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  • Title: The addition of peanuts to habitual diets is associated with lower consumption of savory non-core snacks by men and sweet non-core snacks by women.
    Author: Barbour JA, Stojanovski E, Moran LJ, Howe PRC, Coates AM.
    Journal: Nutr Res; 2017 May; 41():65-72. PubMed ID: 28506518.
    Abstract:
    Snacking is associated with intakes of non-core foods which may predispose to obesity. Peanuts have potential satiety benefits and may assist with weight management; we hypothesized that peanut consumption would reduce intake of non-core snack foods due to compensation. We investigated the effects of adding peanuts to a habitual diet on snacking habits and energy intake. Sixty-one healthy participants (65±7years, body mass index 31±4kg/m2) consumed their habitual diet with or without peanuts (56g/d for 32 women, 84g/d for 29 men) for 12weeks each in a randomized crossover design. Food diaries were analyzed at baseline and after each 12-week period for meal and snack content and timing. Total energy intake was higher (17% for men [P<.001], 9% for women [P<.001]) during the peanut phase. Body weight was 0.5±0.2kg (P=.010) greater during the peanut phase. Snacking occasions increased during the peanut phase (53% for men [P=.001], 14% for women [P=.01]). Servings of other snack foods did not change during the peanut phase (P=.6) compared with control. However, sex-specific analysis revealed that men and women consumed less savory (P<.001) and sweet (P=.01) non-core snacks, respectively, during the peanut phase. Despite increased energy intake and snacking frequency, peanuts may improve the diet through sex-specific reductions of non-core foods; for optimal energy balance, peanuts should be substituted rather than added to the diet.
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