Genesis 1:29 states "And God said: Behold, I have given you every herb yielding seed which is upon the face of all the earth, and every tree that has seed-yielding fruit—to you it shall be for food."
Daniel 1:8-16. At Daniel's request, the four boys were subjected to a test; they were fed vegetables and water for ten days. At the end of the ten days, the four boys were in better condition than the other boys who ate a non-vegan diet. Consequently, they remained on the vegan diet after the test concluded.
Some writers assert that the Jewish prophet Isaiah was a vegetarian, on the basis of passages in the Book of Isaiah that extol nonviolence and reverence for life, such as Isaiah 1:11, 11:6-9, 65:25, and 66:3. Some of these writers refer to "the vegetarian Isaiah"
So who were these meat-lovers? The Torah described them, in Hebrew, as ha’asafsoof. The Jewish Publication Society translates that as “the riffraff.”