The farmers ate bread consisting of 1 part wheat flour, 1 part rye, and 1 part barley. This dense, whole-grain bread has sweet undertones from the rye, made more complex by the wheat and barley.
For example, a major supermarket brand's white bread may have 120 calories, whereas their 100% whole wheat option may have around 100 calories. Specific calorie differences will vary based on brands.