Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Incidence of Lactose Intolerance Among Self-reported Lactose Intolerant People
Brief Summary: This is a 3-sites, double-blinded, randomized, 2X2 cross-over study aiming to compare effects of milk containing only A2 type beta casein versus milk containing both A1 and A2 beta casein proteins on the gastrointestinal symptoms for the health people who self-reported to be lactose intolerant.