Increased Protection from Bacterial and Viral Infections - Vitamin A is essential for healthy surface linings of the eyes, mucous membranes, respiratory, urinary, and intestinal tracts.
Proper Immune Functioning - Vitamin A is essential to regulate the immune system, and plays a key role in making white blood cells which fight off infections in the body.
Cancer Protection (*Food Sources Only) - Studies suggest beta-carotene and vitamin A lower risk of many types of cancer.10 This effect could mainly be from a diet high in vegetables and not from supplements. Vitamin A supplements have been shown to increase risk of cancer.
High Risk Groups for a Vitamin A Deficiency
Alcoholics - Excessive consumption of alcohol can deplete levels of vitamin A in the body, and even moderate consumption can interfere with vitamin A absorption.
People with Long Term Problems Absorbing Fat - Problems absorbing fat in the long term can lead to diarrhea and vitamin A deficiency. This includes people with: Celiac disease - Gluten Intolerance
Crohn's disease - Inflammatory Bowel Disease
Pancreatic disorders - The pancreas releases enzymes for proper digestion of fats
Cystic Fibrosis - Leads to a pancreatic disorder and improper absorption of fats