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Background and Objective: Obesity is a major healthy problem wordwide. The incidence and severity of obesity is incrased in recent years. Satiety is described as a blocker of receiving more food after the end of eating. Satiety index (SI) is considered as index for measerment of ablity of food for losing of hungry and making satiety for more than 2 houres. This study was done to determine satiety index of low-fat yogurt (1.5%) and white bread in healthy adults with normal body mass index.
Methods: This quasi - experimental study was conducted on 30 healthy adults with normal body mass index for two consecutive days. In the first day, each subject was consumed 90 grams white bread and in the second day, each subject was consumed 526 grams of 1.5% low-fat yogurt within 15 minutes. The satiety of low-fat yogurt and white bread based on VAS and LIKERT scales was measeared. Cronbach's alpha was determined 0.98 for satiety of white bread and 0.947 for low-fat yogurt
Results: Satiety index of low-fat yogurt was 136.66±1.46 in compared to white bread (SI=100). The level of satiety after 120 minutes of consumption of white bread and low-fat yogurt were not significant based on the VAS scale, but according to the LIKERT scale, low-fat yogurt (1.60±0.43) significantly increased the Satiety index (P<0.05).
Conclusion: The satiety index of low-fat yogurt in adults with normal body weight was 136.66% compared to white bread that showed higher satiety of low-fat yogurt compared to white bread.