Artifact — health, beauty and the science of what you buy
Fish oil
Fish oil benefits: what human trials found, condition by condition
A review of the human trials behind fish oil's claimed benefits, with effect sizes, the doses used, and a plain grade on how strong each body of evidence is.
Editor’s picks
Buyer’s guides
All guides →
Ingredients, decoded
Know what’s in it before you buy it.
Plain-English profiles of the ingredients in your supplements and skincare — what the research says, who it’s for, and what it pairs badly with.
Browse A–Z →More stories
-
Magnesium
Magnesium safety: side effects, interactions and who should avoid it
-
Magnesium
Magnesium dosage and timing: what trials used and when to take it
-
Magnesium
Magnesium explained: what it does, who needs it, what works
-
Dandelion
Dandelion safety: side effects, interactions and who should avoid it
-
Fish oil
Fish oil safety: side effects, interactions and who should skip it
-
Ashwagandha
Ashwagandha safety: side effects, interactions and who should avoid it
-
Creatine
Creatine safety: side effects, interactions and who should skip it
-
Berberine
Berberine safety: side effects, interactions and who should avoid it