Fact checked by Jennifer Klump Cold and flu season often sends people searching for quick immune fixes, but small, ...

Leading medical experts reveal that quick-fix tablets and vitamin drinks are largely ineffective, and the only real way to ...

Supplements that can help you stay physically and mentally healthy during the winter include vitamin D, zinc, vitamin C, and ...

Learn which supplement is best for preventing and treating respiratory viruses, how to take them, and side effects to watch for.

We don't yet know if vitamin D supplements can boost your immune system, as research on the topic has shown mixed results. If you want to try vitamin D supplements for better immune health, your ...

It's essential to get enough vitamin D to keep your immune system strong. But does it matter when exactly you take it?

Here’s what doctors have to say.

A vitamin A byproduct could weaken the immune system's cancer-fighting ability, according to new Princeton University ...

Recent immunology research has unveiled the complex relationship between vitamin D and immune system function. This vital nutrient is involved in the development and function of the immune system, ...

Add Yahoo as a preferred source to see more of our stories on Google. Your body can’t make vitamin A on its own, so it relies on certain foods or supplements to get it. (Getty Images) (anilakkus via ...

Experts share which to stock up on this cold and flu season.

A vitamin A byproduct has been found to quietly disarm the immune system, allowing tumors to evade attack and weakening ...