Vitamin C (L-ascorbic acid)

Vitamin C is an essential dietary nutrient that is found at high levels in fresh fruits and vegetables, especially citrus fruits. It is required as a co-factor for many enzymes^.^* Because it is a water-soluble vitamin that is not well stored, adequate amounts must be maintained through food or supplements^.1^,²

Properties and mechanism of action

In addition to promoting collagen biosynthesis, vitamin C is an important antioxidant that protects cells from the effects of free radicals.^2* By supporting epithelial barrier function, vitamin C may also protect against environmental oxidative stress.^3*

Vitamin C is maintained at high levels in most immune cells^.3* Supplementation with vitamin C is helpful in promoting respiratory health^.3*

Scientific support

Scientific studies have shown the efficacy of vitamin C in supporting the immune system and promoting overall health—especially respiratory function.^3*

^{*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.}

Ingredient details are provided as general information and are not intended to be associated with any specific Zarbee’s® products.

References:

^{1. Vitamin C Fact Sheet for Health Professionals. National Institutes of Health. Updated February 27, 2020. Accessed July 7, 2021.}^{https://ods.od.nih.gov/factsheets/VitaminC-HealthProfessional/}

^{2. Jacob RA, Sotoudeh G. Vitamin C function and status in chronic disease. Nutr Clin Care. 2002;5(2):66-74. 3. Carr AC, Maggini S. Vitamin C and immune function. Nutrients. 2017;9(11):1211.}