can vitamin b12 injections cause headaches Side Effects Why Do I Feel Worse

Recent experimental studies demonstrated that micronutrients may impact the activity of presynaptic neurons or the synthesis of sleep-regulating neurotransmitters, including serotonin, glutamate, and melatonin [14]

Heavier individuals may require higher doses to achieve equivalent NNMT inhibition due to larger adipose tissue mass and potentially higher baseline NNMT activity

more exercise makes the body more sensitive to insulins actions

For example, while many people with Alzheimers disease are found to have low vitamin B12 levels, there is no improvement in cognitive function after supplementation with high doses of vitamin B12

Safety and Considerations While B12 injections are generally safe, its important to receive them from qualified professionals