oral allergy syndrome chart foods list

Oral Allergy Syndrome Foods List Complete With All Pollen Allergy Possibilities

In Environmental Allergies, Food Allergy Natural Treatment by Anthony10 Comments

oral allergy syndrome chart foods list

Oral allergy syndrome or OAS is an allergic reaction of the skin and mucus membranes caused by raw fruits, vegetables, spices and nuts because they contain a protein that is structurally similar to that of pollen you are allergic to. This condition is very common in people who have allergies to the seasons(weeds/trees/grasses). Here’s an oral allergy syndrome foods list that I’ve compiled for convenience as well as an oral allergy syndrome diet to follow during the seasons that you experience these symptoms.

Oral Allergy Syndrome Foods List

If you have this condition, as do I, it can be annoying to search for the foods that you should avoid during the allergy seasons. As a health-conscious person, I know that I should avoid foods that I am going to have a reaction to because these allergies can cause long-term damage and inflammation to the body. (1)

If you have allergies to the seasons and you react to certain foods, be sure to avoid them until you cure the root causes of your allergies in the first place. Avoidance of an allergic reaction is the first step to curing them naturally.

Foods To Avoid For Spring Allergies (Birch Pollen)

In the spring, usually starting around February and ending in May, you may experience a cross-reaction to the proteins in foods with the pollen from birch trees that you are allergic to. If you are first learning of this, it may make a lot of sense because it has happened to you throughout your life. It was probably very annoying and stressful to eat foods that made you itchy during some times of the year.

In the spring, if foods make you itchy then you should avoid the following:

  • Fruits: Peaches, Kiwi, Apples, Pears, cherries, plums
  • Vegetables: Celery, potatoes, carrots
  • Nuts: Walnuts, hazelnut, soybean, peanuts
  • Spices/herbs: Parsely, Caraway, Fennel, Coriander, Aniseed

Foods to Avoid for Fall Allergies (Ragweed Pollen)

In the fall, starting at the end of August and ending when the ground first sticks with snow or ice, the air will be filled with ragweed pollen. These little devils are the common weeds you see on the edges of highways.

Foods that cross-react with ragweed pollen protein include:

  • Fruits: Banana, cantaloupe, honeydew, watermelon, zucchini, cucumber, kiwi

Ragweed allergy is very common in North America and especially Canada.

Foods to Avoid for Summer Allergies (Grass Pollen)

In the summer, its not uncommon to be allergic to grass pollen. Usually, this stuff doesn’t travel in the wind too much, but since we mow our lawns so often, the pollen gets frequently kicked up into the area we breathe and in our faces, through our windows, etc.

If your skin or eyes get itchy when someone is mowing a lawn nearby, you are allergic to grass pollen. If you have oral allergy syndrome, these foods will bother you:

  • Vegetables: Celery, potatoes, swiss chard
  • Fruits: Watermelon, honeydew, cantaloupe, peaches, oranges
  • Legumes: peanut

Foods to Avoid for Late Summer to Early Fall Allergies (Mugwort Pollen)

A lesser-understood allergy season is for mugwort pollen. This plant pollenates from August to October and are located at the edges of small bodies of water. This plant is originally from Asia, but somebody must have intentionally brought seeds to Europe and North America so that we could suffer from more allergies.

Mugwort is beginning to appear in higher amounts in North America during the pollen seasons, and in some areas in Europe, the plant thrives year-round as an invasive species.

If this allergy season affects you and you suffer from oral allergy syndrome, avoid the following foods:

  • Vegetables: Broccoli, bell pepper, cabbage, carrot, cauliflower, celery, onion
  • Spices: Garlic, black pepper, aniseed, caraway, coriander, fennel, mustard
  • Tea: Chamomile, mugwort

Latex Oral Allergy Syndrome Foods

If you are allergic to latex, you can also suffer from oral allergy syndrome from a cross-reaction of proteins in food with latex. This is a very strange phenomenon that is usually overlooked, so if you can’t determine the cause of your oral allergy symptoms, this may be it. (2)

Here is an oral allergy foods list for latex:

  • Fruits: avocado, banana, fig, kiwi, peach, tomato
  • Vegetables: Bell pepper, white potato
  • Herbs: chestnut

Oral Allergy Syndrome Chart

Here is a compounded chart of all the foods and seasonal allergies that can cross-react. Some websites will give a varying degree of foods for each pollen, and I tried to collect them all.

oral allergy syndrome foods list chart

Oral Allergy Syndrome Diet

If you suffer from oral allergy syndrome symptoms, it is best to change your diet around that condition so that your body does not experience uncomfortable reactions, which can lead to long-term damage and inflammation.

This inflammation leads to an even further exacerbation of allergies and even more discomfort. The only way you can treat the root cause of your allergies naturally, you will need to avoid allergic reactions. This will allow your body to reach a point free from inflammation so that it can start healing its conditions.

In nature, we would not be this affected by pollen and strange allergies because our lifestyle would allow us to detoxify and rest as evolution intended. However, society and culture has changed our lifestyles to fit the needs of a fast-paced and demanding day.

So, to get rid of your oral allergy syndrome, along with avoidance of the foods that bother you, try to fix your diet and lifestyle in other ways that will help you out.


