Impact of Protein Content of Milk on Post-Exercise Appetite and Energy Intake

Launched by HACETTEPE UNIVERSITY · Jun 25, 2025

Keywords

ClinConnect Summary

This clinical trial is studying how drinking milk with different amounts of protein after exercise affects hunger and how much people eat afterward. The researchers want to see if having high-protein milk, regular-protein milk, or a carbohydrate drink after endurance exercise changes how hungry participants feel, how their appetite-related hormones respond, and how much food they choose to eat later. This could help us understand the best type of drink to support appetite and energy needs after exercise.

Men between 18 and 39 years old who are healthy and regularly take part in endurance sports like running, cycling, or triathlon (at least three times a week for 60-90 minutes) may be able to join. Participants will complete an endurance workout, then drink one of the study beverages. Their feelings of hunger will be checked several times, and blood samples will be taken to measure hormones related to appetite. Afterwards, they will be offered a meal where they can eat as much as they want, so researchers can see how the drinks affect their food intake. People who smoke, have certain health conditions, allergies to the drinks, or are currently trying to lose weight will not be eligible. This study is currently looking for volunteers.

Gender

MALE

Eligibility criteria

• Inclusion Criteria:
• • The study will include healthy, physically active male participants aged 18-39 years who have been engaging in recreational endurance sports (such as cycling, running, triathlon, orienteering, or team sports) for at least one year, with a minimum frequency of 3 sessions per week lasting 60-90 minutes.
• Exclusion Criteria:
• • Current smoker
• • Chronic or excessive alcohol consumption
• • Use of supplements and/or chronic medications that may affect appetite
• • Presence of cardiac, hepatic, renal, pulmonary, neurological, hematological, gastrointestinal, diabetic, thyroid, or psychiatric disorders, and/or musculoskeletal conditions that may limit exercise participation
• • Allergy or intolerance to any of the foods or beverages to be consumed during the study
• • Unstable body weight (e.g., weight loss greater than 1 kg in the past week)
• • Currently following a weight-loss diet
• • Diagnosed eating disorders or individuals who cognitively restrict food intake (to be assessed using the Three-Factor Eating Questionnaire)