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High doses of B12, often used to treat deficiencies, may cause side effects such as headaches, nausea, diarrhea, fatigue or weakness, and tingling in the hands and feet
Many foods have natural sources of vitamin b
Several drugs, including para-aminosalicylic acid, have been reported to reduce the absorption of methylcobalamin, vitamin B12
however, anytime you receive an injection theres a slight risk of allergic reaction
This area is easy to access, making it ideal for individuals who prefer to administer their injections at home
Most individuals experience little to no side effects
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