Inadequate intestinal digestion of lactose.
D000293:Adolescent; D000328:Adult; D000349:Africa; D000818:Animals; D001208:Asia; D002239:Carbohydrate Metabolism, Inborn Errors / Q000453:epidemiology; D002648:Child; D004035:Diet Therapy; D005260:Female; D006801:Humans; D007408:Intestinal Absorption; D007787:Lactose Intolerance / Q000453:epidemiology / Q000235:genetics / Q000378:metabolism; D008297:Male; D008892:Milk; D011488:Protein Deficiency / Q000628:therapy; D013393:Sucrase / Q000378:metabolism; D013395:Sucrose / Q000378:metabolism; D014481:United States
D013395:Sucrose; D013393:Sucrase