A Comparison of the Effects of Beef, Chicken and Fish Protein on Satiety and Amino Acid Profiles in Lean Male Subjects

• Published in: The Journal of nutrition Vol. 122; no. 3; pp. 467 - 472
• Main Authors: Uhe, Anthony M., Collier, Greg R., O’Dea, Kerin
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Bethesda, MD Elsevier Inc 01.03.1992; American Society for Nutritional Sciences
• Subjects: ACIDE AMINE; administration & dosage; Adolescent; Adult; ADULTE; ADULTOS; amino acids; Amino Acids - administration & dosage; Amino Acids - blood; AMINOACIDOS; analysis; Animals; APETITO; APPETIT; AUSTRALIA; AUSTRALIE; beef; Biological and medical sciences; blood; blood glucose; Blood Glucose - analysis; blood plasma; CARNE DE POLLO; CARNE DE RES; Cattle; chicken meat; Chickens; DIETA; Dietary Proteins; Dietary Proteins - administration & dosage; Dietary Proteins - metabolism; experimental diets; EXPERIMENTATION; EXPERIMENTOS; Feeding. Feeding behavior; fish; Fishes; Fundamental and applied biological sciences. Psychology; GLICEMIA; GLYCEMIE; HOMBRES; HOMME; Humans; insulin; Insulin - blood; INSULINA; INSULINE; Leucine; Leucine - blood; Male; Meat; men; metabolism; Methionine; Methionine - blood; PESCADO; PLASMA SANGUIN; PLASMA SANGUINEO; POISSON (ALIMENT); protein; PROTEINAS; PROTEINE; proteins; REGIME ALIMENTAIRE; Satiation; satiety; serotonin; SEROTONINA; SEROTONINE; Taurine; Taurine - blood; Tryptophan; Tryptophan - blood; Tyrosine; Tyrosine - blood; Vertebrates: anatomy and physiology, studies on body, several organs or systems; VIANDE BOVINE; VIANDE DE POULET; young adults; Australia; satiety; serotonin; humans; protein; amino acids; Human; Feeding behavior; Food intake; Aminoacid; Animal protein; Satiety; Tryptophan; Feeding; Blood plasma
• ISSN: 0022-3166; 1541-6100
• DOI: 10.1093/jn/122.3.467

We compared postprandial satiety and plasma amino acid, insulin, and glucose concentrations in six lean male subjects after the ingestion of three types of protein (beef, chicken and fish). Satiety was greater after the fish meal (P < 0.01). The observed difference in satiety could be correlated with two of the putative satiety signals measured in this study: 1) serotoninergic activity, due to differences observed in the postprandial tryptophan to large neutral amino acid ratio; and 2) digestibility, reflected in the significantly (P < 0.05) longer time it took for the plasma amino acid concentrations to peak after the fish meal. Correlations between dietary and plasma amino acid concentrations were determined and good correlations (r = 0.90) were observed for essential amino acids other than lysine and tryptophan. There were no differences in insulin or glucose concentrations in subjects after consuming each of the three meals. Whether other differences that we observed, such as increased concentrations of taurine and methionine following the fish meal, had any effect on satiety or were of biological significance is not known.