Comparing the Adaptation of Commercial Milk and A2 Milk in Lactose Maldigesters

Inclusion Criteria: * Ability/desire to provide informed consent Aged 18 to 65 years of age inclusive at screening Current or recent history of intolerance to or avoidance of dairy of at least one month duration (by self-report and self-reported symptoms). Agrees to refrain from all other treatments and products used for dairy intolerance (e.g., Lactaid® Dietary Supplements) during study involvement Willing to return for all study visits and complete all study related procedures Able to understand and provide written informed consent in English Exclusion Criteria: * Allergic to milk Currently pregnant Currently lactating Cigarette smoking or other use of tobacco or nicotine containing products within 3 months of screening Diagnosed with any of the following disorders known to be associated with abnormal gastrointestinal motility such as; Gastroparesis, amyloidosis, neuromuscular diseases (including Parkinson's disease), collagen vascular diseases, alcoholism, uremia, malnutrition, or untreated hypothyroidism History of surgery that alters the normal function of the gastrointestinal tract including, but not limited to: gastrointestinal bypass surgery, bariatric surgery, gastric banding, vagotomy, fundoplication, pyloroplasty \[Note: history of uncomplicated abdominal surgeries such as removal of an appendix more than 12 months prior to screening will not be excluded\] Past or present : Organ transplant, chronic pancreatitis, pancreatic insufficiency, symptomatic biliary d…