Foundational supplement guides
Every foundational guide we've published, graded by the strength of the human trial evidence behind it. No rankings, no affiliate deals.
FoundationalModerate evidence
Vitamin D3: when supplementing actually moves the needle
Genuinely useful if you're deficient, mostly irrelevant otherwise. Knowing which one you are is the whole trick.
8 min readRead guide
FoundationalModerate evidence
Omega-3 (EPA/DHA): fish oil that isn't a waste of money
Most fish oil sold is underdosed. Here's what the actual trial doses look like and why the ratio on the label matters.
10 min readRead guide
FoundationalModerate evidence
Magnesium glycinate: the form matters more than the marketing
Magnesium is genuinely under-consumed, but which compound you buy determines whether it helps or just sends you to the bathroom.
8 min readRead guide