Taking too much vitamin D can cause nausea, vomiting, weakness, and bone pain. Over time, vitamin D toxicity may cause heart ...

Sunlight and diet provide most of our vitamin D, but in modern life, many people struggle to maintain optimal levels. Whether ...

That’s because our body doesn’t make enough of the stuff in the darker months as sunlight decreases. Vitamin D is key to ...

“However, we discovered that vitamin D2 supplements can actually decrease levels of vitamin D3 in the body, which is a ...

Since vitamin D accumulates in the body, taking a high-dose supplement may lead to vitamin D toxicity. This causes nausea, vomiting, and weakness.

Learn how vitamin D functions and may affect diabetes, heart disease, cancer, and dementia risk. Plus, how it could benefit ...

A recent death in the UK is raising questions about whether extremely high doses of vitamin D can be dangerous. Here’s what the experts say. By some estimates, nearly a quarter of Americans have ...

Study suggests the lowest dose of vitamin D3 supplements needed to suppress parathyroid hormone in overweight and obese adults is 1000 IU daily. For overweight and obese individuals, taking 1000 IU of ...

The research also discovered other potential benefits, such as reducing the likelihood of certain cancers or autoimmune ...

A double-blind randomized phase 3 clinical trial led by Dana-Farber Cancer Institute researchers and conducted across several hundred cancer centers in the U.S. tested the addition of high-dose ...

For patients with metastatic colorectal cancer, adding a higher dose proves just as effective as the standard dose of vitamin D3, despite one exception. In patients with metastatic (spreading) ...

Study title: SOLARIS (Alliance A021703): A multicenter double-blind phase III randomized clinical trial of vitamin D combined with standard chemotherapy plus bevacizumab in patients with previously ...