After a run, you want to feel exhilarated, strong, confident—not bloated. But feeling puffy and uncomfortable after logging a few miles really isn’t uncommon. So what’s going on?

‘When people say they feel bloated, mostly what they feel is not food but air,’ says Daniel Freedberg, M.D., a gastroenterologist and Assistant Professor of Medicine at Columbia University Medical Center. ‘Usually, it’s air in the colon, which is kind of a storage unit that can be decompressed like a balloon; it can be flat and almost nothing, or it can be all full of air and really big in volume. And when it’s big and full of air, people feel bloated and uncomfortable.’

Source: 3 Reasons You’re Always So Bloated After Running – WomensHealth