What is the amount of food you eat at one time? a. bmi b. calorie intake c. immunization d. portion size

How is health different for most people in this country today from what it was for people born in 1900? a. people have a shorter life span. b. people today work harder to survive. c. people today live in poorer sanitary conditions. d. people today can focus less on day-to-day survival and more quality of life.

Which are fat-soluble vitamins? a. abcd b. abek c. abdk d. acdk e. adek

Which of these is likely to be the best source of valid health information?