Medically reviewed by Jonathan Purtell, RDN The best time to take vitamin C to boost your immune system is with meals ...

The recommended amounts of vitamin C vary by age and are measured in milligrams (mg). Vitamin C deficiency is rare in the United States, and while taking too much vitamin C isn't dangerous ...

One of the brand’s bestselling products is its Vitamin C tablets, which are gluten-free as well as free from preservatives and artificial colors and flavors. Each tablet has 1,000 mg of vitamin ...

The Food and Nutrition Board at the National Academies recommends 75 to 90 mg of vitamin C a day for adults ... which can give you as much as 1,000 mg of vitamin C in a single packet — that's ...

A 2017 review published in Biomed Research International found that taking 1 gram (1,000 mg) of vitamin C per day reduced the duration of a cold by 8% in adults and 18% in children. And while it ...