Oats, Avenin & Coeliac Disease: What the Latest Research Means for You Released by the Coeliac Society April 2026

There’s been a lot of conversation lately about oats and whether they belong in a gluten-free lifestyle especially here in Australia.

The latest update from Coeliac Australia helps bring much-needed clarity to this topic. While oats have always been a little controversial, we’re now seeing stronger evidence, better understanding, and a more balanced approach.

So, what does this mean for you?
Let’s walk through it together in a simple, practical way.

We have looked at the new 26 page overview and summarised as best we can.

Why Are Oats So Confusing?

Oats have been debated for decades.
As outlined in the latest guidance, oats were actually removed from gluten-free diets in the 1970s as a precaution. But since the 1990s, research has shown that oats are quite different from wheat, rye, and barley. (It wasn’t realised that essentially oats were contaminated throughout the supply chain.) 

The key difference comes down to protein.

• Wheat, rye, and barley contain gluten proteins that damage the gut in people with coeliac disease
• Oats contain a different protein called avenin 

And this is where things get interesting…

What Is Avenin?

Avenin is often described as a “gluten-like” protein - but it behaves very differently in the body.

According to the research:

• Avenin triggers a reaction in less than 10% of people with coeliac disease
• For the majority, it does not cause the same intestinal damage as gluten
• Even when a reaction occurs, it doesn’t always lead to long-term harm 

In simple terms, most people tolerate oats well but not everyone.
That’s why oats are considered a personal choice, not a one-size-fits-all rule.

The Biggest Risk: Contamination - Not the Oat Itself

One of the most important takeaways from the update is this:
👉 The biggest issue with oats is contamination - not the oat grain itself.

Regular oats are often grown, harvested, and processed alongside wheat, rye, and barley. This leads to cross-contact with gluten at multiple stages.

In fact, studies show that standard oats can contain very high levels of gluten contamination. 
That’s why:

• Regular supermarket oats are not suitable for people with coeliac disease
• Only specially produced oats that minimise contamination should ever be considered 
  

What Are “Pure” or Specially Produced Oats?

Specially produced oats (often referred to as “pure” or “uncontaminated”) are grown and processed using strict controls to prevent contact with gluten-containing grains.

This can include:

• Dedicated fields (no wheat, rye, or barley rotation)
• Clean harvesting and storage systems
• Strict testing for contamination 

These methods are often referred to as a purity protocol.

And this is where quality and trust really matter. GF Oats are the only brand in Australia that follow this protocol.

Why Consider Oats at All?

You might be wondering if oats are complicated, why include them?
The answer is simple: nutrition and quality of life.

• According to the update, oats offer benefits that are often lacking in a gluten-free diet:
• High in fibre - especially beta-glucan for gut and heart health
• Rich in vitamins and minerals like iron and B vitamins
• Support gut health through prebiotic fibres
• Provide plant-based protein
• Help improve diet variety and satisfaction 

In fact, studies show that including oats can improve overall diet quality and even quality of life for many people with coeliac disease.

Do Most People Tolerate Oats?

The evidence is quite reassuring:

• The majority of people with coeliac disease tolerate uncontaminated oats
• A small percentage (<10%) may react
• Reactions can vary from mild symptoms to immune responses 

Interestingly, some research suggests that tolerance may even improve over time with gradual introduction. 

However, there is currently no way to predict who will tolerate oats and who won’t.

Introducing Oats: Why It Needs to Be Done Carefully

Because of this variability, Coeliac Australia recommends a cautious approach.

If you’re considering oats:

• Speak with your healthcare professional first
• Introduce only specially produced oats
• Start with small amounts and increase gradually
• Monitor symptoms and overall health 

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An “oat challenge” may be recommended, which involves regular intake over a period of time under supervision. 

The key message is simple:
👉 Oats are optional and should always be an informed, supported decision

Read stories from our customers who have completed the oat challenge

Why Oats Still Can’t Be Called “Gluten Free” in Australia

This is one of the biggest sources of confusion.

Under Australian law:

• No oats can be labelled “gluten free”
• Even specially produced oats must still declare gluten on the label 

This is very different from countries like the US, Canada, and Europe, where oats can be labelled gluten-free if contamination is below a certain level. 

Because of this, you may see terms like

• “Wheat free” (which we do not approve of, it’s a made-up term and does not mean it won’t contain wheat, rye and barley) 
• “Uncontaminated”
• “Pure oats” 

Unfortunately, these terms are not standardised, which can make shopping confusing.

What to Look for When Choosing Oats

If you decide to include oats, the guidance suggests looking for:

• Clear indication they are specially produced (e.g., pure/uncontaminated)
• No “may contain wheat, rye, or barley” statements
• Transparency from the brand about testing and sourcing 

It’s also recommended to check whether the oats are tested to low gluten levels (ideally ≤20ppm or lower). 

The Future of Oats in Australia

Coeliac Australia recognises that change is needed to reduce confusion.

Some proposals include:

• Creating clearer naming standards for oats
• Introducing defined contamination limits
• Improving labelling (e.g., identifying “avenin” instead of “gluten” for oats) 
  

The goal is to strike a balance:

• Supporting those who can tolerate oats
• Protecting those who cannot 

Where GF Oats Fits Into This Conversation

At GF Oats, this is exactly the space we operate in.

We understand:

• The confusion around oats
• The importance of trust and transparency
• The need for truly clean, carefully produced products 

That’s why our approach focuses on:

• Strict growing and processing protocols
• Dedicated systems to prevent contamination
• Independent batch testing for peace of mind 

Because when it comes to your health, “close enough” simply isn’t good enough.

Takeaways

The latest research brings a refreshing level of clarity:

• Oats are not the same as gluten-containing grains
• Most people with coeliac disease can tolerate pure oats – 90%
• Contamination is the biggest risk
• Individual response matters
• Officially deciding what they are going to call oats if they don’t call them ‘gluten free oats’ like the rest of the world will no doubt call more confusion which is unfortunate 

Most importantly, it reinforces that you have choices.

With the right information, the right support, and the right products you can make decisions that work for your body and your lifestyle.

If you’re considering introducing oats into your diet and want to understand more about how our oats are grown, tested, and handled, our team is always here to help.

Because everyone deserves oats they can truly trust.

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FAQ's

Are Oats Gluten Fee? 

Technically speaking, yes. Though they can be contaminated during growing, and transport. Oats do contain avenin, which is different to gluten, but some Coeliacs can react to.

What is Avenin in Oats? 

Avenin is often described as a “gluten-like” protein - but it behaves very differently in the body.

Can Coeliacs Eat Oats? 

Yes, though a medically supervised 'Oat Challenge is recommended, done so using oats that are free from gluten contamination. Up to 10% of Coeliacs can react to the Avenin in oats.