Bacterial growth mixed with perspiration is the most common source of body odor. However, if you bathe regularly, several other smelly factors–including what you most recently ate (or didn’t eat), the medications you pop, and what products you use to mask the noxious smells emanating from under your arm pits can actually answer the question, “What’s that smell?” when you get a whiff of something most foul.
If you’re in the habit of any of the following nine sneaky body odor sources—then the answer is almost certainly, “Yes, it’s you who smells!”…
You might consider it counterproductive that the products you spend money on to mask the reek of stinky body odor can actually exacerbate the smell. However, many store-bought body sprays, antiperspirants, and deodorants foster the development of foul-smelling bacteria.
A study conducted by microbial ecologists at the University of Ghent, in Belgium monitored the armpit bacteria of a group of male and female participants—half of the group swore off deodorant and antiperspirant for an entire month while the other non-deodorant-using half agreed to apply it for a month. Researchers found that the aluminum compounds present in deodorants and antiperspirants killed off killing off good (or non-smelly) bacteria and encouraged the growth of bad (or foul-smelling) armpit bacteria.