Robert has been told to limit his intake of refined grains. He should avoid the intake of Whitebread.
Step-by-step explanation:
In distinction to whole grains, refined grains are polished, a method that strips out each the bran and germ to allow them a finer texture and longer period of time. The refinement method conjointly removes several nutrients, as well as fiber. Refined grains embody white flour, white rice, white bread and degermed cornflower.