Keris Marsden 23/10/2026 Keris Marsden 23/10/2026

Digestive Enzymes for Allergies and MCAS: Choosing the Right Type

Fungal, fruit or animal? How to choose digestive enzymes if you have MCAS or food allergies, with the brands I use and when to see your GP instead.

Keris Marsden 21/10/2026 Keris Marsden 21/10/2026

Nutrition & Lifestyle Thyroid Support

Your thyroid sets the pace for almost every system in the body. Here are the signs to look out for, how to get tested in the UK, the nutrients your thyroid relies on and the food and gut support I use with clients.

Keris Marsden 20/10/2026 Keris Marsden 20/10/2026

Cromolyn: The MCAS GI Medication Nobody Offered Me

I was offered almost every gut medication going, but never cromolyn. This old mast cell stabiliser, which evolved from a medicinal herb, has made a huge difference to my MCAS gut symptoms. Here’s its history, how it works, why it’s so rarely prescribed in the UK, where people get it, and how I started low and slow.

Keris Marsden 19/10/2026 Keris Marsden 19/10/2026

MCAS and DAO: Comparing UK Diamine Oxidase Supplements

DAO is the enzyme that breaks down histamine from food. For people with MCAS, taking it before meals can mean fewer reactions, especially when eating out or eating histamine-rich foods. Here’s how it helps, what it can’t do, and how nine UK DAO supplements compare on price and ingredients.

Keris Marsden 08/08/2026 Keris Marsden 08/08/2026

Collagen or a Good Cry? What You Might Really Need

Collagen, turmeric, magnesium, omega 3s: when your joints ache, it’s tempting to reach for yet another supplement. But pain is rarely about one thing. Here’s why the nutritional basics, movement you actually enjoy and a nervous system that feels safe may matter more than anything in a capsule.

Keris Marsden 13/04/2026 Keris Marsden 13/04/2026

Perimenopause, Menopause and MCAS-Connection

Does perimenopause trigger MCAS, or reveal it? Drawing on my own experience and clinical work, I explore the link between oestrogen, mast cells and menopause symptoms.

Keris Marsden 30/03/2026 Keris Marsden 30/03/2026

MCAS & Me: My Journey With Mast Cell Activation Syndrome (MCAS)

For nearly seven years I lived with Mast Cell Activation Syndrome. Here's what conventional approaches missed, what actually worked, and how it changed the way I support clients.

Keris Marsden 30/09/2023 Keris Marsden 30/09/2023

Battling a bad gut? Here’s your options

If you have ongoing gut issues, it can be hard to know who to see. Here's a guide to your options, from your GP to nutritional therapy.

Keris Marsden 04/09/2023 Keris Marsden 04/09/2023

Steps to beat the bloat Part 1

Bloating is rarely down to one cause. Here are the first five steps to beat the bloat, starting with what, how and when you eat.

Keris Marsden 04/09/2023 Keris Marsden 04/09/2023

Steps to beat the bloat Part 2

Often it isn't the food but your digestive function. Here's how to support enzymes, stomach acid and motility to ease bloating.

Keris Marsden 02/09/2023 Keris Marsden 02/09/2023

How to do an elimination diet: part 2

The reintroduction phase is where you find out what's really a problem for you. Here's how to test foods like dairy and gluten.

Keris Marsden 02/09/2023 Keris Marsden 02/09/2023

How to do an elimination diet: part 1

An elimination diet can help pinpoint food intolerances and sensitivities. Here's how to approach it safely and effectively.

Keris Marsden 01/09/2023 Keris Marsden 01/09/2023

Food intolerances and food allergies

Food reactions are common, and intolerances and allergies are easily confused. Here's how to tell them apart and what to do next.

Keris Marsden 30/08/2023 Keris Marsden 30/08/2023

Troubleshooting gut issues: constipation, loose stools, gas and reflux

Occasional gut issues are common and there may be simple fixes. Here's how to troubleshoot constipation, gas, loose stools and reflux.

Keris Marsden 30/08/2023 Keris Marsden 30/08/2023

Quick guide to choosing a probiotic

There are hundreds of probiotics to choose from. Here's a quick guide to help you decide whether you need one and which to pick.

Keris Marsden 23/08/2023 Keris Marsden 23/08/2023

What to eat and what to avoid for good gut health

Food is a game changer for gut health. Here's what to eat to support your digestion and microbiome, and what to limit.

Keris Marsden 22/08/2023 Keris Marsden 22/08/2023

Is your digestion healthy?

Your gut makes all sorts of noises, so how do you know what's healthy? Here are the signs your digestion needs some attention.

Keris Marsden 24/07/2023 Keris Marsden 24/07/2023

My IBS Journey

I was diagnosed with IBS at the age of 22.

My GP suggested a gluten and dairy free diet and emphasized the need to implement some stress management strategies as I’d observed a significant worsening of symptoms .