The NIH Office of Dietary Supplements published a fact sheet in March 2025 reviewing the evidence behind vitamins C, D, and A ...

Recent studies have shown that even if you feel healthy and fit, your immune system could be aging quicker than you think, which could increase the risk of infections and immune-related disorders.

Though there are several immunity-boosting foods, a diet rich in citrus fruits has proved it can support your immune system and fight infection. Known for their vitamin C content, citrus fruits like ...

Q. Is it really possible to “boost” your immune system, or is that a myth? A. When flu season hits or stress runs high, you’ll often hear advice on how to “boost” your immune system. But here’s the ...

We're officially in respiratory virus season, and it's expected to last through mid-May. There are ways to protect against viruses like Covid-19, influenza and RSV naturally. Mandy Gaither explains ...

Vitamins and supplements like zinc and cod liver oil are often touted for their ability to boost your immune system, but Jeffrey Bland, the "father of functional medicine," says that's not actually ...

Trillions of microbes live in the human gastrointestinal tract, where they play critical roles in our health and biology; they can help us break down food, absorb nutrients; and they affect the immune ...

There’s a lot of truth to the adage “food is medicine.” While medications are certainly important and necessary, there is a direct relationship between diet and immune health. Nutrients both directly ...

(CNN) — The holiday season can be intense. People are traveling, hosting family and friends, and going to events — all the while keeping up other responsibilities of work and caregiving. (CNN) — The ...