b12 injection red rash Strange Rash/ Low : r/B12_Deficiency High Vitamin B12 Levels: Causes,

An anti-ghrelin vaccine was found not only to reduce appetite by decreasing hypothalamic orexigenic signals but also to increase energy expenditure in rodent and pigs (250)

Low levels can lead to various health issues

During gastric bypass, the duodenum is entirely bypassed, as well as the distal stomach and proximal jejunum, contributing to potential vitamin and mineral deficiencies

A lack of B12 may also cause gas and constipation to occur

I took one of those every day for a year and didnt have any issues

May help treat depression Vitamin B12 plays a role in serotonin production, so a deficiency may be linked to depression