Key clinical point: High dietary potassium intake is associated with a decreased risk for migraine, with an L-shaped correlation between dietary potassium intake and migraine highlighting an inflection at ~1,439.3 mg/day.
Major finding: Participants in the second quartile (potassium intake 1771-2476 mg/day) vs first quartile (potassium intake ≤ 1771 mg/day) showed a lower risk for migraine (adjusted odds ratio 0.84; P = .021), which suggested an L-shaped (non-linear) association between dietary potassium intake and migraine ( P = .016), with an inflection at ~1439.3 mg/day.
Study details: This cross-sectional study included 10,254 participants age ≥ 20 years, of whom 2065 (20.1%) had migraine.
Disclosures: This study did not receive any funding. The authors declared no conflicts of interest.
Source: Xu L et al. Association between dietary potassium intake and severe headache or migraine in US adults: A population-based analysis. Front Nutr. 2023;10:1255468 (Sep 15). doi: 10.3389/fnut.2023.1255468