system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Do insects get food poisoning?

For example if a fly eats salmonella contaminated raw chicken does it affect them?
gpt
One reason insects react so differently to many toxins is because their digestive tract is alkaline in contrast to the acidic environment of the vertebrate intestines. A different pH may render some toxins less harmful and others more so. A common "food contaminant" for insects is *Bacillus thuringiensis*, a species of bacteria which lives in the soil (and on leaves) and basically produces a crystalline toxin that can only be dissolved in the alkaline digestive tract of insects. However, it's non-toxic to humans because the crystals pass our digestive system undissolved. This is why *B. thuringiensis* is sprayed on crops to prevent damage caused by larvae.
   TL;DR: Their digestive system makes insects vulnerable to different bacterial toxins. Yes, they can suffer from certain food poisonings.