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.
30 And to every beast of the earth, and to every fowl of the air, and to every thing that creepeth upon the earth, wherein there is life, I have given every green herb for meat: and it was so.
31 And God saw every thing that he had made, and, behold, it was very good. And the evening and the morning were the sixth day.
When God made this world, He made it with intelligence and wisdom. He first prepared the environment and then created the life to enjoy the environment. Finally, He made Man, male and female, to take charge over all the earth.
In the original creation, Man was created for a diet of fruits and herb (vegetables) (v29). In short, Man is intended to be a real vegetarian in the absolute sense. And in the wisdom of God, all the herb and fruit He created is sufficient to ensure the health of Man.