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 ...

How much: Recommended dietary allowance (RDA) = 8 milligrams (mg) daily for men; 18 mg daily for women until menopause; 8 mg for women after menopause. Iron supplements can cause constipation, nausea ...

A person can increase their body’s iron absorption from plant-based products by consuming them alongside foods rich in vitamin C. Spinach contains approximately 30 mg of calcium per cup.

The fruit contains a large amount of vitamin C. It should be taken in amounts that provide no more than 2000 mg of vitamin C daily. Higher doses can increase the risk of side effects such as ...