Ingestão alimentar, apetite, composição corporal e gasto energético de indivíduos eutróficos submetidos a diferentes fontes protéicas

• Autor(a) principal: Paiva, Aline Cardoso de
• Data de Publicação: 2006
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2807
• topic: Proteínas; Nutrição humana; Apetite; Composição corporal; Hábitos alimentares; Proteins; Human nutrition; Appetite; Body composition; Food habits; CNPQ::CIENCIAS DA SAUDE::NUTRICAO::ANALISE NUTRICIONAL DE POPULACAO

It has been suggested that food intake can be affected by the type of protein ingested. The purpose of this study was to evaluate the effect of the consumption of different protein sources on energy balance. A total of 26 volunteers (13 men and 13 women), 23 years of age, and body mass index (BMI) of 20.5 + 1.46 kg/m2 participated in this study. The study consisted of four experimental sessions. In each session, volunteers randomly ingested foods containing 0.5 g/kg of body weight of one of the types of protein tested (casein, soy, whey) or a food containing none of these protein types (control session), during 7 consecutive days. Volunteers body weight, energy metabolism, subjective appetitive ratings, and daily physical activity level performed were evaluated on days 1 and 7, after 12 hours fasting. From days 2 to 6 of each experimental session, volunteers completed subjective appetite questionnaires. During the whole study, participants registered all the foods ingested in free living conditions. No significant changes in body weight or body composition were observed between treatments. Soy protein intake lead to a greater thermogenic effect than the one observed in the control session. Daily caloric intake during casein consumption was smaller than the one observed during soy protein ingestion. No difference in subjective appetite sensations was observed.