Over the course of a year, a man consumes approximately 10 percent of his daily calories from beef and approximately 9 percent of his daily calories from white bread and other refined grains, compared to approximately 4 percent of his daily calories from whole grains and approximately 5 percent of his daily calories from vegetables, which he sautees in butter. Explain how this diet puts the man at risk of developing two different diseases. Explain how modifying the diet can help reduce these risks.