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Macronutrient preload is a dieting technique in which a small amount of macronutrients are eaten at a fixed interval before a meal.
Fibers in a preload stimulate a feeling of fullness in the stomach. The glucomannan fiber preload is approved for weight control by European Food Safety Authority The preload should also have a low glycemic index and contain few calories.
References
- EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) (2010). "Scientific Opinion on the substantiation of health claims related to konjac mannan (glucomannan) and reduction of body weight, reduction of post-prandial glycaemic responses, maintenance of normal blood glucose concentrations, maintenance of normal (fasting) blood concentrations of triglycerides, maintenance of normal blood cholesterol concentrations, maintenance of normal bowel function and decreasing potentially pathogenic gastro-intestinal microorganisms pursuant to Article 13(1) of Regulation (EC) No 1924/2006". EFSA Journal. 8 (10): 1798. doi:10.2903/j.efsa.2010.1798.