Effect of dietary calcium (Ca) on body composition and Ca metabolism during growth in genetically obese (β) male rats.

MAROTE C; WEISSTAUB A; BRYK G; OLGUIN M,; POSADAS M,; LUCERO DM; SCHERIER L,; DE PORTELA ML; ZENI S

EUROPEAN JOURNAL OF CLINICAL NUTRITION

NATURE PUBLISHING GROUP

Lugar: Londres; Año: 2013 p. 1 - 9

0954-3007

INTRODUCTION: Obese β rats may be a suitable model to evaluate the association between calcium intake (CaI) and obesity during growth. OBJECTIVE: The present study comparatively evaluated Ca absorption and retention, and changes in body composition in spontaneously genetically obese (β) male rats fed three different dietary Ca levels: high 0.9% (HCa); normal: 0.5% (NCa); low: 0.2% (LCa). METHODS: Pregnant rats were fed isocaloric diets which varied in Ca content only. Male pups continued feeding the same maternal diet until postnatal day 60. The percentage of Apparent Ca absorption (CaA %), Ca balance (CaB), body composition, glucose, triglycerides (TGL), and insulin levels were evaluated. RESULTS: Food consumption and body weight (BW) were higher in Group LCa than in Groups NCa and HCa (p