Eliana Meza Miranda - Biomedicine PhD. Centro Multidisciplinario de Investigaciones Tecnológicas, Universidad Nacional de Asunción, Paraguay.
Fernanda Castillo Ocampos - Nutritionits. Universidad del Norte – Asunción, Paraguay.
Dina Dominguez Colman - Nutritionits. Universidad del Norte – Asunción, Paraguay.
Melissa Ramirez Chamorro - Nutritionits. Universidad del Norte – Asunción, Paraguay.

Introduction: Fasting is a state of negative energy balance. Different fasting regimens have been used to achieve weight loss and other health benefits. To evaluate the effects of intermittent fasting on body weight, body mass index (BMI), waist circumference and fat mass percentage in people with overweight or obesity. Methods: This experimental study was conducted on ۲۲ adults of both genders aged ۱۸-۶۰ years, who were overweight or obese. A gradual intermittent fasting intervention was performed for ۴ weeks with ۱۰ hours of fasting in the first week and ۱۶ hours of fasting in the last week. Variables such as body weight, BMI, waist circumference, and fat mass percentage were evaluated before and after the intervention in two groups, with and without dietary recommendations (ad libitum). Results: At the end of the intervention, body weight, BMI, and waist circumference were significantly reduced in both groups, except for fat mass percentage. On the contrary, no statistically significant differences were found for all the parameters between groups (p>۰.۰۵). Conclusion: According to results, body weight, BMI, and waist circumference decreased significantly in the two groups after four weeks of intermittent fasting.

Intermittent Fasting, Overweight, Anthropometric parameters