Final answer:
The 2015 Dietary Guidelines for Americans recommend obtaining all essential nutrients from foods. Foods provide a complex range of nutrients and other beneficial substances that dietary supplements can't fully replicate.
Step-by-step explanation:
According to the recommendation of the 2015 Dietary Guidelines for Americans, we should get all of our essential nutrients from foods.
Essential nutrients are not synthesized by the body and are necessary for proper body function. Nutrients should always be derived from food first, as it contains not only vitamins and minerals but also other beneficial substances such as phytochemicals and fiber that cannot be duplicated with supplements. Vitamins and other dietary supplements are considered extras, not replacements for a healthy diet, and their role is to supplement the diet when necessary, not substitute the nutrients we can get from food. It is crucial to maintain a healthy, well-balanced diet designed to provide all of the necessary nutrients for optimal health and function.