reaction to vitamin b12 injection What Happens When You're Allergic Vitamin B12 Injection Dosage for

It is important to check for coexistent folate and iron deficiency

REFERENCES Manifestations of fatigue that may occur when status or supplies of these micronutrients are not adequate. Consuming adequate intakes of vitamins and minerals contributes to maintenance of normal cognitive function and to enhanced well-being by decreasing perceived mental and physical fatigue and favoring positive mood

Diet and lifestyle : Vegans, vegetarians, and those with low animal protein intake may metabolize B12 differently

It contains inositol, choline, vitamin B6, vitamin B12, and methionine (a sulfa-free version without methionine is also available)