Body odor is a natural part of being a mammal with sweat glands. But despite the most rigorous hygiene routine, sometimes bad body odor can't be helped. That is, sometimes the pungent body odor is caused by genetic mutations that are out of a person's control.
In the most extreme case, a genetic condition known as trimethylaminuria, or fish odor syndrome, causes people to give off an offensive smell of rotting fish in their urine, sweat, and breath. Though dietary restrictions and use of acid soaps and lotions help the odor, there are no real remedies that can completely mask the fish smell.
Watch the video to learn about how isovaleric academia hypermethioninemia also cause less than pleasant body odors.