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The nausea, fatigue, and constipation that people experience when they start too high (1-2mg) are almost entirely avoidable by starting conservatively
Use an open container within 3 to 5 days in the refrigerator, 1 to 2 days in a cold room, or a few hours in a warm room
Vitamin B12 is an essential water-soluble vitamin that can be acquired through injections, vitamins, and eating enough meat, poultry, seafood, dairy products, and eggs
Recent research suggests that it may have positive effects on kidney function as well
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