In the beginning, God created the sky, the earth, the sea, all the animals and people during six days. Then on the seventh day, God rested and blessed the seventh day and made it holy.
The question of mankind's original diet is a question about the past. It's a question about a time long ago, before any of us were alive. So to answer this type of historical question...
Those of us who have had a special animal companion sometimes wonder if we will ever spend time with our beloved pet again. To find a true answer to a question such as this, we must go to someone who is a qualified teacher.