Acorns have been one of the staple food in the distant past, especially in ancient times and in times of shortage.
Despite their characteristic taste, acorns were an attractive food source and were exploited by humans. They are useful in the diet of some animals that we eat - pigs and poultry, as well as in human nutrition.
It is necessary to emphasize that acorns do not require any chemical agents for growth, production, processing, and storage. Because of that, they have, indeed, great potential for sustainable development in the diet. Acorns are primarily forest fruit and it should be pointed out that most forests are certified.
Sustainable development means meeting the needs (in the diet) now, do not threatening the satisfaction of these needs for future generations.