A study published in the Indian Journal of Psychological Medicine reported a case of vitamin B12 deficiency in a 29-year-old woman, where obsessive-compulsive disorder (OCD) was the early manifestation, preceding anemia
Pregnant or breastfeeding women should not take 5 Amino 1MQ
Mild headaches for a week might be acceptable
20 Weeks of Medication
It is likely that the larger number of statistically significant changes to the microbiome observed in the groups switched from WD to LD reflects their more numerous exposures to different diets, longitudinal changes in dietary exposure, the stress associated with diet switch, the negative energy state achieved by treatment and/or diet-driven weight loss, or a combination of these factors, but it may also be related to differences in terminal body weight and fat mass since both adiposity and diet composition have been shown to modulate the mouse gut microbiome profile
Because vitamin B12 is water-soluble, your body simply excretes any excess it doesnt need, which makes it very low-risk