Useless supplements according to nutrition experts
Useless supplements you're likely already getting enough of through your diet, according to nutrition expert
Adults typically get enough zinc, and taking the mineral won't stop a cold
Typical American diets contain enough vitamin B, excluding B12
Most Americans are getting enough vitamin A — but supplements are causing overdoses
Vitamin C supplements might reduce the severity or length of a cold, but overtaking supplements won't help
Some populations may still require supplements for health
Nutrition experts said Americans should try to get all nutrients from food rather than through supplements.