Dating back in the days of pro creation, when Adam & Eve are the only man & woman on earth.
Genesis 1:28 And God blessed them, and God said unto them, Be fruitful, and multiply, and replenish the earth, and subdue it: and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth.
God commanded them to eat herb & fruit yielding seed.
Genesis 1:29 And God said, Behold, I have given you every herb bearing seed, which is upon the face of all the earth, and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat.The only scenario where they are commanded to eat meat in addition to green herb was when Adam & Eve transgressed or disobeyed God.
Genesis 3:17 And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;For the Sterile (both husband & wife), let's go back to the good old days. Eat herb & fruit yielding seed only.
Genesis 3:19 In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.
Genesis 9:3 Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.
Herb bearing seed, fruit yielding seed, woman bearing child - Does it make sense?...
Good luck on your first baby!