Examples of oils high in polyunsaturated fats are corn, cottonseed, safflower, sunflower, sesame, and soybean. No vegetable oil contains cholesterol. Dietary cholesterol should be limited to 300 mg or less per day. Daily recommended fiber intake is 20-35 grams. Calories come from proteins, carbohydrates, and fats.
Most foods contain calories from more than one source.
Calorie needs are dependent on activity level, as well as on body composition. Therefore, caloric requirements for a person who is bedridden are less than those for one who is mobile and active. Exercise helps active older people maintain lean body mass, although lean body mass decreases somewhat even in those who exercise extensively. The higher the LBM, the more a person can eat without gaining weight and the more likely he or she will obtain an adequate supply of all nutrients. Although older adults need fewer total calories, they have an increased need for certain vitamins and minerals.