What is colitis, and what are its main forms?
Colitis refers to inflammation of the colon—which should be distinguished from irritable bowel syndrome (a functional condition without inflammation). It can be acute (infectious) or chronic (IBD). Arnaud, Ph.D. in Pharmacy, emphasizes: any case of colitis accompanied by fever, blood in the stool, or weight loss requires urgent medical evaluation. Natural supplements can complement medical treatment—discover our line of probiotics and gut health supplements.
- Ulcerative colitis (UC): IBD affecting exclusively the colon (from the rectum to the right colon)—rectal bleeding + tenesmus + chronic diarrhea—progresses in flare-ups and remissions—specialized medical treatment (5-ASA, corticosteroids, biologics)
- Colonic Crohn’s colitis: Crohn’s disease localized to the colon—transmural involvement + strictures + possible fistulas—distinguished from UC by colonic biopsy
- Acute infectious colitis: Clostridium difficile (post-antibiotic), Salmonella, Campylobacter, enterohemorrhagic E. coli — febrile diarrhea, may be bloody — see our page on intestinal disorders
- Microscopic colitis: collagenous or lymphocytic — chronic watery diarrhea lasting > 4 weeks — normal colonoscopy but positive biopsies — associated with prolonged use of NSAIDs and PPIs
- Ischemic colitis: vascular obstruction of the colon — abdominal pain + sudden bloody diarrhea in patients with cardiovascular disease — vascular emergency
Natural Support for Colitis: Supplements and Targeted Active Ingredients
In addition to prescribed medical treatment, several natural active ingredients help support the colonic mucosa, modulate inflammation, and restore the microbiota. Discover our formulas in the pharmacy probiotics line.
- Probiotics (VSL#3, E. coli Nissle 1917, Lactobacillus reuteri): reduce mucosal inflammation in ulcerative colitis (UC)—documented maintenance of remission— buffered probiotic supplements suitable for IBD—3–6-month treatment course during remission
- Turmeric (curcumin): anti-inflammatory for the colonic mucosa — inhibits NF-κB and pro-inflammatory cytokines (TNF-α, IL-6) — positive clinical data in mild to moderate UC — bioavailable form with piperine or in liposomal form — to be taken with meals
- Omega-3 (EPA/DHA): modulates the intestinal inflammatory response — reduces pro-inflammatory leukotrienes — provides nutritional support during flare-ups and in remission — 2–4 g/day
- Aloe vera (inner leaf gel): soothes and heals the inflamed colonic mucosa — documented anti-inflammatory properties in mild UC — juice or gel to be taken in the morning on an empty stomach — appropriate dose (excess = laxative effect)
- Zinc 15–25 mg/day: repairs and maintains the integrity of the intestinal mucosa — often deficient in IBD — supports mucosal immunity — take during or after a meal
Diet and Lifestyle During Colitis
- Flare-up phase: a gentle, low-residue diet—rice, cooked carrots, chicken, white fish—avoid insoluble fiber (raw vegetables, wheat bran, legumes) that irritates the inflamed colon—spread meals over 5–6 small meals
- Remission phase: Gradually reintroduce soluble fiber (oats, pectin)—mild fermented foods (yogurt, kefir) to support the gut microbiota—avoid alcohol and tobacco (factors that maintain ulcerative colitis)
- Increased hydration: chronic diarrhea → significant fluid and electrolyte loss — water + oral rehydration solutions (ORS) during flare-ups — at least 2 L/day during remission
- Stress management: Stress is a documented trigger for UC flare-ups — cardiac coherence, meditation, CBT — see our irritable bowel syndrome page for management techniques
- Monitor for deficiencies: iron (anemia due to blood loss), vitamin B12 (if ileal involvement in Crohn’s disease), vitamin D (nearly universal deficiency in IBD) — blood tests every 6 months
Medical treatments, follow-up, and emergency warning signs
- 5-ASA (mesalazine): maintenance therapy for UC—tablets + suppositories depending on location—maintenance of remission—for life in extensive UC
- Corticosteroids: treatment of moderate to severe flares — rapid onset of action — not for maintenance therapy (cumulative side effects) — calcium and vitamin D supplementation during corticosteroid therapy
- Biological therapies (anti-TNF, anti-IL, anti-integrin): refractory or severe IBD — prescribed by a specialist (gastroenterologist) — tuberculosis screening before initiation
- Cancer risk monitoring: screening colonoscopy every 1–2 years after 8–10 years of extensive UC — increased risk of colorectal cancer in chronic IBD
- Medical emergency: toxic megacolon (distension + fever > 38.5°C + tachycardia + deterioration in general condition) → call 15 immediately
