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