much you actually need (and when)
The bottle says 5 mg. Or 10. Or 20. Your body produces less than half a milligram per night. Total. From scratch. If you've taken a melatonin gummy...
Why most of your capsule never reaches your bloodstream
You swallow a vitamin every morning. The label promises 1,000 mg of curcumin, 500 mg of CoQ10. But how much actually reaches your blood? Less than you'd hope...
