Milk proteins for glycemic management

INTERVENTION: Participants will be randomised to receive three treatments in a random order. There will be a washout period of 2 days between each arm, where participants follow their normal diet. Treatment 1: Protein drink containing intact casein Treatment 2: Protein drink containing protein hydrolysate A Treatment 3: Protein drink containing protein hydrolysate B In all treatments, the protein drink will be consumed twice daily for 3 days as part of study breakfast and evening meals. Follow up involves wearing the FreeStyle Libre continuous glucose monitoring system for 14 days in order to monitor glucose levels. CONDITION: Diabetes risk ; Nutritional, Metabolic, Endocrine ; Diabetes risk PRIMARY OUTCOME: Glucose levels are measured using the FreeStyle Libre continuous glucose monitoring system continuously for the 14 days of the study. SECONDARY OUTCOME: Glucose control throughout the day is measured using the FreeStyle Libre continuous monitoring system continuously for the 14 days of the study. INCLUSION CRITERIA: Healthy adults aged 40‐65 years