A meat and cheese charcuterie board and a glass of beer or wine may be a great way to wind down at the end of a long workweek, but it might not be a party for your digestive system. If you find your favorite foods are not loving you back, it's time to explore histamine intolerance. Our detailed guide explores 10 common high-histamine foods, possible causes of histamine intolerance and signs of histamine sensitivity, and why a little-known enzyme called DAO plays a key role in how your body processes histamine.