“It’s best in general to get the B vitamins from regular foods, occasionally with liver, because supplements usually contain contaminants that can cause allergic reactions when they are used for a long time. Other B vitamins that are usually safe for occasional use are B1, niacinamide, and pantothenic acid.” -Ray Peat
“Some of the B vitamins, especially B2, can be very allergenic. B6 doesn’t affect the others very much; 10 mg per day is a big dose.” -Ray Peat
Author
Cari