Common side effects include injection site reactions (burning, pain, swelling, redness), headache, mild diarrhea, and upset stomach
Vitamin B12 shots are shots that provide your body with a straight, high-dose level of vitamin B12
Because the pancreas provides critical enzymes, as well as calcium required for vitamin B 12 absorption, pancreatic insufficiency may contribute to vitamin B 12 deficiency
That said, consulting with a healthcare provider is the best way to determine the frequency of B12 injections that's right for you
For Lebers optic atrophy or smokers blindness, the usual dose starts at 1000mcg, given daily for 2 weeks, followed by twice weekly
Gastrointestinal issues: Conditions such as Crohn's disease, celiac disease, and irritable bowel syndrome (IBS) can damage the digestive tract making it harder for the body to absorb nutrients, including B12