Research

Hormonal

In healthy elderly individuals, age-associated deterioration in glucose tolerance is driven by decreased insulin secretion and action, where the severity of insulin resistance is determined by body fatness rather than chronological age itself.

For older adults, maintaining low visceral fat and high aerobic fitness is more critical for glucose tolerance than chronological age. While beta-cell function declines with age, managing body composition can mitigate insulin resistance. Focus on preserving muscle mass and reducing visceral adiposity rather than accepting metabolic decline as inevitable.

GoodQualifiesHIGH confidence
We conclude that the deterioration in glucose tolerance that occurs in healthy elderly subjects is due to a decrease in both insulin secretion and action with the severity of the defect in insulin action being explained by the degree of fatness rather than age per se.
Rita Basu et al. · Diabetes · 2003

Why this rating

Large sample size (67 elderly, 21 young), rigorous methodology (minimal models, IVGTT, mixed meals), and multivariate analysis controlling for confounders.

Source

Mechanisms of the Age-Associated Deterioration in Glucose Tolerance

Rita Basu et al. · Diabetes · 2003

DOI 10.2337/diabetes.52.7.1738

cross_sectional · n=88Cited 435×
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DOI resolved against Crossref · corpus check 2026-06-10

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