Brasky TM, White E, Chen CL
Common reports include injection-site stinging, nausea, headache, flushing, and short-term fatigue
Symptoms of a B12 deficiency include: Excessive fatigue Nerve problems (pain or abnormal sensations like numbness or tingling) Glossitis (tongue inflammation) Low numbers of white blood cells and red blood cells Vitamin B12 deficiency can be diagnosed with a blood test
The Cost-per-Milligram Math The most useful concept when choosing an NAD+ format is cost per milligram
Vitamin B-12 deficiency can occur after GI or pancreatic disease
MTHFR and Vitamin B12 Absorption The MTHFR genetic mutation has a negative effect on B12 absorption, with studies showing an increased prevalence of low blood levels of vitamin B12 in those with the mutation