Effect of Oral Lubrication on Appetite, Food Intake and Salivary Biomarkers in Protein Beverages

Inclusion Criteria: * Adults aged 18-55 years old * With a BMI between 18.5 - 27.99 kg/m²) * Generally healthy Exclusion Criteria: * have any blood borne disease; * have type-1 or type-2 diabetes; * have liver and kidney disease; * have past history of gastrointestinal surgery; * are a smoker; * have oral infections/ diseases; * have chronic or acute health condition that may affect ability to sense, eat, digest, absorb or excrete food; * have a sensitive stomach (Irritable Bowel Stomach); * are currently using prescribed or non-prescribed medication; * are pregnant or lactating; * are suffering from an illness, feeling unwell, having fever, or cold or cough; * history of food allergy or intolerance; * are on any special diet or are taking protein and/or fibre supplements; * cannot tolerate protein beverages; * present any COVID related symptoms (high temperature, a new continuous cough, a loss or change to your smell or taste); * if you are self-isolating or if you leave with someone self-isolating or presenting COVID related symptoms.