Is it me or people in the east don't have food allergy like the westerners? In the western world, people have food allergy of nuts, pineapple, bell pepper, gluten, pork, shellfish, egg, and so on.

there are plenty of asians with food allergies.
i know of a lactose intolerant and another allergic to shellfish

I know a few Asians with food allergies. One is deathly allergic to peabeans lol, peanuts are actually beans for anyone who didn't know.

According to science, SCIENCE!, the reason for it is because western countries are a lot cleaner and are not subject to as much bacteria as developing countries. Some people believe our bodies were originally suppose to have certain worms living in us as in some cases they can actually really benefit people. It wasn't until we starting wearing cloths and having shoes to protect ourselves from the elements that it's become harder for bacteria and parasites to get into our bodies. The documentary "living with parasites" or something like that has a really good theory as to why this is, go check it out.

On another note, I read on reddit that aids/hiv is becoming less deadly because of the way the virus has to evolve to adapt to our medical practises and how it can transmit itself to other host. Still deadly as fuck and will kill you in 12 years but it's 12 years now from the previous 10 years. Estimate 50 more years it may become curable/harmless