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This study examines whether lactose-containing milk versus lactose-free milk affects diabetes prevention in people with a history of pre-diabetes who carry a specific genotype in the LCT gene (rs4988235, GG). It enrolls people who drink no more than one cup of milk per day, have not been diagnosed with diabetes, and do not have a milk allergy. Run by Albert Einstein College of Medicine, this study does not use clinical phases and is currently recruiting participants.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * LNP genotype (LCT gene rs4988235, GG genotype) * History of pre-diabetes, defined as fasting blood glucose 100-125 mg/dL and/or hemoglobin A1c (HbA1c) 5.7-6.4% and have not been diagnosed with diabetes nor take diabetes medication (pre-diabetes determined at most recent study visit \[for HCHS/SOL participant\] or most recent medical chart or self-report \[for other participant\]) * Drink ≤1 cup milk/day * Basic computer or smartphone skills * Can speak and read English fluently Exclusion Criteria: * Diabetes diagnosis * Taking anti-diabetes medication * Cancer, cardiovascular disease (CVD), or life-threatening illness * Known milk allergy * Has severe GI symptoms after drinking milk * History of GI surgery * Had a double mastectomy * Smoking * More than 1 alcoholic beverage/day * Pregnant or breastfeeding * Colonoscopy in last 2 weeks * Antibiotics in last 3 months * Taking probiotics or fiber supplements (if taking, must be able to stop taking during study) * Taking laxatives, stool softeners, anti-diarrheal (if taking, must be able to stop taking during study) * Taking lactase pills (if taking, must be able to stop taking) * Participating in extreme dieting program * Planning extended travel that would prevent participation in study * Taking medication that must be taken separate from calcium or dairy products