When did our ancestors start eating meat? An exciting archeological find supports the idea that we needed meat to survive as early as 1,5 million years ago. That means our ancestors had probably been eating meat regularly for a long time prior to that date.
The piece of bone above comes from a two years old child that may have died from lack of (vitamin B12) meat millions of years ago. Thus veganism without B12 supplementation may have been dangerous for a long time!