Medically reviewed by Jamie Johnson, RDN If you've recently started taking a new vitamin or supplement, you might wonder how long it takes for vitamins to work​ or when you’ll notice a difference. The ...

Women who might become pregnant should be especially cautious with vitamin A supplements or avoid them entirely .

For example, 3,000 IU of vitamin A (as retinol) is 900 mcg RAE. About 18,000 IU beta carotene, which is less potent than ...

The expiration date on your vitamin bottle often doesn't reflect what you believe. If you're worried about supplements sitting in your cabinet for too long, here's what the experts think you should do ...

The best multivitamins for women help you shore up nutritional gaps at every stage of life, whether you're a mom-to-be seeking the best prenatal vitamin, or you're a woman over 50 who needs an option ...

Too many supplements and medications can be hard on your liver. A doctor explains how to get the most bang for your buck and avoid side effects.

A study conducted at the Botucatu School of Medicine at São Paulo State University (FMB-UNESP) in Brazil has shown that low-dose vitamin D supplementation can increase the effectiveness of ...

Vitamin D is a critical nutrient that impacts countless areas of life. From bone and teeth support to muscle function, reducing inflammation, and regulating calcium absorption, it provides cross ...

The company's vitamin D supplement, SYNCADOL ®, is a natural solution for consistent vitamin D supplementation to address a deficiency.

Research Continues to Reinforce the Importance of Consistent Vitamin D Intake for Immune Support. SYNEVIT®'s Vitamin D Supplement Addresses the Need.