Research

Hormonal

Prolonged fasting is associated with a significant decrease in glucose tolerance after a normal mixed meal.

Practitioners should be aware that prolonged fasting may impair glucose tolerance, impacting meal planning.

StrongSupportsmedium confidence
With 72 h of fasting, the glucose and insulin excursions in response to the mixed meal were significantly greater compared with the 13-h fast (P < 0.001).
Tracy J. Horton et al. · Journal of Applied Physiology · 2001

Why this rating

Based on study design from abstract.

Source

Prolonged fasting significantly changes nutrient oxidation and glucose tolerance after a normal mixed meal

Tracy J. Horton et al. · Journal of Applied Physiology · 2001

DOI 10.1152/jappl.2001.90.1.155

other · n=8Cited 56×
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DOI resolved against Crossref · corpus check 2026-06-10

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