Pill measures gut gas
Swallowable tool may eventually help reveal digestive problems
![gas-sensing capsule](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/02/022016_daily-use_free.jpg?fit=960%2C460&ssl=1)
CAPPED This 3.5-by-1.2-centimeter capsule can be swallowed to measure gut gases and send its findings to a smartphone. Researchers in Australia tested the device in pigs fed different amounts of fiber.
K. Kalantar-zadeh et al/Gastroenterology 2016