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5 Worst Foods for Autoimmune Disease

Autoimmune diseases include a range of conditions where the immune system mistakenly attacks healthy cells in the body – this could affect anything from your skin to your hormones. While genetics play a role, lifestyle factors shouldn’t be underestimated. That’s why we’ll be exploring five foods known to exacerbate symptoms and trigger inflammation.

The gut microbiome is a diverse community of microorganisms that reside within our gastrointestinal tract, and this microbial ecosystem influences various bodily functions, including digestion, metabolism, and our immune system. The balance between beneficial and harmful microorganisms is essential for maintaining gut health and overall wellbeing – but when we’re dealing with chronic inflammation, the results can be anything but healthy. Researchers are increasingly recognising that imbalances in the gut microbiome can have far-reaching effects on the immune system, potentially contributing to the severity of autoimmune diseases – and what influences our gut microbiome? What we eat. Let’s take a look at some of the foods known to exacerbate symptoms.


Alcohol can be a double-edged sword for those with autoimmune diseases. While moderate alcohol consumption may not be harmful for everyone, excessive drinking can weaken the immune system, promote inflammation, and interfere with medications used to manage autoimmune conditions. It's best to consult with a healthcare provider about alcohol intake specific to your condition.

Deep Fried and Saturated Fats

Fried foods and those high in saturated fats (commonly found in fast food and processed snacks) can fuel inflammation in the body. These fats can disrupt the balance of pro-inflammatory and anti-inflammatory compounds, potentially worsening autoimmune symptoms. Opt for healthier fats like olive oil, avocados, and nuts.

Artificial Sweeteners

Artificial sweeteners like aspartame and sucralose may disrupt gut health, which plays a significant role in autoimmune diseases. Some studies suggest that these sweeteners can contribute to autoimmune disease development. It's wise to limit or avoid them and opt for natural sweeteners like honey or maple syrup in moderation. 

Processed Meats

Processed meats, such as bacon, sausages, and hot dogs, contain additives, preservatives, and unhealthy fats that can trigger inflammation. High consumption of processed meats has been linked to various health issues, including autoimmune conditions. Choose unprocessed sources of protein like lean meats, fish, or plant-based options. 

Added Sugar

Added sugar is a common denominator in many processed and packaged foods, from sugary cereals to sodas. High sugar intake can promote inflammation, disrupt gut health, and contribute to autoimmune symptoms. Reducing or eliminating added sugars from your diet can be a significant step toward managing your condition.

While these five foods are worth avoiding if you have an autoimmune disease – and really, they’re worth avoiding even if you don’t have one – it's essential to remember that individual responses to foods can vary. What triggers inflammation in one person may not do the same in another. Consulting with a healthcare provider or a registered dietitian who specialises in autoimmune conditions is vital for developing a personalised diet plan that suits your specific needs. By making informed choices about your diet, you can empower yourself to manage your autoimmune disease effectively and improve your overall health and wellbeing. 

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So, if you’re ready to ditch sugar and the host of maladies that come with it, it’s not too late to join. We’d love to help you get started on your health journey. Sign up HERE today!

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