Tailored Anti-Inflammatory (A-I) Diet for Americans With Ulcerative Colitis (UC)

Inclusion Criteria: * Documented diagnosis with ulcerative colitis from medical records. * Self-Identify as American * Ages 16-75 * SCCAI between 3-9 (no greater than 12 bowel movements a day) * Fecal calprotectin \> 150mg/dl. * On stable medications for their disease for the past 3 months * Likeability of American foods (sandwiches, BBQ or grilled meats and vegetables, baked potatoes, smoothies, salmon, oatmeal, avocado, soups) * No recent Inflammatory Bowel Disease (IBD) related hospitalization in the last month. Exclusion Criteria: * Diagnosis of Crohn's Disease (CD). * Prior ileoanal anastomosis (J-pouch) or diversion * No recent hospitalizations on the last 4 weeks * No Clostridium difficile or enteric infections on the last 4 weeks * No use of probiotics on the last 4 weeks * Patients following the specific carbohydrate diet or mediterranean diet or anti-inflammatory diet * No active cancer or conditions limiting their ability to follow a diet (heart failure, end stage renal disease) * Pregnancy, breastfeeding or planning to become pregnant during study period * Use of Total Parenteral Nutrition at the time of screening and during the study period * Other significant or life-threatening co-morbidities * The need for antibiotic use during the study period * Adults unable to consent * Ages less than 16 and \> 75 years old * Prisoners