Insects are thought to have been eaten along with fruits and grasses during the hunter-gatherer period that occupied most of human history.
Until humans were able to use tools to catch large animals, they probably ate many insects that could be easily gathered in large numbers.
But in fact, they say there is little evidence to prove that humans have been eating insects since early times!
How will we find that evidence?
I've heard there is no solid evidence of that, but if there is, fossilized human feces and murals in caves and other places...
Dungstone (fossilized human feces) Several cases have been cited by analyzing the unexcreted feces in the intestines of mummified human remains.
Several have been found in caves in the United States and Mexico.
Insect wings and feet, believed to date to around 9000 B.C., were found in fecal stones excavated from Danger Cave in the Great Basin region of California, U.S.A.
Dungstone excavated from a cave on the Tamaulipas Plateau in Mexico was found to contain the shells of several species of adult flies and chrysalis.
In Japan, wing sheaths (forewings) of beetles have been found in the fecal remains of Stone Age humans.
[Recently!!] In April 2021, a 100 million year old insect dungstone was discovered by paleontologists in China and England.
Pollen can be seen on and around the beetles of the Bearded Beetle family. This shows that pollination has been taking place for 100 million years.
↑Left: dung stone with pollen, right: beetle of the family Bearded Bombyxidae.
Mural The oldest, dating from around 20,000 years ago, and found in South Africa, are cave wall paintings from the Drakensberg Mountains, depicting the taking of a hive of wild honeybees.
It is believed to have been written by the San, the world's oldest people.
The Alanya paintings of Spain are also famous. It depicts a human climbing a tree to collect honey from a beehive.
In addition to obtaining honey, they probably ate the larvae and chrysalis in the hive.