The AIP Diet (Autoimmune Protocol Diet) can be helpful for people with inflammatory diseases. It’s a strict elimination diet that, when followed correctly, can illustrate problematic foods and also reduce inflammation. Read about the benefits of AIP, the two phases, as well as what to eat and what to avoid on the AIP Diet. 

can the aip diet help you

If you’ve dealt with any type of inflammatory disease (think diabetes, allergy, asthma, autoimmune diseases, celiac disease, hepatitis, inflammatory bowel disease, etc.), you may have heard that you should take a look at your diet. And yes, there is truth to this. In fact, at the heart of every major degenerative disease such as diabetes, cardiovascular disease, cancer and Alzheimer’s, is inflammation in our bodies caused by a poor diet.  For many people, particularly those dealing with autoimmune diseases or symptoms of autoimmune diseases, a diet called the Autoimmune Protocol has proved to be incredibly helpful and eye-opening.

So What is the AIP Diet?

The AIP Diet was created in 2011 by Loren Cordain, PhD, a scientist who discovered that certain foods can sometimes trigger inflammation in people with autoimmune disease. The idea behind it was that it could help those with diseases such as Crohn’s disease, rheumatoid arthritis, lupus, Hashimotos and even celiac disease. In addition, for those with autoimmune symptoms who may not have been diagnosed yet, trying the AIP diet can be helpful in trying to determine if foods are contributing symptoms and inflammation. It’s a type of an elimination diet, of sorts, and can definitely be helpful for many.

The AIP diet is stricter than Paleo. The basics include vegetables and clean, lean proteins, but the list is very stringent and needs to be followed closely to reap said benefits. At the end of the day, all of the processed foods, including refined oils, sugars and flours are removed from one’s intake and instead they are flooded with nutrient-dense foods.

If you have symptoms or a condition that has a basis of inflammation, trying the AIP diet can be one tactic to consider. It is important to note that while trying the AIP diet, it’s not only what’s on your plate that is of importance. Considerations must be given to lifestyle as well, including sleep, stress, exercise, and overall happiness, as these factors can also contribute to wellness.

Benefits of the AIP Diet

  • Lowering inflammation
  • Reducing gut irritants
  • Replacing processed foods with nutrient-dense foods
  • Advocating healing and healthy feelings
  • Determining if foods are problematic/cause reactions

Benefits of the AIP Diet

What to Eat on an AIP Diet

  • Wild caught SMASH fish (salmon, mackarel, anchovies, sardines and herring) and shellfish should be enjoyed 3x’s per week.
  • Organ meat such as liver, heart, kidney, tripe and brain should be eaten at least 5x’s per week as they are nutrient-dense with vitamins, minerals, healthy fats and amino acids.
  • Vegetables of all kinds should be enjoyed in an abundance, and should be a main focus for the entirety of the elimination diet
    • Leafy green vegetables can be consumed in abundance. Cooked, raw, steamed, sauteed, or any form will do.
    • Colorful vegetables should also make an appearance often.
    • Mushrooms can provide lots of nutritional benefits and should be included.
  • Quality meats that are grass-fed, grass-finished and pasture raised.
  • Healthy fats including pasture-raised animal fats (ghee), avocado oil, coconut oil, olive oil.
  • Fermented foods such as kimchi, coconut milk kefir, coconut milk yogurt, kombucha, sauerkraut.
  • Bone broth is often a favorite on the AIP diet.
  • Herbs and spices are always welcomed.
  • Fruit, eaten at a minimum. 20 grams/day is optimal.

What to Avoid on an AIP Diet

Now that we’ve looked at foods that you can enjoy on the autoimmune protocol diet, it’s important to look at the foods that should be avoided. This list includes:

  • Alcohol can be a gut irritant and also inflammatory and thus needs to be avoided on this elimination diet.
  • By and large, anything in the dairy family needs to be avoided as it can also be inflammatory.
  • Grains are often a culprit for symptoms and need not be a part of the inclusion during AIP weeks.
  • Eggs can be highly inflammatory and thus are excluded, too.
  • Refined and processed sugars for the same reason cannot be included.
  • Nuts AND seeds are not allowed on AIP.
  • Seed-based teas and coffee are not allowed, either.
  • Nightshades, to include potatoes (aside from sweet potatoes), tomatoes, peppers, eggplants, cayenne, tomatillos and paprika need to be avoided.
  • Any “fake” foods including artificial sweeteners, thickeners (think the gums in dairy-free milks, etc.) and processed foods need to absolutely be avoided, as the goal is to populate the body with real, unprocessed, clean foods.

what to eat and avoid on the aip diet

The Two Phases of AIP

The first phase of AIP

The first phase of the autoimmune protocol is elimination. The goal is to remove foods and medications that may be contributing to the inflammatory state of the body and to balance out bacteria in the gut as well.

During the time of removing potentially problematic foods, these are also replaced with nutrient-dense, fresh, minimally processed foods. Again, it’s important to note that focusing on positive lifestyle factors need not be ignored. Simply following the diet but not addressing stress and sleep may not yield the results one is looking for.

In addition to said foods above, coffee, alcohol, tobacco, sugars, some medications and all NSAID’s (ibuprofen, naproxen, high dose aspirin) must all also be avoided.

The second phase of AIP

The second phase of the AIP diet is the reintroduction phase. Once changes have been made, and foods have been out of the system for a while, individuals attempt to add some of the foods back in slowly, taking note of how they feel to assess tolerance levels.

It’s important to only add back one food at a time and to give 5-7 days in-between adding these back in to accurately assess whether they are bothersome or not. How do you know if they are bothersome? Noting symptoms and feelings, including digestive distress, sleep disturbances, headaches, energy levels and skin irritation can help determine if a food is not being tolerated well. Many find success in keeping a food journal to note these findings.

While adding a food back, a small amount is first included on day 1. If no symptoms appear, the same food is attempted the next day with a normal serving size. Wait 5 days after this day to determine if a reaction occurs

If foods are tolerated, they can be added back into the main diet. At this point, it is safe to move on and test another food

How long should people be on the AIP diet?

Referring back to the idea of bio-individuality, there is no “set time” for one to be on the AIP diet. That said, many people stay on it for 30-90 days but feel positive changes prior to the 30-day mark. It is not suggested that one remains on the diet for longer than a few months for fear that nutrient requirements and diversity of foods may not be met. For this reason, moving the reintroduction phase should not be skipped.

Side Effects & Precautions

At the end of the day, this is an elimination diet and is restrictive. As noted above, nutrient deficiencies and lack of diversity may result. It also can be cumbersome in social settings and prove difficult to eat outside of the house. Adding stress is definitely not the goal for someone with autoimmune conditions, so if it becomes stressful, it may deem another look to determine if it’s actually worthwhile.

There are no guarantees that the AIP diet will work. While the goal is to reduce inflammation, however, one may unearth some problematic foods while working through this practice and ultimately feel better in the process.

One last note: autoimmune diseases cannot be cured but instead must be managed. Perhaps thinking of the AIP diet as a tool in management is a more realistic approach vs. assuming that the disease can go away as a result. It’s also important to note that having a health coach or medical personnel who is knowledgeable in this area can be most helpful in navigating the process.



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