"The usefulness of cow-peas and soy-beans as human food has been recognized only recently in this country"

This quote by David F. Houston talks to the current acknowledgment of cow-peas and soy-beans as viable sources of human nutrition in the United States. This indicates that prior to this recognition, cow-peas and soy-beans were not extensively consumed as food sources in the United States. This might be due to a lack of understanding about the dietary advantages of these foods, or an absence of access to them. It might likewise be because of cultural choices, as these foods might not have actually been generally consumed in the US. Whatever the reason, it is clear that the acknowledgment of cow-peas and soy-beans as viable sources of human nutrition is a reasonably current development in the United States. This quote serves as a pointer of the significance of recognizing the nutritional value of various foods, and of being open to attempting new foods.