Participants are asked to come in for a screening prior to testing. Here we explain the study protocol in depth, allowing participants to ask as many questions as necessary and ensure they meet our eligibility criteria. Once we have obtained consent, then we book participants in for testing. A typical testing would involve, asking participants to fast for at least 12 hours prior to testing. Participants will be asked to consume the test product and we will take regular finger prick samples before consumption of product and then at 15 to 30 minute intervals after. During testing time, participants can work at their desks or in our study suite. A GI study lasts 2-3 hours per test session and involves completing four test sessions in total.