Exam 3: Making More Nutritious Choices

Which of the following statements is true?

Kristan uses % DVs to help plan nutritious menus with various packaged foods.She should try to obtain at least 100% of the Daily Value for which of the following nutrients?

Kevin was a participant in a clinical study to determine how much niacin cures pellagra,the niacin deficiency disease.During the study,he consumed only a formula diet that was deficient in niacin.After developing pellagra,he was given 2 mg of niacin a day for 2 weeks,but he still suffered from the disease,so the scientists added 2 mg of the vitamin to Kevin's formula.By the beginning of the 5th week of the study,the researchers noticed that Kevin's signs and symptoms were greatly improved.At the end of the 5th week,he was feeling fine.The researchers concluded that

The RDA for a vitamin is 75 mg/day.A megadose of this vitamin would be at least ____ mg/day.

Josh was a participant in a clinical study to determine how much thiamin cures beriberi,the vitamin's deficiency disease.During the study,Josh consumed only a formula diet that was nutritionally complete,except it did not contain thiamin.Within a few weeks,Josh developed beriberi.At that point,researchers gave 0.20 mg thiamin to Josh each day for a week,but his signs and symptoms of beriberi remained.In the weeks that followed,the scientists continued to increase Josh's intake of the vitamin by 0.2 mg/week.After a week of taking 0.6 mg of thiamin/day,Josh reported feeling much better.Based on this information,the researchers concluded that Josh's

Today,Sean only ate three sandwiches made with whole-grain buns,3 slices of cheese,and 10 ounces of roast beef.He also drank 3 cups of orange juice.According to MyPlate,he ate nothing from the food group that includes

According to Dietary Guidelines for Americans 2010,healthy people who are less than 51 years of age and are not African American should limit their sodium intake to _____ mg/day.

Recently,Miriah participated in a study that was designed to determine how much iron is necessary to prevent iron deficiency.Within a few weeks of consuming an iron-free diet,Miriah's red blood cells began to show signs that they lacked iron,and she began to complain about feeling tired.At that point,the researcher added some iron to Miriah's food,so her daily intake of the mineral would be 1 mg.After 1 week,the researchers checked the iron content of Miriah's blood,and although it was higher than the earlier value,she still complained about feeling tired.In the weeks that followed,the scientists continued to increase Miriah's iron intake by 1 mg/week and check her for signs and symptoms of iron deficiency.After a week of taking 6 mg of iron/day,she reported feeling like "her old self" and having plenty of energy.Based on this information,the researchers concluded that Miriah's

Today,the only food Meghan ate was 16 ounces of lemon-flavored yogurt,8 ounces of cooked turkey,and 2 cups of ready-to-eat cereal.According to MyPlate,she ate nothing from the food group that includes

According to the Dietary Guidelines for Americans,2010,_____ are unhealthy and should be consumed in limited amounts.

According to MyPlate,Chloe should consume 2½ cups of vegetables daily.She wants to substitute enough vegetable juice to equal 1 cup of raw vegetables.Based on this information,Chloe should drink ____ of the juice.