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Put the needle straight into the muscle at a 90-degree angle
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Low levels can cause a loss of balance, numbness or tingling in the arms and legs, weakness, fatigue, constipation, confusion, depression, poor memory, soreness of the mouth or tongue, weight loss, and a type of anemia known as megaloblastic anemia
This is likely due to the role of vitamin B12 in energy production and metabolism
Detcheverry, F., Senthil, S., Narayanan, S., & Badhwar, A
If your levels are low, youll likely feel a gradual improvement in your energy and overall mood over the following days and weeks as your body puts the vitamin to use
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