Question

Case Study Choosing a Dietary Supplement Amy works the "pre-dawn" shift as a baker at a popular bistro. Amy is also a fulltime student, and the combination of taking a full course load at college and working early hours while her friends are sleeping has created a lot of stress for her. Amy's many commitments also make it important that she not become ill. Recently one of her coworkers suggested that she take Nutra mega supplements to help prevent colds, flu, and other illnesses. The product's label suggests that Nutramega helps prevent such problems, especially those associated with the changing of seasons. The label recommends taking two to three tablets daily for health maintenance and two to three tablets every 3 hours at the first sign of feeling ill. Amy looks at the Supplement Facts label on the bottle and finds that each tablet contains (as percent of the Daily Value): 33% for vitamin A (three-quarters is preformed vitamin A), 700% for vitamin C, 200% for niacin, and 100% for vitamin B-6. A month's supply costs about $50. compare with the Upper Tolerable Intake Levels for the four nutrients? How many tablets would be taken per day if Amy was feeling il? a. For vitamin A, use the % Daily Value 2. to calculate the micrograms RAE that would be in this larger dose. How does this compare to the Upper Level for Vitamin A? Use the % Daily Value to calculate the milligrams of vitamin C in this larger dose. How does this compare to the Upper Level for vitamin C? Use the % Daily Value to cal- culate the milligrams of niacin in this larger dose. How does this compare to the Upper Level for niacin? b C. Is a dietary supplement a safe way for Amy to prevent colds and the flu? d. Use the % Daily Value to calculate the micrograms of vitamin B-6 in this larger dose. How does this compare to the Upper Level for vitamin B-6? Does the recommended dosage of any of these nutrients pose any health risks? cost of a typical multivitamin supplement available at your local drug store? 4. Should Amy be concemed about meeting Answer the following questions, and check your response in Appendix A. e. her nutrient needs? Does the type of stress she is under increase her nutrient needs? After studying Chapter 8, what diet and supplement advice would you offer to Amy? 1. Are there any health risks associated with taking the "maintenance" dose of two to three tablets per day? How does this dose 5. Does the cost of this supplement seem reasonable? How does it compare to the 3.

Answer 1

1, Too much supplements usually cause harm and increase the risk of bleeding and it supplemental medications safety depends on chemical makeup,how it is work in the body,how it is prepared and dosage included..some supplements can harm the liver..the maximum level of total chronic daily intake of a nutrient make risk of adverse effects to humans..It is a probability of an adverse effects occur at some specific levels of exposes..
2,a, Too much vitamin supplement can cause dizziness,nausea,headache,coma and even death..100% of daily value each day is a average and useful to help get enough vitamin..recommended daily amount of vitamin A is 700mcg for women per day..so amy has to take 3 tablets per day..
b, Tolerate upper intake level maximum daily intake cause adverse health effects..Daily value 1000mg/day updated nutrition and supplement facts labels are implemented..she is on 700% for vitamin C..so Amy has to take 1.5 tables daily.
c, 500mg/day is the recommended dose of supplements of niacin..200% bottle contain..So Amy recommended dose is 2.5 tablets per day..
d, vitamin B-6 daily value average 75% that is 1.5mg/day in women..bottle contain 100%..So Amy has to 1.25 tablets recommended for daily doses..
e, Recommended dietary Allowance (RDA) average level intake sufficient to meet the nutrient requirement..Upper level intake cause adverse health effects..