Proteins and satiety: implications for weight management.

Area of Science:

• Nutritional Science
• Metabolism
• Obesity Research

Background:

• Protein's role in appetite regulation is crucial for weight control.
• Satiety signals influenced by protein impact energy intake and expenditure.

Purpose of the Study:

• To review the satiating effects of protein.
• To explore protein's implications for weight management and maintenance.

Main Methods:

• Analysis of studies investigating protein-induced satiety.
• Examination of factors influencing protein's satiating effects (e.g., concentration, timing, texture).
• Review of hormonal and metabolic responses to protein intake.

Main Results:

• High-protein meals and diets effectively induce satiety, aiding weight loss and maintenance.
• Satiety is mediated by amino acids, anorexigenic hormones, and increased energy expenditure.
• Long-term high-protein diets support sustained satiety, energy expenditure, and fat-free mass preservation.
• Potential adverse effects, such as kidney damage from sulfur-containing amino acids, require consideration in susceptible individuals.

Conclusions:

• Further controlled studies are needed to elucidate protein's role in weight management.
• Future research should focus on diverse protein types, energy balances, and individual metabolic profiles.
• Simultaneous assessment of satiety, energy expenditure, and substrate oxidation is recommended.