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Friday, September 23, 2016

Do You Know These Sources of Vitamin B-12?

Do You Know These Sources of Vitamin B-12?

You might not know it, but you owe your life to bacteria. That’s because they are the only creatures on the planet that create vitamin B-12, a vitamin you cannot live without. If you become deficient in B-12, your mental health suffers, your metabolism slows, you feel fatigued, and you can develop heart disease, osteoporosis, and anemia. Suffice to say, it’s important you get enough and of the right type.


5 Sources of Vitamin B-12

Curious as to what’s the best sources of vitamin B-12? Here’s a list of the top 5 sources of B-12.

1. Food

Vitamin B-12 occurs naturally in meat, dairy, fish, and poultry. According to the USDA, the richest forms of natural B-12 come from clams, beef liver, trout, salmon, tuna, milk, yogurt, and cheese. [1] And since your body can only absorb as much B-12 as your body produces intrinsic factor (a protein that makes B-12 digestion possible), you need to get plenty of these foods if you’re not vegan. There are no plant sources for vitamin B-12. So for vegans and vegetarians, deficiency can be a problem. But they are not the only ones suffering from B-12 deficiency. It’s estimated 40% of the American people are B-12 deficient. [2] So for many, it’s time to turn to other sources.

2. B-12 Shots

B12 injections have been used in place of dietary B12 to treat extreme B12 deficiency and to deliver B12 in cases where the body no longer makes intrinsic factor, such as with the condition known as pernicious anemia. These shots deliver B12 in the form of cyanocobalamin or hydroxocobalamin These are medicinal forms of B12. While B12 shots do provide an effective dose of the vitamin, they come with two drawbacks.

One, who wants to get a shot? Also, the shot commonly delivers cyanocobalamin, a form of B-12 the liver must break down before it can be used. This process steals methyl groups from the body (read more about methylation here) and forces the body to deal with toxic cyanide molecules. Not such an appealing option anymore, is it?

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3. B-12 Gels

Another medicinal form of B-12 comes in the form of an intranasal gel. You rub this gel on the inside of your nose, absorbing through the membranes in your nose directly into your blood. One study found 90% of veterans treated for B-12 deficiency preferred the gel to the shot. [3]

4. B-12 Supplements

You can find a wide variety of vitamin B-12 supplements on the market. One of the most common forms is a vitamin B complex. This supplement form usually comes in tablets and includes all eight of the B vitamins. The downside for B-12 in this form is again the use of cyanocobalamin. The cyanide molecule may make it more stable for tablet delivery, but does introduce an added toxin the liver must deal with. The best B-12 supplements will offer a blend of the bioactive, coenzyme forms of vitamin B-12 — methylcobalamin and adenosylcobalamin. Read more

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