It’s important to be hydrated if you experience allergic reactions because histamine is very dehydrating. Adequate pure water as well as drinks and foods that contain electrolytes will be effective. Coconut water and bananas are great for hydration if you aren’t allergic to them.

Reduce Stress

Stress increases cortisol and stress levels in the body that cause inflammation. This can further exacerbate allergic reactions and make it harder for you to treat them. Yoga, meditation and a warm bath is always nice.

Support Your Digestive System

The majority of the immune system, which works with allergies, is located in your gut. You can reduce the load on your immune system by avoiding foods that harm your gut, like sugars and salt. Make sure that you implement probiotic and prebiotic foods because they have what you need to maintain a healthy intestinal environment.

Cooking Offending Foods

Cooking will denature the protein that cross-reacts with the pollen you are allergic to. Raw carrots trigger my oral allergy syndrome symptoms, but once I cook them in boiling water, I Can eat them just fine.

Rapidly freezing the foods can also denature the protein in some cases.


I am always here for you, so if you have a question or something to add about this oral allergy syndrome foods list, please leave me a comment below!

Talk to you soon,


Oral Allergy Syndrome Foods List Complete With All Pollen Allergy Possibilities was last modified: November 8th, 2018 by Anthony


  1. Thank you for your comprehensive list and notes. In your knowledge of OAS, would it be possible to have OAS to only: pineapple (my initial reaction), avocado, peanuts and soy? I am not able to find information regarding only these types of reactions, with no other fruit/veggie reactions. Pineapple and avocado occurred before my pregnancies and the others followed soon after my second. I also have local reactions to latex. Swelling, burning, etc.

    I am becoming more and more desperate to get answers so I apologize if this is too much to ask in a comment section 🙂 thank you for reading!

    1. Author

      Yes it’s possible to only react to certain kinds of fruits and vegetables on this list if you have oral allergy syndrome. I am also the same way. A select few of them resonate with me, and others not at all. The OAS could also resonate with pollen allergies during each season. Let me know what you think!

  2. So what raw fruits and veggies can I eat with OAS, because eating grains and cheese and meat day in and day out is unhealthy and extremely boring.

    1. Author

      Did you read my article? The entire thing is basically talking about how you can avoid eating the same bland food with oral allergy syndrome.

  3. Has anyone had any success improving their OAS by taking probiotics and vitamin C? I have read a few different studies where probiotics have immensely helped allergy suffers, and one study where those with OAS took vitamin C daily and had their symptoms improved. I would also be interested in learning about foods that are of low reactivity. I am vegetarian and gluten free, and have become increasingly sensitive to raw fruits and vegetables over the past year. It started with watermelon- I would get a funny feeling after eating it similar to a migraine coming on (wheat and gluten gives me migraines as well), then avocado, carrot, apple, cucumber, and possibly banana and honeydew. One week I could eat an apple fine and the next my mouth would be so itchy. I’m nervous to try new fruits and vegetables and am anxious about getting proper nutrition. This has really thrown my diet off and I am now concerned about ever eating out or eating when I don’t have control over the food being served :/
    Any advice is appreciated!!!

    1. Author

      Hey there,
      Actually, that is a huge coincidence because I made a post a few days ago about being vegetarian with oral allergy syndrome. You should definitely check it out because I was in the same position as you during my early college years. However, a vegetarian oral allergy syndrome book helped me eat meat-free and gluten-free as well and I felt absolutely amazing. I highly recommend cooking your food and during pollen allergy seasons that affect your oral allergy syndrome, to make low-sodium broth soup by simmering vegetables and a gluten-free grain. This is very healthy and healing for your digestive system and can start treating the root cause of your oral allergy syndrome symptoms with nutrition. Let me know what you think!

  4. Thanks for putting this together — it’s much more comprehensive and useful than most other sites. I have one comment and one question:

    Comment: Like you, I was concerned about powering through and eating reaction-causing
    fruits and vegetables due to fear of my body’s inflammatory response. I now believe that it’s okay to eat small amounts of foods that cause a mild reaction because any inflammation is local to the areas the food came in contact with.

    This is in contrast to true allergies — such as allergies to nuts or shellfish — that cause a systemic reaction, meaning your whole body suffers from the inflammatory response. Those foods to which I have a true allergy I avoid completely.

    Question: Do you have a list of fruits and vegetables that tend NOT to cause any reactions? I am creating an OAS challenge chart for myself to see what kinds of fruits and vegetables I can eat raw and would love to start with the lowest hanging fruit, so to speak. ; )

    1. Author

      Hey Andrew,
      Thanks for the reply. So your question is in regards to foods that are least likely to be affected by oral allergy syndrome? Besides water, it’s really unsafe to say because there are rising accounts of people saying that the craziest things activate their oral allergy syndrome symptoms. For instance, somebody will mention alcohol, white sugar, or grapes. When I had originally thought your same question, the future held more confusion. Generally though, animal protein would be a good start I guess. I will update you after some thought.

  5. Your oral allergy syndrome chart and foods list are very helpful. Better than other blogs that are so vague, but yours seems very complete. Thanks.

    1. Author

      I tried to consider all of what other blogs and websites were saying regarding oral allergy syndrome charts and what they said would cross-react. Some are just not true. Some can’t really be trusted. I have oral allergy syndrome to 3 seasons, so I think I can tell at this point LOL

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