can you inject your own b12 Vitamin Injection Sites: All Need to Know How to Inject Vitamin B12
Description
Gummy vitamins provide a palatable option, though they often contain added sugars and may deliver less B12 per serving

However, these side effects are usually mild and temporary

"Vitamin B-12 and homocysteine status in a folate-replete population: results from the Canadian Health Measures Survey"

Limited data indicate vitamin B12 deficiency may contribute to menstrual irregularities (but more study is needed)
