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Coffee induced thermogenesis and skin temperature
A Tagliabue1, D Terracina, H Cena
1Department of Human Nutrition, Faculty of Medicine, University of Pavia, Italy.
Summary
Drinking coffee increases energy expenditure (EE) and is linked to skin temperature changes. Interindividual skin temperature variations may explain differences in EE and obesity proneness.
Area of Science:
- Human physiology
- Thermoregulation
- Metabolism
Background:
- Caffeine consumption is known to influence metabolic rate.
- Understanding thermogenic responses to beverages is crucial for metabolic health.
- Individual variations in energy expenditure contribute to obesity risk.
Purpose of the Study:
- To investigate the relationship between changes in mean skin temperature and energy expenditure after coffee consumption.
- To determine if skin temperature variations can explain differences in caffeine-induced thermogenesis.
Main Methods:
- Twelve healthy subjects (five males, seven females) participated.
- Energy expenditure (EE) was measured using open-circuit indirect calorimetry.
- Skin temperature was monitored at four body regions for 120 minutes post-caffeine intake.
Main Results:
- A significant correlation was observed between thermogenic responses and skin temperature changes (90-120 min).
- Multiple regression analysis showed mean skin temperature and body weight predict EE (r=0.71, P=0.01).
- The equation derived was: EE (kcal/min/m2) = -1.44 + 0.052 (mean skin temperature) + 0.004 (body weight).
Conclusions:
- Interindividual differences in mean skin temperature can account for variations in energy expenditure among individuals with similar body weight and composition.
- These findings suggest that skin temperature may play a role in explaining differences in susceptibility to obesity.