In one published case, an active, lean-adjacent man lost about one-third of his total weight as muscle on 2.5 mg and recovered it after adding resistance training and increasing protein. This is a cautionary case, not an incidence estimate
For everyone else, tablets can still maintain healthy B12 levels
Do not freeze the vial, and do not use the solution if it looks cloudy, discolored, or contains visible particles
The cycle is 30 days on, 30 days off
Dosage: 1 ml per week or, 2 x per week for accelerated benefits FAQ on Methylcobalamin (B12) Injections: FAQ on Methylcobalamin (B12) Injections: What is Methylcobalamin, and how is it different from other forms of Vitamin B12