Exam 2: Nutrition Information: Fact or Fiction

Mitch recently tried a hair-restoring product that he purchased from an Internet website.The package's label displayed the following claim: "Rubbing a tablespoon of 'NutraTerraMino' on your scalp each day will cure the hair loss associated with the aging process." After a month of using "NutraTerraMino" daily,he stopped because the product made his hair fall out.Based on this information,Mitch should file a complaint with the

A nutrition researcher adds 30 mg of the mineral iron to the daily diet of 50 4-week-old laboratory mice.After ten weeks,the scientist takes blood samples from each mouse.According to his findings,the mice developed abnormal red blood cells.Based on this information and your knowledge of scientific research,what would you tell him?

A scientist conducts a study to determine the effects of the mineral cadmium on the weight of mice.She adds 5 mcg of the mineral to the daily diet of 100 4-week-old laboratory mice.Every week,the researcher weighs and records the weight of each mouse.At the end of the study,the scientist notes that 3 mice died,40 mice lost weight,40 mice gained weight,and the remaining 17 mice didn't gain or lose weight during the 12-week period.Based on this information,what would you tell the researcher about her findings?