Author Question: Briefly explain dietary sources, deficiency, toxicity, and recommended intake of ... (Read 25 times)

mmm

  • Hero Member
  • *****
  • Posts: 558
Briefly explain dietary sources, deficiency, toxicity, and recommended intake of selenium.

Question 2

What is the Recommended Dietary Allowance (RDA) of magnesium?



juicepod

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

Good sources of selenium include Brazil nuts, meat (especially organ meat), and fish. Severe selenium deficiency results in Keshan disease, a potentially fatal disease that causes serious heart problems and mostly affects children. Keshan disease was first documented in the Keshan region of China, which has very low levels of selenium in its soil. Consuming high amounts of selenium can result in nausea, vomiting, diarrhea, and brittleness of the teeth and fingernails. Selenium's Recommended Dietary Allowance is 55 g/day, and its Tolerable Upper Intake Level is 400 g/day.

Answer to Question 2

RDAs for magnesium are 420 and 320 mg/day for men and women, respectively. You might consume this amount of magnesium by eating three ounces of halibut, a cup of spinach, and a serving of rice. The Tolerable Upper Intake Level (UL) for magnesium is 350 mg/day for adults. This UL is unusual because it is actually similar to or less than the established RDA values. This is because the UL does not apply to magnesium obtained from foods-only that obtained from supplemental and medicinal forms.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Medication errors are three times higher among children and infants than with adults.

For a complete list of videos, visit our video library