Sigma Nutrition Radio

#520: How Exercise Impacts Appetite, Food Intake and Adiposity – James Dorling, PhD

George Pagan III's AI podcast notes
AI-generated based on their snips

1. Acute exercise has been shown to suppress appetite, known as exercise-induced anorexia, especially during moderate to intense aerobic exercise.
2. Exercise leads to suppression of the hunger hormone acetylated ghrelin and elevations in satiety peptides PYY and GLP1, but these effects are short-lived.
3. Aerobic exercise shows the most consistent evidence of inducing acute responses to appetite, while resistance training's effects on appetite regulation are less robust due to fewer studies.
4. Individuals who are overweight and obese may experience compensatory increases in food intake with exercise, potentially counteracting expected weight loss.
5. The relationship between physical activity and eating habits is complex, with unclear evidence whether exercise directly improves appetite sensitivity.
6. Variability in weight loss and body composition changes in response to exercise is significant among individuals, influenced by factors like genetic predisposition and metabolic response.
7. Compensatory changes in food intake, such as increased cravings and energy intake, may contribute to substandard weight loss outcomes in some individuals undergoing exercise interventions.
8. Engaging in exercise interventions could lead individuals to reduce non-exercise physical activities and improve energy efficiency, potentially negating the calorie deficit induced by exercise.
9. Questionnaire-based tools tend to underestimate food consumption, especially in overweight and obese individuals, while mobile phone tools and double labeled water are more accurate measures for estimating food intake.
10. The amount of moderate to intense physical activity one engages in habitually is more important than their fitness level, indicating that individuals who lead healthier lifestyles may better regulate their appetite and engage more in exercise.

Highlights created by George Pagan III

Effect of Acute Exercise on Appetite

07:03 • 57sec

Exercise Impact on Hormones and Appetite

08:04 • 1min

Insights on Acute Responses to Exercise

09:56 • 1min

Exercise and Appetite Regulation

14:44 • 2min

Complexity of Eating Decisions

17:23 • 1min

Understanding Variability in Exercise Response

19:26 • 1min

Factors Affecting Weight Loss Response to Exercise

20:08 • 2min

Effects of Exercise on Non-Exercise Physical Activity and Energy Efficiency

22:08 • 1min

Factors influencing weight loss in response to exercise

25:51 • 2min

Importance of Habitual Physical Activity over Fitness Levels

32:11 • 1min

Accurate Measures of Food Consumption

41:42 • 1min