Researchers are still trying to understand why some people develop Long COVID: lasting symptoms of the disease that can ...

Vitamin D is an essential nutrient for your immune system, heart health, and more. However, most Americans don't get enough vitamin D.

Vitamin D is a fat-soluble vitamin and supplement that supports bone health and the immune system. Supplements like magnesium ...

In a large, randomized trial, researchers at Mass General Brigham found that high-dose vitamin D3 did not reduce COVID-19 ...

Vitamin D deficiency has become increasingly common despite abundant sunlight in many regions. Doctors link the trend to indoor lifestyles, pollution, limited sun exposure, and dietary gaps. Low ...

Research has associated GLP-1 medications with vitamin D deficiencies, highlighting the importance of nutrition counseling ...

Low vitamin D levels may affect your sex drive by influencing hormones, mood, energy, and blood flow. Learn how vitamin D deficiency affects libido and whether supplements can help.

High-dose Vitamin D doesn't reduce acute COVID severity but shows a promising signal for reducing Long COVID and brain fog.

This week's roundup focuses on healthy beverages that can help you sneak some additional nutrients and benefits into your diet.

Overdoing it on this popular supplement can lead to a host of serious health issues, which one man learned the hard way. Per a study published in the journal BMJ Case Reports, the unidentified ...

They're among the most taken supplements in the world, but many people have misconceptions about what a multivitamin is - and how to use them.

Evidence from randomized trials suggests that calcium supplements may not significantly reduce fracture risk in well-nourished adults.