askorbat

Askorbat refers to the salts and esters of ascorbic acid, commonly including sodium ascorbate and calcium ascorbate. It is the anionic form of vitamin C and is widely used as a dietary supplement and as a food additive due to its stability and antioxidant properties.

Ascorbate plays several roles in human biochemistry. Humans cannot synthesize vitamin C and must obtain it from the diet. Ascorbate acts as an antioxidant, helping to neutralize free radicals. It also serves as a cofactor in enzymatic reactions important for collagen synthesis, carnitine production, and certain neurotransmitter biosyntheses. It enhances dietary iron absorption and supports wound healing and immune function.

In foods and pharmaceuticals, askorbat is used to prevent oxidation, preserve color and flavor, and extend shelf life. As a supplement, it provides vitamin C in a form that may be gentler on the stomach for some individuals, whereas the acid form is more acidic. Its salts are often chosen for formulation stability and taste considerations.

Safety and regulation follow general vitamin C guidelines. For adults, upper intake levels are typically around 2,000 mg per day to avoid adverse effects such as gastrointestinal discomfort and a potential theoretical risk of kidney stones in predisposed individuals. Most people meet daily needs through a balanced diet that includes fruits and vegetables. Askorbat is present in many processed foods as an antioxidant and nutrient fortification, and is available as an over-the-counter supplement in various salt forms.