The Signal: Allergies cost Americans $18B+/yr. With ~50m sufferers, they’re the 6th-leading cause of chronic illness. They’re also becoming increasingly common. 

Google searches for allergy tests have never been higher. Subscribers to Reddit’s r/Allergies have doubled since 2020. There are 347k global searches/mo. for “allergy,” and 169k for “allergy symptoms,” per Ahrefs.

As the number of people suffering from both food and environmental allergies grows, need is rising in markets like: