Not just Asians but a certain number of different people
"Some lucky people’s sweat doesn’t cause body odor. It’s likely because they have a malfunctioning version of something called a transporter protein, which, in most people, is responsible for secreting the molecules that a certain type of bacteria then consumes, a process that results in body odor. As our Gal Science puts it in the video, “No bacteria buffet, no smell.”
About 2 percent of Europeans and a majority of people in some East Asian countries like Japan and China have the recessive gene that results in the faulty transporter protein"
It's thanks to genetic good fortune.
www.thecut.com
Two percent of people carry a rare form of a particular gene (ABCC11) that makes their armpits odor-free, however, 78% of them use deodorant.
www.medicalnewstoday.com
But a new study finds most of them still use deodorant
www.smithsonianmag.com