Home | | Nutrition and Diet Therapy | Nutritional and Calorie Requirements - Diet During Young and Middle Adulthood

Chapter: Nutrition and Diet Therapy: Diet During Young and Middle Adulthood

Nutritional and Calorie Requirements - Diet During Young and Middle Adulthood

Nutrition and Diet Therapy: Diet During Young and Middle Adulthood

NUTRITIONAL REQUIREMENTS

 

Growth is usually complete by the age of 25. Consequently, except during pregnancy and lactation, the essential nutrients are needed only to maintain and repair body tissue and to produce energy. During these years, the nutrientrequirements of healthy adults change very little.

 

The iron requirement for women throughout the childbearing years remains higher than that for men. Extra iron is needed to replace blood loss during menstruation and to help build both the infant’s and the extra maternal blood needed during pregnancy. After menopause, this requirement for women matches that of men.

 

Protein needs for healthy adults are thought to be 0.8 gram per kilogram of body weight. To determine the specific amount, one must divide the weight in pounds by 2.2 to obtain the weight in kilograms and then multiply the weight in kilograms by 0.8.

 

The current requirement for calcium for adults from 19 to 50 is 1,000 mg, and for vitamin D, 5μg. Both calcium and vitamin D are essential for strong bones, and both are found in milk. Bone loss begins slowly, at about the age of 35 to 40, and can lead to osteoporosis later. Therefore, it is wise for young people, especially women, who are more prone to osteoporosis than men, to consume foods that provide more than the requirements for these two nutrients. Three glasses of milk a day nearly fulfill the requirement for each of these nutrients. Increasing this amount could prevent osteoporosis. Fat-free milk or foods made from fat-free milk should be consumed to limit the amount of fat in the diet.


CALORIE REQUIREMENTS

 

Calorie requirements begin to diminish after the age of 25, as basal metabo-lism rates decrease (Table 14-2). After 25 years, a person will gain weight if the total calories are not reduced according to actual need, which will be deter-mined by activity, BMI (REE), and amount of lean muscle mass. Those who are more active will require more calories than those who are less active.





Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail
Nutrition and Diet Therapy: Diet During Young and Middle Adulthood : Nutritional and Calorie Requirements - Diet During Young and Middle Adulthood |


Privacy Policy, Terms and Conditions, DMCA Policy and Compliant

Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.