How long it takes for vitamins and supplements to work depends on factors like the type of vitamin, your diet and hydration, ...

Vitamin D supplements are generally in your system after 4 to 12 weeks. Learn more about the importance of consistent ...

Beta-carotene is responsible for the intense warm hues of many fruits and vegetables. Think: carrots, sweet potatoes, mangoes ...

Health influencers promote methylated vitamins online, but experts say they may not be any better than traditional supplements.

In some situations, they can be helpful. In others, they can lead to dangerous nutrient deficiencies or imbalances. Experts weigh in on how to make an informed decision.