What is the primary risk for individuals allergic to oregano when consuming thyme?
Possibility of cross-reactivity within the Lamiaceae family
Thyme belongs to the Lamiaceae botanical family, which also contains herbs such as oregano, basil, sage, mint, and lavender. For individuals who have known sensitivities or allergies to any member of this specific family, there is a significant potential for cross-reactivity. This means the immune system may react to thyme components in the same way it reacts to the known allergen, such as oregano. These reactions can manifest as gastrointestinal distress or, in severe cases, include itching, swelling of the lips and tongue, difficulty swallowing (dysphagia), and even progressive upper respiratory distress accompanied by facial swelling. Therefore, caution is advised for anyone sensitized to other Lamiaceae members.
