Bubble Tea: A Sweet Trend With Hidden Health Concerns

Bubble tea, the colorful Taiwanese drink made with tea, milk, sugar, and chewy tapioca pearls, has become a popular treat worldwide. However, growing research suggests it may carry certain health risks when consumed frequently.

An investigation by Consumer Reports found elevated lead levels in some bubble tea products sold in the U.S. Tapioca pearls, made from cassava starch, may absorb heavy metals from soil during cultivation, raising contamination concerns.

The pearls themselves can also cause digestive issues. Because they are dense and starchy, eating large amounts may slow stomach emptying, potentially leading to nausea, constipation, or even blockage in rare cases. Pediatricians also warn that the pearls can pose a choking hazard, particularly for young children.

Another concern is sugar content. A single serving may contain 20–50 grams of sugar—sometimes exceeding that in Coca-Cola—which can contribute to obesity, tooth decay, and metabolic problems. Experts suggest enjoying bubble tea occasionally rather than making it a daily habit.

05-03-2026