Weekly or biweekly schedules are common but timing varies by client needs
A high vitamin B12 blood level is possible
While this represents a reasonable duration for clinical trials, it provides limited information about safety with years-long continuous use
Without intrinsic factor, people develop vitamin B12 deficiency, with symptoms such as fatigue, a distinctive change in red blood cells, nausea, indigestion and other digestive problems, weakness, headaches and weight loss
For individuals looking for a budget-friendly option,a B12 energy shot may be a more economical choice, especially if thats the only nutrient and individual is looking for and their hydration needs are already met