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Generally, its difficult to say precisely how long a vitamin B12 shot lasts in the body
While B12 plays a role in energy metabolism and red blood cell production, it's important to note that supplementation will only improve energy levels in people with an existing deficiency
Seek the advice of your doctor before proceeding - s/he will be able to help you assess your condition and goals to determine whether testosterone is right for you
Within the Vitamin B complex, there are several members, including Vitamin B1 (thiamine), Vitamin B2 (riboflavin), Vitamin B3 (niacin), Vitamin B5 (pantothenic acid), Vitamin B6 (pyridoxine), Vitamin B7 (biotin), Vitamin B9 (folate), and notably, vitamin B12 (cobalamin)
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