Because there is such strong evidence of the health benefits of consuming whole wheat, consumers are purchasing whole-wheat berries.
It is not absolutely crystal clear what nutrient, or part of the wheat berry is contributing the health benefits, or even if it is a combination of the nutrients.
This is why people are purchasing and preparing wheat berries. They don’t want to remove any of the portions of the berry. They know that some food processors remove both the bran and the germ; then add back various types of fiber trying to attract the consumers that are making decisions based upon grams of fiber.
Purchasing and using wheat berries is one way to insure that you are consuming the whole grain and thereby consuming all the nutrients that are naturally included in the grain.