What Is the Autoimmune Protocol?

The Autoimmune Protocol (AIP) is a specialised elimination diet designed specifically for individuals with autoimmune conditions. It was developed by Dr. Sarah Ballantyne, drawing on research linking intestinal permeability, gut dysbiosis, and immune dysregulation to autoimmune disease progression. Unlike a standard elimination diet, AIP removes additional food categories that have been shown to increase intestinal permeability or activate the immune system in susceptible individuals.

Clinical research supports its efficacy. A 2019 study published in Inflammatory Bowel Diseases found that AIP achieved clinical remission in 73% of participants with Crohn's disease and ulcerative colitis by week 6. A separate trial in Hashimoto's thyroiditis patients showed significant reductions in thyroid antibodies and improvements in quality of life.

Who Should Consider AIP

AIP is most appropriate for individuals with diagnosed autoimmune conditions who have not achieved adequate symptom control through conventional treatment alone. Common conditions where AIP has shown benefit include:

  • Inflammatory bowel disease — Crohn's disease and ulcerative colitis
  • Hashimoto's thyroiditis — the most common cause of hypothyroidism
  • Rheumatoid arthritis — inflammatory joint disease
  • Psoriasis and psoriatic arthritis
  • Multiple sclerosis
  • Lupus (SLE)
  • Celiac disease (in addition to strict gluten avoidance)

The AIP Elimination Phase

The elimination phase removes all foods known or suspected to increase intestinal permeability, trigger immune activation, or promote gut dysbiosis. This phase lasts a minimum of 30 days, though many practitioners recommend 60-90 days for individuals with more severe or long-standing autoimmune conditions.

Foods Removed on AIP

  • All grains — including gluten-free grains like rice, corn, oats, and quinoa. Grains contain lectins and other anti-nutrients that may increase intestinal permeability
  • All legumes — beans, lentils, peanuts, soy. These contain saponins and lectins that can disrupt the gut barrier
  • All dairy — casein and whey proteins can trigger immune responses in autoimmune patients
  • Nightshade vegetables — tomatoes, peppers, eggplant, potatoes, and spices derived from nightshades (paprika, cayenne, chilli powder). Nightshade alkaloids increase intestinal permeability
  • Eggs — particularly egg whites, which contain lysozyme that can cross a compromised gut barrier
  • Nuts and seeds — including seed-based spices like cumin, coriander, fennel, and mustard
  • Refined sugars, alcohol, and food additives
  • NSAIDs — ibuprofen and aspirin increase intestinal permeability and should be avoided if possible
AIP is intentionally more restrictive than a standard elimination diet because autoimmune conditions involve a heightened and misdirected immune response. The broader elimination increases the likelihood of removing the specific triggers driving each individual's autoimmune flares.

Foods Encouraged on AIP

AIP is not about deprivation. The following nutrient-dense foods form the foundation of the protocol:

  • Quality animal proteins — grass-fed meat, wild-caught fish, organ meats (the most nutrient-dense foods available), poultry
  • All vegetables except nightshades — emphasise diversity; aim for 8-12 different vegetables daily
  • Fruits in moderation — berries, citrus, tropical fruits, stone fruits
  • Healthy fats — olive oil, avocado oil, coconut oil, animal fats from quality sources
  • Fermented foods — sauerkraut, kimchi, kombucha, water kefir (dairy kefir is excluded)
  • Bone broth — rich in glycine, proline, and glutamine for gut barrier support
  • Herbs and non-seed spices — turmeric, ginger, basil, oregano, thyme, rosemary

The Reintroduction Phase

After the elimination period, foods are reintroduced in a specific order based on their likelihood of being tolerated:

  • Stage 1 (least likely to react): egg yolks, seed-based spices, ghee, legumes with edible pods (green beans, sugar snap peas)
  • Stage 2: nuts, seeds, cocoa, egg whites, grass-fed butter, alcohol in small amounts
  • Stage 3: nightshades (one at a time), coffee, certain legumes, gluten-free grains
  • Stage 4 (most likely to react): gluten-containing grains, dairy, eggs as whole foods

Each food is tested over a 3-day challenge with a 4-day washout period before the next reintroduction. Track symptoms meticulously, including delayed reactions up to 72 hours later.

Practical Tips for Success

  • Batch cook proteins and vegetables on weekends to simplify weekday meals
  • Invest in quality cooking fats and a diverse spice collection to keep meals interesting
  • Connect with an AIP community for recipe ideas and emotional support
  • Do not attempt AIP during a major life stressor — the protocol requires mental bandwidth
  • Work with a practitioner who can monitor your autoimmune markers throughout the process

GutIQ helps individuals with autoimmune conditions understand their gut health status before, during, and after dietary protocols like AIP. Because the gut-immune connection is foundational to autoimmune disease management, tracking gut-related symptoms alongside dietary changes provides invaluable data for optimising your protocol.