US$ 21.55
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Description
PMC 3485949

Vitamin B12 deficiency is a common problem that everyone encounters

However if your B12 is already borderline that could be enough reason for you to avoid it

Whether you are lactose intolerant, eat a vegan diet, or dont have a lot of exposure to sunlight, you may be low on the essential Vitamin D

An injection places B12 into the muscle, where it bypasses the digestive step that some bodies struggle with

Reduce training volume by 20-30% compared to maintenance-calorie periods
