kellen is on the cross-country team at college. his coach invited a registered dietitian nutritionist to speak to the team about nutrition for optimal performance. one of the topics she covered was phytochemicals. what is the best way to obtain the potential benefits of phytochemicals? multiple choice drink electrolyte replacement beverages. engage in physical activity every day. eat a diet rich in fruits, vegetables, and whole grain breads and cereals. take a dietary supplement with phytochemicals.