Research
Macro partitioning
High-quality carbohydrate intake is associated with reduced phenotypic age acceleration, but the relationship is non-linear, with potential adverse effects at excessive intake levels.
While high-quality carbohydrates (whole grains, vegetables) generally slow aging, the benefit is not linear. Very high intake may not provide additional benefits and could be detrimental. Aim for a balanced intake of these foods as part of a substitution strategy rather than maximizing them.
ModerateQualifiesMEDIUM confidence
Initially, PhenoAgeAccel increases, indicating accelerated aging; however, after reaching a certain threshold, it decreases, suggesting a deceleration of aging, before rising again.
Why this rating
Based on restricted cubic spline analysis in an observational study; suggests a threshold effect but does not prove causality.
Source
BMI Mediates the Association between Macronutrient Subtypes and Phenotypic Age Acceleration
Kai He et al. · Nutrients · 2024
DOI 10.3390/nu16203436
cross_sectional · n=6911Cited 3×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Replacing servings of low-quality carbohydrates or animal protein with high-quality carbohydrates or plant protein reduces phenotypic age acceleration (PhenoAgeAccel).Moderate
- BMI mediates the association between macronutrient quality and phenotypic age acceleration, accounting for approximately 20-30% of the effect.Moderate
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