Mixed
A lower ratio of fat to carbohydrate oxidation (indicated by a lower 24-hour respiratory quotient) predicts subsequent body weight gain in Pima Indians.
If you struggle with weight gain despite eating what seems like a normal amount, your body might preferentially oxidize carbohydrates over fat (low fat oxidation rate). This metabolic trait predicts weight gain. Focus on strategies that may improve fat oxidation, such as resistance training or specific nutrient timing, rather than just counting calories, as your metabolic efficiency plays a larger role than previously thought.
We conclude that 1) family membership is the principal determinant of 24-h RQ and may contribute to the familial aggregation of obesity, and 2) a low ratio of fat to carbohydrate oxidation is associated with subsequent weight gain and may contribute to the development of obesity.
Why this rating
Longitudinal study with follow-up data in a specific population (Pima Indians), controlling for energy expenditure and body composition.
Source
Low ratio of fat to carbohydrate oxidation as predictor of weight gain: study of 24-h RQ
F. Zurlo et al. · American Journal of Physiology-Endocrinology and Metabolism · 1990
DOI 10.1152/ajpendo.1990.259.5.e650
Related findings · Mixed
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