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Human clinical data remains limited for both forms
Sterile water lacks a preservative, so its highly susceptible to bacterial contamination once opened
IM injections cost between $40-70 as a low dose option
Signs and symptoms: Many common symptoms can be caused by vitamin B12 deficiency, including weakness, tiredness, lightheadedness, heart palpitations, shortness of breath, pallor (pale skin), diarrhea, decreased appetite, nerve problems like numbness or tingling, visual changes and psycho-emotional problems like depression, memory loss or behavioral changes
US$ 21.63
US$ 20.80
US$ 24.78
US$ 24.20
