How much vitamin C you need per day depends on your age, sex, pregnancy and lactation status, and if you smoke. Here are the guidelines and general limits.

Feeling under the weather, whether it’s a stuffy nose, cough or sore throat, can leave us scrambling for relief. Once our immune system takes a hit, we often feel defeated and wish we had supported it ...

It's true that vitamin C can give your immune system a boost, but when it comes to treating or preventing colds, things get a ...

Discover the best dietitian-recommended vitamin C supplements ideal for boosting immunity, supporting skin health, and ...

"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 ...

Vitamin B12 is a vital nutrient that plays numerous key roles in maintaining health. It is available in different forms and can be found in both food and supplements. A recent review suggests that the ...

"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 ...

Please provide your email address to receive an email when new articles are posted on . Research indicates that zinc may offer benefits for immune health, but the evidence is not conclusive. Other ...