What is the oldest food we still eat today?

Could you please elaborate on the intriguing question, "What is the oldest food we still eat today?" It's fascinating to think about the ancient origins of the foods that have stood the test of time, continuing to be enjoyed by people worldwide. Are we referring to staples that have been cultivated for centuries, like grains or vegetables? Or perhaps certain meats that have been hunted and prepared in similar ways for millennia? Understanding the history and cultural significance of these enduring edibles could provide valuable insights into human history and evolution. So, what specific foods do you believe fit this intriguing category, and why do you think they have remained so popular through the ages?