What is a highly nutritious seeded pods of various legumes are among the oldest foods known to humanity?

The answer is lentils.

Lentils are a type of legume that has been cultivated for thousands of years. They are highly nutritious and are a good source of protein, fiber, iron, and other essential nutrients. Lentils are often used in soups, stews, and curries, and can also be eaten as a snack.