Micronutrients and malnutrition - Vitamin B12 deficiency and toxicity

Micronutrients and malnutrition - Vitamin B12 deficiency and toxicity

By Heruvim78 | The longevity gene | 15 Dec 2020


There are several cases for vitamin B12 deficiency, but the most common cause is malabsorption. Older adults with atrophic gastritis, people with stomach and small intestine disorders (coeliacs and Crohn's disease) and people who had gastrointestinal surgery may be unable to absorb enough B12 from food. Weight loss surgery may remove some parts of the stomach, losing the cells that secrete HCL and intrinsic factor. Surgical removal of ileum leads to inability to absorb vitamin B12. 

Vegans are also at risk of B12 deficiency, as plant based meals lack B12 vitamins, and strict vegans are more at risk than lacto-ovo-vegetarians, as milk, dairy and eggs have some B12. Pregnant and lactating women, and their infants are at risk if they are strict vegans, as B12 crosses placenta and goes into breast milk, so they need to take supplements. Undetected B12 deficiency in children leads to severe and permanent neurological damage.

And to close with a good news, there is no toxic or adverse effect with vitamin B12 from food or supplements. 

The next post I will talk about the remaining B vitamins (thiamine, riboflavin, niacin, pantothenic acid, B6 and biotin).

 

Yours truly, 

George

 

P.S. If you are Romanian, you can also publish your post link in the Publish0x Romanian Community Facebook group for others to read it. 

 

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Disclaimer: This text is also re-published on my personal blogs, such as this one.

 

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Heruvim78
Heruvim78

I am a writer, gamer, healthcare professional. I am.


The longevity gene
The longevity gene

And when i say longevity i mean a bigger health span, as opposed to the well known life span. It is not enough to live longer, if you are not healthy, so do not forget what our immortal James Dean said: 'It is important to die young, but as late as possible!'. I will explore many unorthodox ways, ranging from gut microbiota manipulation to ancient Ayurveda ritual, trying to combine them in an ample resource, from which you can get and apply whatever is better for you at the present moment.

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