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Dietary Sodium and Migraine
Headache; ePub 2016 Mar 26; Pogoda, Gross, et al
There may be an inverse relationship between migraine and dietary sodium intake that affects brain extracellular fluid sodium concentrations and neuronal excitability, according to a study of 8,819 adults with reliable data on diet and headache history. Researchers found:
• Odds of probable migraine history decreased with increasing dietary sodium intake (OR=0.93).
• The relationship was maintained, with slightly reduced significance, after adjustments for age, sex, and body mass index (BMI).
• In women, the inverse relationship was limited to those with lower BMI, while in men the relationship did not differ by BMI.
• Researchers likely excluded some migraineurs by omitting frequent analgesic users; but a sensitivity analysis suggested little effect from the exclusion.
Citation: Pogoda JM, Gross NB, Arakaki X, Fonteh AN, Cowan RP, Harrington MG. Severe headache or migraine history is inversely correlated with dietary sodium intake: NHANES 1999–2004. [Published online ahead of print March 26, 2016]. Headache. doi:10.1111/head.12792.
