Ch12

Question 1

Discuss possible mechanisms to explain relationship between BMI rebound and obesity.

Answer 1

• Body fat increased around age 6 to prepare for growth spurt (BMI rebound).
• Early BMI rebound is associated with high body fat, overweight and obesity.
• BMI rebound is when children are expressing learned behaviours of food intake and activity.
• BMI rebound may be related to infants exposed to gestational diabetes and having high birthweight.

Question 2

The impact of advertising on nutrition choices.

Answer 2

• Advertisements aim to attract children through fun, excitement, and energy.
• This impacts food choices, nutrition choices, brand preferences, and greater impact on obese children.
• Screen time and TV viewing contributes to the prevalence of obesity. Treatement for Obesity should include reducing screen time and sedentary behaviours.

Question 3

What causes secondary lactose deficiency? do dairy products have to be completely avoided?

Answer 3

• Secondary lactase deficiency can be caused by injury to the small bowel.
• Should be treated and elimination of lactose from the diet is not necessary.
• MIlk products should be resumed once the conditions has resolved. This is because elimination of dairy is a concern of low intake of calcium, vitamin D and other nutrients.