A doctor may recommend vitamin B12 shots for people at risk of a deficiency or its complications, particularly if they are unable to take oral supplements
While oral B12 is widely available, its not always the most effective, especially for individuals with absorption issues (like those with digestive disorders or older adults)
If you are pursuing performance or physique goals in a competitive setting, consider WADA-compliant alternatives such as Cardarine (GW-501516) for endurance or AOD-9604 for fat loss both of which should still be verified for status with your sports anti-doping authority
Vitamin B12 Injection Dosage for Adults in ML The dose of vitamin B12 for adults is usually in micrograms (mcg)
In a randomized, placebo-controlled intervention study with more than 900 older participants experiencing psychological distress, daily supplementation with folic acid (400 g) and vitamin B 12 (100 g) for two years did not reduce the occurrence of symptoms of depression despite significantly improving blood folate, vitamin B 12 , and homocysteine levels compared to placebo (109)