Vitamin C, also known as absorbic acid, may be the most commonly used vitamin. It is a water soluble vitamin (dissolves in water) that serves several functions. The benefits of vitamin C include:
Dosage – Common doses of vitamin C are between 500 mg and 4 grams per day. A deficiency can lead to scurvy (loose teeth, excessive bleeding, and swollen gums), and bruising.
When taken in excess (over 10 grams per day), kidney stones and diarrhea may occur, as well as increased urination and skin rashes. If any of these symptoms occur, simply cut back on the intake.