What happens if you eat spinach that smells like ammonia?

Spinach that smells like ammonia is likely spoiled and should not be consumed. Spoiled spinach can cause foodborne illnesses, such as E. coli, which can lead to symptoms such as abdominal cramps, diarrhea, vomiting, and fever. In severe cases, foodborne illnesses can even be fatal. It is important to always inspect your food carefully before eating it and to discard any food that smells or looks spoiled.