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While high-dose B12 is generally safe, its still important to use supplements thoughtfully and pay attention to any unusual symptoms
Its smart to keep an eye on B12 levels to adjust treatment as needed
Just do not inject into a thigh muscle immediately after a leg workout
Because not everyone is a good candidateespecially pregnant or breastfeeding individuals or those with certain medical conditionsits important to speak with a healthcare professional first
Cold compresses and antihistamines may help reduce these symptoms
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