I have given every green herb for food. -Genesis 1:30
And God blessed Noah and his sons, and said to them, Be fruitful, and multiply, and replenish the earth. And the fear of you and the dread of you shall be upon every beast of the earth, and upon every bird of the air, upon all that moves upon the earth, and upon all the fishes of the sea; to your hand are they delivered. Every moving thing that lives shall be food for you; even as the green herb have I given you all things. -Genesis 9:1-3
And I have come down to save them from the hand of the Egyptians, and to bring them out of that land to a good and large land, to a land flowing with milk and honey. -Exodus 3:8
And when the people of Israel saw it, they said one to another, It is manna; for they knew not what it was. And Moses said to them, This is the bread which the Lord has given you to eat. -Exodus 16:3
One should not eat meat twice in one day. -Talmud, Yoma 75
One should not eat meat unless one has a special appetite for it. -Talmud, Chullin 84a
R. Huna said: No scholar should dwell in a town where vegetables are unobtainable. -Talmud, Eiruvin 55b
According to Torah, the original diet for humans was vegetarian. Permission to eat meat was not given until God spoke with Noah after the flood. Today, there are many who consider vegetarianism to be the highest form of keeping kosher. Furthermore, modern medical science has ample statistical information regarding the correlations between animal fat and various degenerative diseases. In general, the omega-3 fatty acids that are found in many fish are much healthier for you than the omega-6 fatty acids found in land animals. Thus, endeavor to eat more fresh fruits, vegetables, fiber, and fish on a daily basis, and try to follow the Talmud's advice of not eating meat unless you have a special craving for it and to not eat meat more than once a day.