Digest IT!

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If you have been diagnosed with Inflammatory Bowel Disease, you already know that inflammation is at the heart of everything — the pain, the flares, the fatigue, the uncertainty. What many of my clients don’t realise when they first sit down with me is just how much influence their daily food choices have over that inflammatory process. An anti-inflammatory diet for IBD is not a cure, and I want to be honest about that from the outset. But it is one of the most powerful, accessible tools we have — and building a strong dietary foundation can meaningfully reduce symptom burden, support remission, and improve quality of life in ways that matter deeply to real people living with this condition every day.

Why Food Choices Matter So Much in IBD

IBD — which includes Crohn’s disease and ulcerative colitis — is characterised by chronic, dysregulated inflammation in the gastrointestinal tract. While the aetiology is multifactorial (genetics, immune dysfunction, environmental triggers all play a role), the gut microbiome and intestinal barrier integrity are increasingly recognised as central players. And here is where diet becomes genuinely exciting from a clinical standpoint: what we eat directly shapes both of those systems.

Research published over the past decade has consistently shown that dietary patterns influence gut microbial diversity, intestinal permeability, and the production of inflammatory cytokines. A 2021 study in Gastroenterology found that a Mediterranean-style dietary pattern was associated with reduced inflammatory markers in IBD patients. This is the kind of evidence I build my practice around — not fad protocols, but dietary frameworks with genuine mechanistic plausibility and clinical backing.

When a client presents with IBD, my first goal is never to hand them a rigid list of forbidden foods. My goal is to help them understand the principles that drive inflammation — and the principles that calm it — so they can make informed, sustainable choices even when life gets complicated.

The Core Anti-Inflammatory Dietary Principles I Use in Practice

These are the foundations I return to with every IBD client, regardless of whether they have Crohn’s or ulcerative colitis, regardless of disease location, and regardless of where they are in their journey.

1. Prioritise Omega-3 Fatty Acids

Omega-3 fatty acids — particularly EPA and DHA found in oily fish — have well-documented anti-inflammatory properties. They compete with arachidonic acid in inflammatory pathways, reducing the production of pro-inflammatory prostaglandins and leukotrienes. In my practice, I encourage clients to eat oily fish such as salmon, mackerel, and sardines at least two to three times per week. For those who struggle with this, or whose intake is inconsistent, a high-quality fish oil supplement is a practical and evidence-supported option.

I often recommend the Sports Research Omega-3 Fish Oil 1250 Triple Strength, sourced from wild Alaska Pollock and MSC certified for sustainability. For clients who want an even higher DHA concentration, the Triple Strength DHA Omega 3 Fish Oil 3600mg provides over 2100mg of combined omega-3s per serving, which is meaningful for anyone managing active inflammation. Those who prefer a lighter, lemon-flavoured softgel often appreciate the NatureWise Extra-Strength Omega 3 Fish Oil, which combines 600mg EPA and 400mg DHA with vitamin E for additional antioxidant support.

2. Build Your Diet Around Whole, Minimally Processed Foods

Ultra-processed foods are strongly associated with increased gut permeability, dysbiosis, and elevated inflammatory markers. Emulsifiers, artificial sweeteners, and refined carbohydrates found in processed products are particularly problematic for IBD patients. I see this play out clinically time and again — clients who shift away from convenience foods and towards whole food sources often report a noticeable reduction in bloating, urgency, and general digestive discomfort within a few weeks.

Practically speaking, this means centring meals around lean proteins, cooked vegetables (often better tolerated than raw during flares), whole grains where tolerated, legumes introduced gradually, and anti-inflammatory fats like olive oil and avocado. It does not need to be complicated or expensive — the fundamentals are straightforward once you understand the reasoning behind them.

3. Address Gut Microbiome Health Proactively

The gut dysbiosis seen in IBD — characterised by reduced microbial diversity and an overgrowth of pro-inflammatory bacterial strains — is both a consequence and a driver of inflammation. Supporting a healthier microbial environment through diet and targeted supplementation is a key part of my clinical approach.

