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Changes in liking for sweet and fatty foods following weight loss in women are related to prop phenotype but not to diet
Author(s) -
Burgess Brenda,
Rao Salome P.,
Tepper Beverly J.
Publication year - 2016
Publication title -
obesity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.438
H-Index - 199
eISSN - 1930-739X
pISSN - 1930-7381
DOI - 10.1002/oby.21570
Subject(s) - dieting , medicine , weight loss , obesity , sucrose , sweetness , taste , food science , biology
Objective Changes in perceived intensity and liking of tasted foods have not been studied during weight loss from dieting. These outcomes were examined during a 6‐month lifestyle intervention in women who had been classified by sensitivity to the bitter taste marker, 6‐n‐propylthiouracil (PROP), and then randomized to a low‐fat or low‐carbohydrate diet. Methods Sixty‐nine women (BMI = 34.4 kg/m 2 ; age = 44.2 years) followed the low‐fat diet ( n = 31) or low‐carbohydrate diet ( n = 38). At baseline and at 3, and 6 months, they rated overall liking and intensity of attributes in strawberry milk and salad dressing varying in sucrose (0%, 15%, and 30% wt/vol) or fat (10%, 30%, 50% wt/vol) content, respectively. Results Perceived intensity of the attributes did not change. For all participants, the 15% and 30% sucrose milk samples were equally liked at baseline and 3 months, but by 6 months, the 15% sucrose sample was highest liked ( P < 0.007). Also, the 50% fat sample was most liked at baseline and least liked by 6 months ( P = 0.04), and this effect was most pronounced in the nontasters ( P < 0.02). There were no effects of diet prescription on liking. Conclusions Weight loss from dieting resulted in a hedonic shift for foods with lower sucrose and fat content.