a) Discuss the changes in thirst as people age. b) What is the mechanism behind
ID: 243986 • Letter: A
Question
a) Discuss the changes in thirst as people age.
b) What is the mechanism behind this change and what have researchers found when studying older versus younger men?
c) Using the Tufts University modified food guide for adults 70+ (Illustration 18.4 on p. 467) and the one by University of Florida Extension Services (Illustration 18.5), explain the premise for the differences in these guides as compared to the USDA’s MyPlate resources.
* Please, do not use handwriting, typing to read it easier and faster.
GRAINS DAIRY VEGETABLES Vary your veggies FRUITS Focus on fruits PROTEIN FOODS Go lean with protein Choose low-fat or lean Make half your grains Get your calcium-rich whole foods Eat more dark-green veggies, Eat a variety of fruits, like like broccoli, salad greens and cooked greens bananas, berries, grapes and oranges Eat at least 3 oz. of whole- grain cereals, breads, rice, crackers, or pasta every day. Choose low-fat or fat-free milk, yogurt, and other milk products d poultry. Bake, broil, or grill Eat more orange vegetables, Choose fresh, frozen, such as carrots and sweet canned, or dried fruit. Eat fruit rather than drinking choices 1 oz. is about 1 slice of bread, 1 cup of cold breakfast Vary your protein sources. cereal, or /2 cup of cooked cereal, rice, or pasta If you don't or can't consume milk, choose lactose-free products or other calcium sources, such as fortified foods and beverages. Include eggs, dried beans tofu, fish, nuts, and seeds potatoes juice for most of your fruit Eat more dried beans and peas, like pinto, black, or kidney beans, and lentils. Eat cereals fortified with vitamin B12- For an 1,800-calorie diet, you need the amounts below from each food group. To find the amounts that are right for you, go to ChooseMyPlate.gov. Eat 2/% cups every day Eat 1 cups every dayEat 6 oz. every day Eat 5 oz. every dayEat 3 cups every day Eat Right Be Active Choose foods rich in fiber to help keep you regular. Limit sweets to decrease empty calories. olive, corn or soybean oils. Go for a walk. . Play with your grandchildren and/or a pet. e Work in your yard or garden. . Take an exercise or dance class at a community center or gym . Share a fun activity with a friend or family member. . Drink plenty of fluids to stay hydrated . Get your oils from fish, nuts, and liquid oils such as canola, . Choose and prepare foods with less salt or sodium Remember: all activity adds up! You don't have to do it all at once. Talk to your doctor or pharmacist about supplements you are taking Enjoy Life: spand time with caring people doing things you enjoy UF FLORIDA UNIVERSITY of MyPlate for Older Adults was adapted from USDA'S MyPlate by nutrition faculty in the Department of Family, Youth and Community Sciences, IFAS, University of Florida Gainesville, Florida 32611 2011 Elder Nutrition and Food Safety IFAS ExtensionExplanation / Answer
Changes in thirst as people age:
Feeling of thirst gets decreased when people gets older as a result of reduced thirst.
Mechanism behind this change:
Receptors responsible for thirst such as Osmo, Baro and Opioid receptors gets defective or ineffective when people grows older. This undergo changes in decrease thirst response.
what have researchers found when studying older versus younger men?
Research evidenced that older people have high baseline osmolality hence have higher osmotic operating point for sensation of thirst and satiety. It leads to diminished sensation of thirst compared with younger ones.
Tufts university nutrition experts modified with new recommendations as although metabolism and physical activity declines by age along with calorie requirements still the requirements of nutrition remains the same or increased.
Hence My plate recommends more vitamins and minerals per serving and also emphasis on regular physical activity and fluid intake in addition with fresh fruits and vegetables, low sodium and low sugar canned items just have blood pressure in control.
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