{"id":94762,"date":"2026-08-20T08:46:00","date_gmt":"2026-08-20T08:46:00","guid":{"rendered":"https:\/\/www.yorktest.com\/us\/?p=94762"},"modified":"2026-09-02T08:57:42","modified_gmt":"2026-09-02T08:57:42","slug":"pollen-food-syndrome-why-raw-fruit-makes-your-mouth-itch","status":"publish","type":"post","link":"https:\/\/www.yorktest.com\/us\/blog\/pollen-food-syndrome-why-raw-fruit-makes-your-mouth-itch\/","title":{"rendered":"Pollen-Food Syndrome: Why Raw Fruit Makes Your Mouth Itch"},"content":{"rendered":"\n

If eating a raw apple, peach or banana makes your mouth itch, especially in the height of spring or summer, you’re not alone. This could be a sign of Pollen-Food Syndrome (PFS), also known as Oral Allergy Syndrome (OAS).<\/p>\n\n\n\n

Pollen-Food Syndrome is a type of food allergy<\/a> caused by cross-reactivity between pollen and certain raw fruits, vegetables, nuts<\/a> and herbs. Because some foods contain proteins that closely resemble pollen proteins, the immune system mistakes them for pollen and triggers an allergic reaction.<\/p>\n\n\n\n

For most people, symptoms are mild and affect only the lips, mouth and throat. However, understanding why these reactions happen can help you manage your symptoms safely and know when to seek medical advice.<\/p>\n\n\n\n

What is Pollen-Food Syndrome?<\/strong><\/h2>\n\n\n\n

Pollen-Food Syndrome is an allergic condition that commonly affects people who have hay fever<\/a>, particularly those allergic to tree, grass or weed pollens.<\/p>\n\n\n\n

Rather than reacting to the food itself, your immune system reacts to proteins within certain raw foods because they are structurally similar to the pollen proteins that already trigger your seasonal allergy.<\/p>\n\n\n\n

This is known as cross-reactivity.<\/p>\n\n\n\n

Unlike a food sensitivity<\/a>, which typically causes delayed digestive symptoms, Pollen-Food Syndrome usually causes symptoms almost immediately after eating the trigger food.<\/p>\n\n\n\n

Why Does Raw Fruit Make Your Mouth Itch?<\/strong><\/h2>\n\n\n\n

The proteins responsible for Pollen-Food Syndrome are often fragile and break down when heated.<\/p>\n\n\n\n

This is why many people experience symptoms after eating raw fruit, but can eat the same fruit once it has been cooked, baked or stewed without any problems.<\/p>\n\n\n\n

When the raw food comes into contact with the lips, mouth or throat, the immune system recognises the similar protein structure and releases histamine<\/a>, causing itching, tingling or mild swelling.<\/p>\n\n\n\n

Which Pollens Are Linked to Which Foods?<\/strong><\/h2>\n\n\n\n

Different types of pollen are associated with different fruits, vegetables and nuts.<\/p>\n\n\n\n\n \n \n \n \n \n \n \n
Pollen allergy<\/th>\n Common cross-reactive foods<\/th>\n <\/tr>\n <\/thead>\n
Birch pollen<\/strong><\/td>\n Apple, pear, peach, cherry, plum, apricot, kiwi, hazelnut<\/td>\n <\/tr>\n
Grass pollen<\/strong><\/td>\n Melon, orange, tomato<\/td>\n <\/tr>\n
Ragweed pollen<\/strong><\/td>\n Banana, cucumber, courgette (zucchini)<\/td>\n <\/tr>\n
Mugwort pollen<\/strong><\/td>\n Celery, carrot, certain herbs and spices<\/td>\n <\/tr>\n <\/tbody>\n<\/table>\n\n\n\n

It is also worth considering, not everyone reacts to every food on these lists, and symptoms can vary from person to person.<\/p>\n\n\n\n

Common symptoms of Pollen-Food Syndrome<\/strong><\/h2>\n\n\n\n

Symptoms usually appear within minutes of eating the trigger food and are generally confined to the mouth and throat.<\/p>\n\n\n\n

Common symptoms include:<\/p>\n\n\n\n