If u do a search either on the web or here u will see that your topic is discused quite a bit, evan debated by some.
It can be trying on CZ because many notes have no keywords added so as to show up in a search. One of the oldest texts we have on UT , the shivambu shastra/gita/tantra, advises no animal flesh, no grains, no greens and no dairy, only ripe fruit.