The allergens in rice are called Ory s 1 and Ory s 12. They are both considered to be airway allergens.

Ory s 1 is a beta expansin protein. These are found in the cell walls of plants and are a common cause of grass pollen allergies.

Ory s 12 is a profilin protein, most commonly causing allergic reactions in the airway, like hayfever.

Food Protein Induced Enterocolitis Syndrome (commonly known as FPIES) is often triggered by rice. After milk and soya milk, rice is one of the most common foods which triggers FPIES in children.

Rice contains lectins, with higher amounts in brown rice or wild rice over more processed white rices. Lectins can cause food intolerance symptoms in some people. The amount of lectin protein in food can be reduced by cooking for longer or soaking grains in water and rinsing before cooking. This breaks down the proteins and reduces reactions.

Allergic reactions to rice are commonly linked to Food Protein Induced Enterocolitis Syndrome (FPIES).

Only barley contains beta expansin proteins as food allergens. As an airway allergen, multiple species of grasses, rye and maize all contain beta expansin.

Profilin proteins are both food and airway allergens. Other profilin airway allergens are ragweed, wormwood, grasses, birch trees, sunflower, olive, plantain, poplar, oak and maize.

Let me know if you found any of these interesting or useful. If you spot an article or research that you think is interesting you can message me or tag me on Facebook or Twitter - links at the bottom of the page.