A study found people who took vitamin D supplements were less likely to develop dementia. But experts said other factors may have been the reason for the reduced risk.

Nutritionist and credentialed coach Stan Efferding revealed his top two supplements for workout performance and discussed dieting.

What are the best multivitamin and mineral supplements, and are they worth it? Find out who may benefit from taking a multivitamin, and which nutrients should be included in a multi.