1 paper2 findings
Mortality
downin humans1
Carbohydrate energy ratio is associated with mortality in humans (HRs for lower quartiles: 0.68-0.72).
“Lower CRC was associated with reduced all-cause mortality in the U.S. cohort (HRs for the lower quartiles: 0.68-0.72).”
HumansU.S. cohortLower quartiles of carbohydrate energy ration = 2,510
Diet composition linked to cognitive health in older adults
Journal of Alzheimer's disease reports22 Apr 2026
Cognitive impairment
mixedin humans1
Carbohydrate energy ratio is associated with cognitive impairment in humans (Inverse U-shaped association; threshold approximately 48.5% of total energy intake).
“A higher carbohydrate ratio (CRC) exhibited a nonlinear inverse U-shaped association with the risk of cognitive impairment, with a significant threshold effect”
Humans
Diet composition linked to cognitive health in older adults
Journal of Alzheimer's disease reports22 Apr 2026
Protein at approximately 15% of dietary energy was associated with the lowest risk of cognitive impairment in US and Chinese study groups.Protein at approximately 15% of dietary energy was associated with the lowest risk of cognitive impairment in US and Chinese study groups.