Vitamin C: How Much Is Enough?
How much Vitamin C do we really need?
The RDA for vitamin C is set at 90 mg a day for men and 75 mg daily for women. Besides supporting immune function, this vitamin improves heart health, is a building block for collagen needed for skin, gastrointestinal and joint health, and has been shown to kill certain cancer cells among other functions.
Additionally, besides getting vitamin C from food sources, you can either take it orally in supplement form or have it administered intravenously. How you get it determines how much you need. When taken orally, which is typically the …