The Acute Effect of D-allulose Consumption on Postprandial Glycaemia

Inclusion Criteria: * Participant is willing and able to give informed consent for participation in the study * Not currently taking any medications (using contraceptive medication is acceptable) * Aged between 18 and 40 years * Healthy weight or overweight (Body Mass Index 19-30 kg/m2) Exclusion Criteria: * Reporting functional gastrointestinal problems, such as irritable bowel syndrome, gastroparesis or reflux * History of inflammatory bowel diseases such as Crohn's disease or Ulcerative colitis * Diabetes mellitus * Surgical resection of gastrointestinal tract. * Food allergies, intolerances or acceptability issues related to the standard meal, including veganism, lactose intolerance and coeliac disease. * Following a restricted habitual diet e.g. low carbohydrate, high protein or meal replacement diet * Following a restrictive dietary pattern e.g. intermittent fasting * Currently following a reduced-energy diet to control body weight * Pregnant or breast feeding * History or current psychiatric illness * History or current neurological condition (e.g. epilepsy) * Taking regular medication, including over the counter and prescription drugs; Oral contraception medication and intermittent use of over the counter pain relief is acceptable. * Having taken part in a research study in the last 3 months involving invasive procedures or an inconvenience allowance