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

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

Taking supplements is often touted as a way to boost the immune system, but Jeffrey Bland says that's not possible. Here's ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Really, one of the best ways to keep your immune system healthy is also one of the simplest: by ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Really, one of the best ways to keep your immune system healthy is also one of the simplest: by ...

Winter calls for juicy defense. From guavas to oranges, these winter fruits are packed with immune-boosting power — and ...

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 ...

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

Our Immune systems are essential, precious and fragile so it is good advice to take good care of them. A healthy immune system can protect us from disease and illness and help fight infections. Good ...

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 ...