FDA targets bulk powder caffeine sales in warning letter | Natural Products INSIDER
While caffeine is the world's most consumed stimulant, a single teaspoon of pure powdered caffeine, about 2.7 grams, is roughly equivalent to the amount in 28 cups of coffee. FDA is working to eradicate public retail sales of highly concentrated powdered caffeine, issuing a new warning letter to an online seller of the potentially toxic form of the dietary supplement in March. It’s an effort that began in earnest after the agency issued official guidance in 2018. It followed through with a series of warning letters to numerous sellers of caffeine in bulk, whom FDA said were endangerin...