Iodine and Your Immune System

Iodine has some pretty amazing and unique effects on the immune system. Here’s what you need to know.

0:14 The basics of iodine 
0:58 Iodine and the thyroid 
1:20 Iodine deficiency 
2:33 Estrogen and iodine 
3:14 Pregnancy and iodine 
3:48 Iodine and the immune system 

Today we’re going to talk about iodine and immune system health. I’ve talked a lot about important nutrients like zinc, vitamin D, and vitamin C in relation to the immune system. But I haven’t talked about iodine. Iodine has a unique influence on the immune system. 

You need about 150mcg of iodine per day. Many people, around 2 billion, are deficient in iodine. Sea kelp seems to be the best source of iodine, but there are other great iodine sources as well. 

The best iodine-rich foods are:
• Sea kelp
• Shellfish
• Fish 
• Eggs
• Dairy 

Iodine is needed for the thyroid. The thyroid is the gland that stores iodine and helps make thyroid hormones. If you’re deficient in iodine, your thyroid stimulating hormone can go up. Thyroid stimulating hormone has a few different functions. One would be that it causes the thyroid to get bigger. Another function is that it increases the release of the thyroid hormone T4, which can then be converted to T3. 

Something else that messes with the thyroid is estrogen. It just so happens that iodine is a great mineral to help lower high levels of estrogen. 

Iodine and all of the trace minerals are very important for pregnant women. If a pregnant woman is deficient in iodine, there could be massive problems for the child, including:

• Intellectual disabilities 
• Deafness 
• Stunted growth 

Iodine and the immune system:

1. Enhances dendritic cells 
2. Supports B-cell development 
3. Helps stimulate phagocytes 
4. Enhances natural killer cells 
5. Enhances cytokines 
6. Good for memory cells 

Dr. Eric Berg DC Bio:
Dr. Berg, age 55, is a chiropractor who specializes in Healthy Ketosis & Intermittent Fasting. He is the author of the best-selling book The Healthy Keto Plan, and is the Director of Dr. Berg’s Nutritionals. He no longer practices, but focuses on health education through social media.


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Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients so he can focus on educating people as a full time activity, yet he maintains an active license. This video is for general informational purposes only. It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, and prescription or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. The Health & Wellness, Dr. Berg Nutritionals and Dr. Eric Berg, D.C. are not liable or responsible for any advice, course of treatment, diagnosis or any other information, services or product you obtain through this video or site.

Thanks for watching! I hope this helps you better understand the relationship between iodine and your immune system.
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