As you get older, you may experience a change in attitude toward food. A decrease in appetite can result from taking certain prescription medications, or because you're less active than you once were. However, maintaining a nutritious diet can give you energy and a more robust immune system, and a 2002 study published in the European Journal of Clinical Nutrition found that healthy eating may be the key to staying mentally sharp.
According to researchers at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts, older adults tend to need fewer calories as they age because they are not as physically active as they once were and their metabolic rates slow down. Dieticians at the Medical College of Wisconsin's Clinical Research Center recommend that older adults take in approximately 1,600 calories per day.
While it's not always easy to consume the nutrients your body needs, you do have options. Experts recommend choosing lower-calorie foods that are high in nutritional value. Fresh foods such as fruits and vegetables, as well as whole grains, nuts, poultry, fish, eggs, and dairy products that contain calcium are good examples.
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