It’s the most popular supplement on the market. But why do we need vitamin D—and why is the advice on how to get it so contradictory? Sunlight is all our bodies need to make vitamin D—a ...

Vitamin D supplements are widely used for bone health and immunity, but excessive intake can lead to silent side effects. High calcium levels, kidney strain, digestive issues, mood changes, and ...

Vitamin D, also called calciferol, is healthy for the body in various ways. Obtained from sun exposure, food, and supplements, it promotes calcium absorption in the gut, aids bone growth, prevents ...

For the first time, ... Feb. 3, 2025 — Maternal vitamin D levels in the first trimester were related to both prenatal growth and pregnancy outcomes, according to a new study. Low vitamin D ...

We've all been there -- digging through the medicine cabinet only to find vitamin bottles with expiration dates that have long passed. Before you toss them in the trash, you might want to reconsider.

All products featured on GQ are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. There are many ...

Vitamins are often associated with energy, immunity and vitality. So, when someone feels nauseous, tired or unwell after taking them, it can lead to frustration or even anxiety. But this ...

Proper sleep, nutrition, and hydration are important parts of muscle recovery. Some find supplements useful in muscle repair and recovery. Between 40-100% of athletes use some type of supplement ...

The answer is simple - calcium. Yet many of us don’t get enough of it through diet alone, and this is where calcium supplements step in as real game-changers. Whether you are a growing girl ...

Taking too many vitamins can increase the risk of overdose. Symptoms of a vitamin overdose include diarrhea, headache, irregular heartbeat, and nausea. The Food and Drug Administration (FDA ...

From preventing anemia and shoring up energy to keeping you sharp and focused, there are many reasons why vitamin B12 is considered a key nutrient. Note: The U.S. Food and Drug Administration (FDA ...

Vitamin B is a group of eight water-soluble nutrients. The body does not store B vitamins, so they need to be replenished daily. Each B vitamin has specific functions related to cell development ...