Question

in the last thirty years, childhood obesity rates in the united states have tripled. nearly one - third of all american children are overweight or obese. americans consume 31 percent more calories, 56 percent more fats and oils, and 14 percent more sugars and sweeteners than they did forty years ago. forty years ago, americans were less likely to eat fast food. portion sizes for foods have increased two to five times the size they were forty years ago. today, american children tend toward eating three snacks a day, compared to only one snack a day forty years ago. why have obesity rates for american children increased in the last thirty years? check all that apply. children are snacking more today. fast food is less popular today. snack portion sizes are smaller today. unhealthy snacks add about 200 calories more each day. americans are eating more high - calorie, high - fat, and high - sugared snacks today.

Explanation:

The text states that American children snack more today, portion - sizes of snacks haven't decreased, unhealthy snacks contribute more calories, and Americans eat more high - calorie, high - fat, and high - sugared snacks. Also, fast food is more popular now compared to forty years ago.

Answer:

Children are snacking more today.
Unhealthy snacks add about 200 calories more each day.
Americans are eating more high - calorie, high - fat, and high - sugared snacks today.