Vitamin A and Your Immune System

Vitamin A and Your Immune System

Update: 2020-06-01
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In this podcast, I want to talk to you about vitamin A and your immune system. Now, I’ve done plenty of other videos on the role of zinc, vitamin D, and vitamin C in the immune system, but I haven’t touched on vitamin A yet. 


Vitamin A is an essential part of the immune system. A vitamin A deficiency will leave your body susceptible to infections—especially in the respiratory system, including your lungs, sinuses, and throat. 


You need vitamin A for your mucous membranes. In particular, vitamin A is required for the creation of mucin. Mucin is an essential part of the mucus membrane. 


Vitamin A is also involved in the epithelial layer and lymphatic system layer. Each of these acts as a barrier for microbes. 


When pathogens enter the body, your body triggers macrophages. These are large phagocytic cells that consume pathogens and clean up other harmful debris. Macrophages are your body’s first line of defense against infection. 


Your thymus gland, which is right above the heart, helps train your immune cells. The thymus can actually activate and synthesize vitamin A. 


Vitamin A is also required for dendritic cells and neutrophil traps. 




When you’re low in vitamin A, your risk increases for:


• Ulcerative colitis 


• MS


• Psoriasis


• Lupus




How can you get more vitamin A? The best source of vitamin A are:


• Beef


• Liver


• Cod liver oil


• Mackerel 


• Salmon


• Goat cheese


• Butter


• Cream cheese


• Eggs


• Vegetables (pre-vitamin A in carotenoid form)




Dr. Eric Berg DC Bio:


Dr. Berg, 51 years of age is a chiropractor who specializes in weight loss through nutritional & natural methods. His private practice is located in Alexandria, Virginia. His clients include senior officials in the U.S. government & the Justice Department, ambassadors, medical doctors, high-level executives of prominent corporations, scientists, engineers, professors, and other clients from all walks of life. He is the author of The 7 Principles of Fat Burning.




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Vitamin A and Your Immune System

Vitamin A and Your Immune System

Dr. Eric Berg