I often hear about how changing your diet can heal a leaky gut and that is true. However, vitamin D3 at optimal dosing changes your appetite. That change results in you increasing the amount of helpful foods like fiber and lowering the intake of harmful foods that may include sugars, saturated fats and dairy. 

Also, leaky gut is thought to be caused by in some from either small intestinal bacterial overgrowth (SIBO) or autoimmune diseases that target the gut. Well vitamin D3 as I have written before boosts your immune system. 

That boost is perhaps having no more important function then in how it improves the make up of the gut flora. Also, what organisms if any can enter our body especially through the gut. As our immune system influences what grows there which then influences how well we fight off bad microbes and promote good ones. 

It also affects the severity of the autoimmune disease by its effect on both overall health and the immune system. So, I sound like a broken record, but it is all related. With pesticides, antibiotics and plastics to name just a few. I recently read we eat an average of a credit card of plastic a week.

Also, that they have found man made plastic waste at the bottom of the Mariana Trench, one of the most inaccessible places in the world. Yea it is the lowest point of the world so only makes sense that plastics would end up there. 

The point is almost if not every organism in the world is ingesting some man made plastics. What will be the effects of this and what does this have to do with vitamin D3? A lot I believe. In my opinion and confirmed the more I research I do is our gut health is key to our physical and mental health. 

The inside of the gut, its contents, must be separated from our blood and lymphatic systems. The lymphatic is how we absorb fats. A strong gut cellular layer separating the contents from our blood, interstitial fluid (the liquid that surrounds blood cell as well as most cells in the body) must be strong. 

As there are two main states of the spaces between cells in the gut inner lining. They are either gaps or buttons. 3 A healthy gut has buttons. An unhealthy one has gaps. When buttons are present the body can much better control what enters these three fluids. 

As there the spaces between those cells is closed. When there are gaps that is not the case. Substances can more easily be absorbed into the body. Into the interstitial fluid and possibly into the lymphatic system. Though with lymphatic system I am not sure. I will also research this too. 

As once in any of the substance get past this initial cell layer it is then more easily moved through out the body. In the case of the blood (the blood cells and interstitial fluid in the veins and arteries from the gut does pass via the portal vein through the liver which offers a third line of defense. 

This should give you an idea as to how important is separating the gut contents from the rest of the body. I recently read that companies are racing to find and market all the important microbes lurking in our guts. That scares me. As all we need is to have big pharma engineer microbes with limited life spans such that we must yearly renew our “subscription” to what is essentially ours.   

*The information posted above is for educational purposes only. Always check with your doctor before initiating any changes in your medical treatment. If you do not, then The Two-Minute Health Fact, Dr. Judson Somerville, nor The Optimal Dose is responsible!


Darlene Scott · June 6, 2020 at 5:02 pm

what about vitamin k2 with the extra D3

Victor Huddleston · June 26, 2020 at 3:45 pm

Hi Dr. Judson, I just wanted to let you know that I read your book last night and then again this morning. I have many of the symptoms that you mentioned in the book and some that you didn’t mention. I really want to start taking vitamin D3 as soon as possible, but I’m not sure about how to get started. Should I just jump in with both feet and start with 30,000 IU daily, or should I start with a lower dose and work up to the optimal dose? I really feel like this may be my last chance to regain my health. I have been asking my doctors to help me for several years now and we have tried a lot of things, but now they are just scratching their heads. I’m 68years old and I’m feeling pretty hopeless. It’s time for a hail-mary. Thanks for your time Dr. Judson I know you must be a very busy man.

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