Many foods that farmers grow can be eaten raw, others shouldnt be.
The biggest variable here is the person eating it. If someone does not commonly eat raw vegtables they should not just jump right in.
The average persons body does not have the right enzymes to break down raw foods. Raw vegtables are full of life saving nutrients, and enzyme-rich, but they are also full of cellulose, a fiber that is not digested well by humans. Or should I say humans that do not aclimate thier bodys to it.
some of the foods you should not eat raw, are
Eggplant= contains solanine effects vomiting, stomach cramps,nausia,headache,dizziness, and diarrhea
potatos= solanine as well, also high starch makes them hard to digest in most people raw. Never eat green potatoes, these were too shallow in the ground and have higher levels of solanine, as well as potatoes with eyes or sprouting.
lima beans, in large amounts= have toxic amino acid in it raw.
Many people suffer from issues that are a direct result of thier diet of vegtables. all of the nightshades,(potatoes, eggplants,peppers,tomatoes, more) can cause headaches, fatigue, acid reflux, even make artheritis worse. But your family dr will never tell you, he is cashing in on what you dont know.