I have never heard of anyone else describing such allergies to vegetables and fruits, but ok. I had allergies growing up to various things but over time I learned to consciously de-condition them and I don't have them now. That's what I would do in such a situation. There are therapists who do this or it can be done internally.
However, we, on this planet are in a symbiotic relationship with all life. All the life exists to be consumed by other life. There isn't one piece left out.
It is common for people to mistake life for death - amazingly. If life consumes life against it's will, then that life dies and some of it changes form. The vibration of the will decreases when it is overpowered - that is the cause of death in general on Earth.