Short term low-calorie diet improves insulin sensitivity and metabolic parameters in obese women

• Autores: Grazielle Vilas Bôas Huguenin, Sofía Kimi Uehara, José Firmino Nogueria Netto, Egberto Gaspar de Moura, Glorimar Rosa, Magna Cottini da Fonseca Passos
• Localización: Nutrición hospitalaria: Organo oficial de la Sociedad española de nutrición parenteral y enteral, ISSN-e 1699-5198, ISSN 0212-1611, Vol. 30, Nº. 1, 2014, págs. 53-59
• Idioma: inglés
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• Resumen

  • Obesity and insulin resistance are associated with an increase of cardiovascular risk factors, including adipocytokines. The aim of this study was to investigate the effect of low-calorie diet on serum lipids, adipokines, insulin resistance and body composition in obese women. It was a clinical trial with class I obese women aged 30-45 years submitted to hypocaloric diet for 90 days. Dietary intake, anthropometric parameters, body composition, serum lipids, glucose, insulin, leptin, adiponectin, HOMA-IR and QUICKI indexes were evaluated at the baseline, 30, 60 and 90 days. There was 30% significant decrease in energy intake, and also decrease in body weight, body mass index and waist circumference (p < 0.01) throughout the treatment period. Despite the amount of lean body mass (kg) reduced in average, it was observed that lean body mass (%) had increased (p < 0.01) and that the amount of fat body mass (kg) had decreased significantly in the third month (p < 0.05). Systolic blood pressure reduced up to -5mmHg (p < 0.05) after 90 days. Was observed a decrease (p < 0.05) on serum insulin and HOMA-IR until the 60th day, while the serum adiponectin increased (p < 0.01) during treatment. Corroborating with the reduction of fat body mass and weight, serum leptin also reduced (p < 0.01). These results suggest that the short-term low-calorie diet reduces total body fat, mainly found in the abdominal region, and efficiently improve insulin sensitivity decreasing cardiovascular risk in obese women.