Dietary prebiotics (found in foods like leeks, garlic, asparagus, and oats) feed beneficial bacteria, while fermented foods like natural yogurt, kefir, and miso introduce live cultures. For supplementation, I often suggest the Digestive Advantage IBS Daily Probiotic Capsules, which are well tolerated and formulated specifically with digestive health in mind. Another option I have recommended for clients focused on intestinal flora optimisation is the GeriCare Acidophilus with Pectin Probiotic Capsules, which combines acidophilus with pectin to support both microbial balance and immune function.

I want to be clear that probiotic evidence in IBD is nuanced — strain specificity and disease type both matter — but for many of my clients, a well-chosen probiotic is a genuinely useful adjunct to dietary therapy.

4. Don’t Overlook Targeted Nutritional Support

IBD frequently causes malabsorption, and deficiencies in key nutrients are common — often underdiagnosed, and often contributing to fatigue and worsened inflammation. Vitamin D is perhaps the most significant of these. Low vitamin D status is associated with increased disease activity in both Crohn’s and ulcerative colitis, and many IBD patients are chronically deficient due to reduced absorption and limited sun exposure.

I routinely check vitamin D levels in clients with IBD and supplement accordingly. For maintenance support, the NatureWise Vitamin D3 2000iu in organic olive oil is a gentle, absorbable option. For clients with confirmed deficiency who need a higher therapeutic dose, the NatureWise Vitamin D3 5000iu — also delivered in organic extra virgin olive oil for optimal absorption — is my go-to recommendation. Always work with your healthcare provider to establish the right dose based on your blood levels.

5. Consider Condition-Specific Gut Support

Beyond general dietary principles, some clients benefit from formulas designed specifically for the inflammatory environment of IBD. One product I have been increasingly recommending is the JL-7 Crohn’s and Colitis Supplement, which is patented and formulated with all-natural ingredients to support gut health in the context of IBD, including Crohn’s disease, ulcerative colitis, and IBS. It is the kind of targeted supplement that can complement a strong dietary foundation rather than replace it — and I appreciate that it has been developed with the specific inflammatory mechanisms of IBD in mind.

What to Reduce or Avoid in an IBD-Friendly Diet

The anti-inflammatory diet for IBD is as much about what you reduce as what you add. In my experience, the following tend to drive symptoms and inflammation in a meaningful proportion of IBD patients:

• Ultra-processed foods high in emulsifiers and additives
• Refined sugars and sugar-sweetened beverages
• High-fat red meat consumed in large quantities
• Alcohol, which increases intestinal permeability and disrupts the microbiome
• Excessive insoluble fibre during active flares, when the gut is already irritated

That said, I am always cautious about overly restrictive elimination. The research shows that dietary variety — particularly varied plant food intake — is protective for the microbiome. Unnecessary restriction can cause its own harm, both nutritionally and psychologically. The goal is targeted, intelligent reduction, not fear-based avoidance.

My Nutritionist Recommendation: Start with the Foundations

Living with IBD is genuinely challenging, and I have enormous respect for anyone managing this condition day to day. The good news is that an anti-inflammatory diet for IBD does not require perfection — it requires consistency with the fundamentals. Prioritise omega-3-rich foods and supplement where needed. Build your meals around whole, minimally processed ingredients. Support your gut microbiome through prebiotic foods and a well-chosen probiotic. Address nutritional deficiencies — particularly vitamin D — with appropriate supplementation. And if you are looking for additional targeted support, consider a condition-specific formulation like JL-7 alongside your dietary efforts.

If you are not sure where to start, I always recommend beginning with one change at a time. Add oily fish twice a week. Switch from a processed snack to something whole food-based. Introduce a daily probiotic. Small, sustainable steps compound into meaningful change over months.

If you would like personalised guidance tailored to your specific diagnosis, disease activity, and nutritional needs, I encourage you to work with a registered nutritionist or dietitian who specialises in IBD. Diet can be transformative in this condition — but it works best when it is personalised, evidence-informed, and supported by your wider healthcare team. You deserve care that treats you as a whole person, not just a set of symptoms.