Educational information, not medical advice.See how evidence is graded

West African and Caribbean remedies: 488 plants and preparations, graded by evidence

This is the fastest-growing part of our library and the least well served elsewhere: prekese, bitter leaf, scent leaf, guinea hen weed, sinkle bible, bissy. Many are foods first and remedies second, and the traditions travelled with people — the same plant carries a Yoruba, an Akan and a Jamaican name, and the pages keep all of them because that is what readers search. Laboratory work is common here; controlled trials in humans are not, and the grades show it.

AA — consistent trial evidence4

BB — some trial evidence20

CC — limited or mixed evidence108

DD — little evidence beyond tradition66

–Insufficient evidence276

–Not yet graded14

Not every remedy names a tradition. Browse the full A–Z index for all 3,787 remedies, including the 255 with no recorded tradition.