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Dose response effect of whey protein on energy intake
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.1_supplement.1090.12
Subject(s) - preload , whey protein , crossover study , appetite , meal , food science , whey protein isolate , chemistry , zoology , medicine , endocrinology , biology , hemodynamics , alternative medicine , pathology , placebo
Whey protein has been shown to increase satiety and decrease subsequent energy intake. It's unclear whether increasing amounts of whey protein will augment the satiety effects. The aim of this study was to investigate the satiety responses of preloads containing different amounts of whey protein. The study used a single blind randomised within subject crossover design. After consuming a standardized breakfast, subjects were provided one of three 250kcal liquid preloads containing 10, 20 or 40% energy from whey protein or a flavoured water control (0 kcal 0 protein). Appetite ratings were completed on visual analogue scales (VAS), intake at an ad libitum test‐meal served 90 min after consuming the preload, and self reported intake for the remainder of the day were compared between trials. There were no differences in VAS ratings. Energy intake at the test meal showed a stepwise reduction as whey protein content of the preload increased (P< 0.05). Total daily energy intake was not different between conditions. Thus, increasing whey protein content of a liquid preload appears to reduce energy intake at the next meal. This study was funded by a BBSRC CASE PhD Studentship with Mars UK as Industrial Partner.