Chapter 1, Problem 8SC

Some nutritionists claim that the secret to long life is to be slightly underweight as an adult. If a persons weight is related partly to diet, partly to activity level, and partly to genetics, what underlying factors could be at work to generate statistics that support this claim?

In a popular magazine article the author reports health benefits attributed to a particular dietary supplement. What kinds of evidence should the article cite to help you decide whether the information is likely to be accurate?

Most ____ are necessary for enzyme function. micronutrients macronutrients biomolecules essential nutrients