Hi Reader,

Years ago, I started reacting badly to bread.

Not in an obvious, dramatic way. Just that low-level, hard-to-pin-down feeling of not quite right. The kind of thing that's easy to dismiss. The kind of thing doctors tend to wave away.

But I knew my body. And I knew something in the bread was doing it.

So I started reading labels.

And the first thing I found was calcium propionate. A preservative. E282. Added to extend shelf life.

When I looked into it, I found it had been linked to irritability, sleep disturbance, and gut issues in some people. It was in a huge number of breads – including ones that looked wholesome and natural on the front of the packet.

That was the moment everything changed.

Because once you start reading labels, you can't stop.

And once you start reading labels, you start to see something that nobody in the food industry particularly wants you to notice.

The front of the packet is marketing.

The back of the packet is the truth.

You pick up a loaf that has a beautiful wheat field on the front. Artisan. Stone-baked. A lovely font. Maybe some words like "natural" or "no artificial colours."

You turn it over.

And there it is.

E471. E472e. E481.

Emulsifiers. Added to make the bread softer. To give it a longer shelf life. To keep the texture consistent whether it was made in a factory in Leeds or one in Glasgow.

And I started to wonder – what are these actually doing to us?

But here's what I need to say before we go any further.

Because I don't want anyone to read this and think – fine, I'll just find a bread without emulsifiers in it and I'll be okay.

That's not the full picture.

For those of us with hypothyroidism, and especially Hashimoto's, the grain itself is a problem.

Not just what's been added to it.

Gluten and other proteins in grains can damage the gut lining directly. They trigger an immune response. They drive inflammation. And in people with autoimmune thyroid conditions, that inflammation isn't just uncomfortable – it is part of the mechanism of the disease itself.

Leaky gut – where the gut lining becomes permeable and things cross into the bloodstream that shouldn't – is now understood to be one of the very first steps on the road to autoimmunity.

Not a consequence of autoimmunity.

A precursor to it.

Which means that healing the gut isn't just a nice idea. For many of us, it may be the most important thing we can do.

And most modern diets – even ones that look healthy on the surface – are working directly against that.

Going gluten-free is a start. Going grain-free goes further.

But even then – and this is where the emulsifiers come back in – the processed food that replaces the bread and the pasta and the crackers can be doing just as much damage through a completely different mechanism.

The organic plant milk.

The gluten-free bread with fifteen ingredients.

The "clean" snack bar.

The artisan ice cream.

Emerging research is now raising serious questions about emulsifiers – the additives used in thousands of processed foods to create smooth textures, longer shelf lives, and uniform appearance.

In animal studies, common emulsifiers like CMC and Polysorbate 80 were shown to thin the protective mucus wall lining the gut, disrupt the balance of gut bacteria, increase gut permeability, and drive inflammation.

The original safety assessments on these ingredients were done before we knew much about the gut microbiome.

The science is still developing. But the direction it's heading is not reassuring.

And the most sobering part? These emulsifiers don't just turn up in bread. They're in ice cream, chocolate, plant milks, margarine, processed meats, ready meals, and hundreds of products marketed as healthy alternatives.

In the UK alone, more than 6,000 foods contain them.

So the problem isn't just grain.

And the solution isn't just going gluten-free.

The gut needs real food. Scratch-cooked food. Food that doesn't need a list of additives to stay shelf-stable or look appealing.

An egg doesn't need an emulsifier.

A piece of meat doesn't. Fruit doesn't. Good quality cheese doesn't.

The emulsifiers are there because processing requires them.

And our guts – already under pressure from thyroid conditions, autoimmune responses, and a medical system that rarely joins these dots – are paying the price.

Hippocrates said it more than 2,000 years ago.

All disease begins in the gut.

He had no idea about emulsifiers, or leaky gut, or Hashimoto's.

But he was right.

And the more we understand about what's quietly in our food, the more obvious it becomes that protecting gut health isn't a wellness trend.

For those of us with thyroid conditions, it's fundamental.

Reading labels is where it starts.

It feels overwhelming at first. The E numbers look like a secret code. The chemical names are impenetrable.

But once you get your eye in, it becomes second nature. You glance at the back of a packet and you know within seconds whether it's something you want to put in your body.

It just takes a little learning at the beginning.

Which is exactly why I made this.

I've put together a small printable card listing the most common emulsifiers to look out for on food labels – the E numbers, the chemical names, and which everyday foods they most commonly turn up in.

Print it out. Fold it up. Keep it in your bag while you're learning.

After a while, you won't need it. You'll just know.

👉

Avoiding processed food – and for many of us, grains altogether – is one of the single most powerful things you can do when you're managing a thyroid condition.

Not because you need to be perfect.

But because the cumulative effect of what's quietly in our food, day after day, meal after meal, adds up.

Most of us were never told to look.

Now you know what to look for.

P.S. The Guardian article that started this train of thought is here if you want to read more:
​ https://www.theguardian.com/lifeandstyle/2023/jun/29/the-truth-about-emulsifiers-gut-health-microbiome​

And if you want to be somewhere that joins these dots regularly – food, gut health, thyroid function, and what the research is actually saying – come and have a look inside the Hypothyroid Recovery Hub.
There's a 7-day free trial right now, and access to a Hashimoto's diet quick start guide.

👉 https://www.skool.com/hypothyroid/about​

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