Using chemical fertilizer to grow vegetables is the same as using chemical fertilizer to grow food crops, and it is not toxic. No matter what kind of food and vegetables are planted now, there is no need to use chemical fertilizer. If it's toxic, it's all toxic. Of course, if it's not poisonous, it's all poisonous. Fertilizer itself can't be toxic, otherwise it would have been banned.
Compared with farmyard manure, chemical fertilizer is relatively simple in composition and may contain relatively few trace elements, so the yield of fruits and vegetables will be high, but the taste will be poor. This is the difference. But for people who are not particularly sensitive to taste, they can't eat it at all.