can b12 injections cause stomach issues Vitamin and ulcerative colitis: Links and more Vitamin B12 Side Effects Stomach:

Methylcobalamin is often considered the better option because it is already in its active form

Thus, low vitamin B12 levels may contribute to obesity

However, certain drugs may affect how your body uses B12, making injections particularly beneficial

If you're delving into the realm of health and wellness, you might have stumbled upon the buzz surrounding B12 injections

A separate meta-analysis that pooled results of trials in older adults with mild cognitive impairment found B-vitamin supplementation (6 to 24 months, depending on the trial) had no benefits on various cognitive parameters, including executive function, information processing speed, and episodic memory (90)