Can Magnesium help with allergy?

Based on the provided context, there is no direct evidence addressing whether magnesium helps with allergies. General scientific knowledge suggests magnesium may influence allergic responses through modulation of histamine release and inflammatory pathways, but this is largely mechanistic and not supported by strong human trials. Some observational studies hint at a link between low magnesium intake and higher allergy prevalence, but findings are mixed and not conclusive. Without measuring individual magnesium status (e.g., serum magnesium or RBC magnesium), supplementation is not warranted and could cause adverse effects like diarrhea. The context lacks specific studies or guidelines on magnesium and allergy. Therefore, the evidence level is 'unclear'. For personalized advice, consult a healthcare provider and consider testing magnesium levels first.