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Alex Mercer

Alex Mercer is a health writer and nutrition researcher with more than 12 years focused on gut health, digestive wellness, and evidence-based dietary guidance. He translates peer-reviewed research and expert interviews into practical, honest advice, and is always upfront about what the evidence does and does not show.

Best At-Home Coeliac and Gluten Sensitivity Tests: What They Actually Measure and Who Should Use Them

July 1, 2026March 21, 2026 by Alex Mercer
Best At-Home Coeliac and Gluten Sensitivity Tests: What They Actually Measure and Who Should Use Them — image 1

I am often asked whether at-home coeliac tests are worth it. My answer depends entirely on what the client is testing for. Over the years, working with dozens of clients who suspect gluten is at the root of their symptoms,…

Categories Coeliac Disease

Nutritional Deficiencies After a Coeliac Diagnosis: Why a Gluten-Free Diet Alone Is Not Enough

July 1, 2026March 19, 2026 by Alex Mercer
Nutritional Deficiencies After a Coeliac Diagnosis: Why a Gluten-Free Diet Alone Is Not Enough — image 1

One of the most common misconceptions I encounter in my practice is the belief that a coeliac diagnosis, followed by a strict gluten-free diet, is the end of the story. In reality, for many of my clients, it is only…

Categories Coeliac Disease

Hidden Gluten: The Unexpected Sources I Find in Almost Every New Coeliac Client’s Diet

July 4, 2026March 18, 2026 by Alex Mercer
Hidden Gluten: The Unexpected Sources I Find in Almost Every New Coeliac Client's Diet — image 1

In my practice, I work with many newly diagnosed coeliac clients who arrive convinced they have already mastered the gluten-free diet. They have cleared out their bread bin, switched to gluten-free pasta, and stopped eating at their favourite pizza restaurant….

Categories Coeliac Disease

Newly Diagnosed with Coeliac Disease: The First 10 Things I Tell Every New Client

July 4, 2026March 17, 2026 by Alex Mercer
Newly Diagnosed with Coeliac Disease: The First 10 Things I Tell Every New Client — image 1

If you have just received a coeliac diagnosis, I want you to take a breath. The flood of information, the questions about what you can eat, and the worry about accidental exposure can feel completely overwhelming — and that reaction…

Categories Coeliac Disease

Nutrient Deficiencies in Crohn’s Disease: Why These Are Always My First Priority at Consultation

July 4, 2026March 16, 2026 by Alex Mercer
Nutrient Deficiencies in Crohn's Disease: Why These Are Always My First Priority at Consultation — image 1

Almost every new client I see living with Crohn’s disease arrives with at least one significant nutritional gap — and more often than not, several. Crohn’s disease nutrient deficiencies are not a side effect or an occasional complication. They are…

Categories Crohn's Disease & IBD

Crohn’s Disease vs Ulcerative Colitis: Key Nutritional Differences Every Patient Should Understand

July 4, 2026March 15, 2026 by Alex Mercer
Crohn's Disease vs Ulcerative Colitis: Key Nutritional Differences Every Patient Should Understand — image 1

When it comes to crohn’s disease vs ulcerative colitis nutrition, I want to be honest with you: the overlap is real, but so are the differences — and those differences matter more than most people realise. In my practice, I…

Categories Crohn's Disease & IBD

Anti-Inflammatory Eating for IBD: The Dietary Foundations I Build Every Client’s Plan Around

July 1, 2026March 14, 2026 by Alex Mercer
Anti-Inflammatory Eating for IBD: The Dietary Foundations I Build Every Client's Plan Around — image 1

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…

Categories Crohn's Disease & IBD Tags gut healing foods

Best Probiotics for Crohn’s Disease and IBD: What I Actually Recommend After Years in Practice

June 30, 2026March 13, 2026 by Alex Mercer
Best Probiotics for Crohn's Disease and IBD: What I Actually Recommend After Years in Practice — image 1

If you or someone you love has been diagnosed with Crohn’s disease or another form of inflammatory bowel disease, you have almost certainly stumbled across advice to “just take a probiotic.” I wish it were that simple. Finding the best…

Categories Crohn's Disease & IBD

What I Feed Clients During a Crohn’s Flare: The Low-Residue Diet Protocol That Actually Helps

July 4, 2026March 11, 2026 by Alex Mercer
What I Feed Clients During a Crohn's Flare: The Low-Residue Diet Protocol That Actually Helps — image 1

In my years of practice as a nutritionist, few situations are as distressing — for both client and practitioner — as a Crohn’s disease flare. The right crohn’s disease flare diet can dramatically reduce symptoms and shorten recovery time. The…

Categories Crohn's Disease & IBD

Elimination Diet for Food Sensitivities: My 6-Week Experience and What I Learned

July 1, 2026March 10, 2026 by Alex Mercer
Elimination Diet for Food Sensitivities: My 6-Week Experience and What I Learned — image 1

My gastroenterologist recommended an elimination diet for food sensitivities after months of unexplained bloating, unpredictable bathroom trips, and a general sense that my gut was working against me. I thought it would be two weeks of misery — plain chicken,…

Categories Food Intolerances & Sensitivities Tags elimination diet, FODMAP diet, food intolerance
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