What is a common characteristic of unrefined grains?

Unrefined grains are known for retaining a balance of essential nutrients, which is a defining characteristic. These grains maintain all parts of the grain kernel, including the bran, germ, and endosperm. This preservation allows them to provide fiber, vitamins (such as B vitamins), minerals (like iron and magnesium), and healthy fats, contributing to their nutritional richness. In contrast, refined grains undergo processing that removes the bran and germ, leading to a significant loss of fiber and essential nutrients, which is why they are considered less nutritious compared to their unrefined counterparts. Additionally, unrefined grains tend to have a shorter shelf life due to their higher oil content in the germ, making the preservation of nutrients a particularly noteworthy aspect.