Non-nutritive Sweeteners in Inflammatory Bowel Disease

Inclusion Criteria: * Age range from: 18 to 70 years. * Male or female. * Documented diagnosis of Crohns disease. CD outpatients in remission; Harvey Bradshaw- index in remission (\<6 score). * Capable of providing consent to participate. * Able to complete daily surveys and take oral nutrition. * Able to record meal intake. * Healthy controls with no diagnosis of IBD or Irritable Bowel Syndrome (IBS). Exclusion Criteria: * Short bowel syndrome. * Hospitalized patients. * Individuals who lack consent capacity, including the mentally ill, prisoners, cognitively impaired participants, dementia patients. * Known drug abuse. * Known parasitic disease of the digestive system. * Symptomatic intestinal stricture/narrowing. * Presence of an ostomy. * Known active malignancy. * Antibiotic use within last 14 days. * Well-founded doubt about the patients cooperation. * Existing pregnancy or lactation. * History of \<1 natural bowel movements per 3 consecutive days. * Unable to access to technology that permits the daily completion of study related activities. * Change in IBD medication within past 4 weeks. * Body mass Index \<18 kg/m or ≥35 kg/m. * Documented C.difficile colitis within four weeks of screening. * Bariatric surgery * Phenylketonuria