Allergies have been on the rise in the last few decades – not just the highly publicized increase in peanut and gluten allergies, but also allergic asthma caused by allergens in the air (like dust mites, mold, or pollen). Poorly controlled asthma and asthma emergencies result in many ER visits. What is causing this trend of increasing allergies?
The hygiene hypothesis – lack of exposure to potential allergens due to homes that are too clean leads to kids being hypersensitive is popular with many folks.
A new paper, however, tests an alternative hypothesis about the increased rate of allergies. Could low fiber consumption in Western diets be to blame?