Vitamin B12 deficiency has been linked to fatigue, tingling or loss of feeling in the extremities, irritability, memory impairment, depression, anemia, irritable bowel syndrome (IBS), constipation, poor wound healing, dry or damaged looking skin, and neurological disorders
Gode V, Bhalla N, Shirhatti V, Mhaskar S, Kamath Y (2012) Quantitative measurement of the penetration of coconut oil into human hair using radiolabeled coconut oil
Always follow your doctors instructions and never combine medications without approval
What did it reveal
2015 Nov;11(11):639-48 Kim SH, Jang TJ, Moon IS
However, individual reactions and side effects may vary, and some people have reported hair shedding while on treatment