Learning Path · Nutrition
At the supplement shelf
Seven steps to judging a bottle yourself: what it actually is, how hard the evidence is, and whether it fights what you already take.
For: Someone lost in supplement marketing who wants to know which bottle has real evidence
Start with the most common bottle on the shelf. What's inside a multivitamin, and what it assumes you're short of — whether that assumption holds decides everything after.
- Multivitamin · #1 supplement worldwideOpen in the atlas
Next, the most heavily marketed category. Weight-loss supplements treat 'mechanistically plausible' as 'clinically useful' — the distance between those two is the ruler you'll use for the rest of this path.
- Weight-loss supplements debunked · what works, what's a scamOpen in the atlas
One bottle is the opposite: not useless but *too* active — its ingredient is a prescription statin, just with no dose on the label. This is where the word 'natural' fully breaks down.
- Red Yeast Rice · Monascus purpureusOpen in the atlas
What does a category with real evidence look like? Fish oil has genuine RCTs, but its indications are far narrower than the ads. Learn the gap between 'has evidence' and 'has evidence for you'.
- Fish Oil · EPA / DHA SupplementOpen in the atlas
Then the fuzziest word of all. 'Adaptogen' isn't a pharmacological class, it's a basket — find out which few things in it have RCTs, and what the rest are selling on.
- Adaptogens & Medicinal MushroomsOpen in the atlas
'Natural doesn't mean safe' needs a concrete mechanism behind it, not a slogan. Look at what the liver and kidneys actually meet when they process these compounds.
- Herb Safety · natural doesn't mean safeOpen in the atlas
The last step isn't on the shelf: the medication you already take. Supplements and prescriptions share the same enzymes and transporters — this is the link most likely to actually hurt someone.
- Drug–Nutrient Interactions · Does long-term medication need a top-up?Open in the atlas