Answer to Question 1
Growth charts from the Center for Disease Control and Prevention (CDC) have been used to track growth of infants since 1977. In the United States, it is recommended that pediatricians, dietitians, nurses, and parents track the growth of children ages 0-2 with the World Health Organization (WHO) growth standards and use the CDC growth charts for children ages 2 and older. The growth charts measure stature-for-age, weight-for-age, and body mass index and consist of a series of percentile curves that illustrate the distribution of these measurements in children.
Answer to Question 2
Olestra is approved for use only in potato chips, tortilla chips, and crackers. Olestra inhibits absorption of some vitamins and nutrients. In particular, the absorption of fat-soluble vitamins A, D, E, and K is inhibited. These vitamins have therefore been added to products containing Olestra. Olestra contains no calories, but can cause diarrhea and cramps for some consumers. Some believe that people who use the Olestra food sources will not replace their high-fat snacks with the Olestra snacks, but will simply add the Olestra snacks and will continue to also eat the fatty foods.