ArticleThe Journal of nutrition2025
Dietary Amino Acids and Risk of Stroke Subtypes: Results from 3 Large Prospective Cohort Studies.
Article in The Journal of nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Amino acids: Missing link in preeclampsia pathogenesis?European journal of nutrition · 2026Observational
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9 authors.
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Abstract
backgroundDifferences in dietary protein have been associated with stroke risk, with possible heterogeneity in associations by stroke type or food sources of protein.
objectivesWe examined the associations of individual dietary amino acids, as the constituents of dietary protein, with risks of ischemic, hemorrhagic, and total stroke.
methodsWe analyzed data from 73,830 females in the Nurses' Health Study (1984-2012), 92,333 females in the Nurses' Health Study II (1991-2013), and 43,268 males in the Health Professionals Follow-Up Study (1986-2016). Dietary intakes of 22 (20 standard and 2 nonstandard) amino acids were assessed using validated food frequency questionnaires, administered typically every 4 y. Multivariable-adjusted Cox regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of ischemic, hemorrhagic, and total stroke in relation to the energy-adjusted intakes of individual amino acids.
resultsDuring a mean follow-up of 23.7 y, 3058 ischemic, 872 hemorrhagic, and 5997 total stroke cases were documented. After correction for multiple testing, lower risks of ischemic stroke were observed with higher intakes of glutamine (HR per 1 standard deviation higher: 0.94, 95% CI: 0.90, 0.98, P = 0.004) and proline (0.94, 0.90, 0.98, P = 0.005). The associations remained directionally consistent across sensitivity analyses but attenuated upon mutual adjustment. All other amino acids, including branched-chain amino acids, were not significantly associated with ischemic stroke. For hemorrhagic stroke, no significant associations were observed for any of the amino acids. For total stroke, inverse associations were also observed for both glutamine (0.94, 0.91-0.97, P < 0.001) and proline (0.96, 0.93-0.99, P = 0.004). In terms of dietary sources, glutamine was most strongly correlated with plant protein and whole grains, whereas proline was most strongly correlated with dairy protein and dairy products.
conclusionsHigher intakes of glutamine and proline were associated with lower risks of ischemic and total stroke.
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