How does the translation answer the doubt that plant medicines are also meat because they are bodies of living beings?

Detailed answer

Where the pervaded (vyapya) is present the pervader (vyapaka) is present too, but not the reverse, as with shinshapa and tree. Just as woman is a name common to sister and wife yet one is approached and the other not, food (anna) and meat, though alike bodies of living beings, are one to be eaten and the other not. Grains, pulses, roots, fruits, flowers and leaves are described as fit for the worship of the gods and pure, and a physician devoted to true dharma cannot call them meat without contradicting perception, his own words, scripture and the world.