Even when someone eats a mostly clean diet, frequent consumption of Boba tea (bubble tea) can trigger unexpected blood sugar spikes , as it contains hidden sugars and rapidly absorbable carbohydrates that stress glucose metabolism even in young, healthy individuals.​ Why Boba Tea Causes Sugar Spikes Boba tea is made from tea, milk or creamer, sugar syrup, and tapioca pearls —and sometimes additional fruit syrups or flavored powders . Each component adds sugar, making it more