Dietary standards influence our nutrient status in many ways (ways that you migh
ID: 143012 • Letter: D
Question
Dietary standards influence our nutrient status in many ways (ways that you might not yet recognize). The Dietary Reference Intakes include new approaches to using nutrients to achieve optimum health through new terminology. Understanding these terms provides useful information to apply to our decisions about everyday nutrient and food choices.
1. What is the DRI? What are the 4 part of the DRI.
2. DRI are are based on age, sex. What is your requirement for vitamin C, Vitamin E, Iron
3. What is upper limits? Why is this important? What is your upper limit for Vitamin C? Sodium?
Explanation / Answer
Answer 1) Dietary Reference Intake: A set of nutrient intakes value for a healthy person.
4 parts of DRI are:
1) Estimated average requirement: Each person has a different set of nutrients intake at different times in their lives. The EAR tries to average the amount of the required nutrients to support atleast half of the population.
2)Recommended Dietary Allowances: The RDA tries to make sure that more than half of the population getting the right amount of nutrients by setting the RDA near the top portion of the range of the the estimated requirement. This way almost everyone would get enough nutrients if folliwed.
3) Adequate intakes: Just as RDA, AI serve as nutrient intake goals, but AI takes place when RDA is available and is most judgemental because of not enough evidence.
4)Tolerable Upper Intake uploads: UI is used for individual to set maximum daily nutrient. Exceeding amount can cause health issues.
Answer 3) The vitamin C in dietary supplements is usually in the form of ascorbic acid, but some supplements have other forms, such as sodium ascorbate, calcium ascorbate, other mineral ascorbates, and ascorbic acid with bioflavonoids.
The upper limits for vitamin C are listed below:
Answer 2)
There are DRIs for vitamins, minerals, fat, protein, fiber, carbohydrates and even water intake. (They're available here on the Health and Medicine Division's website.) The DRIs are really helpful for dietitians who plan diets because these values help them design well-balanced meal plans so that consumers and clients will be most likely to get all the nutrients they need every day.
The DRIs are based on age and sex. Not every nutrient is the same, though. For example, the DRIs for iron need vary considerably by age and sex while the DRI for selenium is about the same for all teens and adults. Also, DRIs have been calculated for women who are pregnant or breastfeeding because they usually require a bit more of most nutrients.
Life Stage Upper Limit Birth to 12 months Not established Children 1-3 years 400 mg Children 4-8 years 650 mg Children 9-13 years 1,200 mg Teens 14-18 years 1,800 mg Adults 2,000 mgRelated Questions
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