Potential Side Effects and Considerations While vitamin B12 injections are generally safe, some people may experience mild side effects, such as soreness at the injection site or a slight rash
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Some treatments, like B12 or fat burner injections, can be scheduled weekly or monthly for optimal benefits, while others may require only one or two sessions
Bright yellow urine may result from excessive vitamin B2 (riboflavin), but this is usually harmless and doesnt mean you need to stop taking the vitamins
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Take your Vitamin B12 in the morning when you first wake up