Fit not Fat -- Childhood Obesity and the Environment Helen J. Binns, MD, MPH Ann & Robert H. Lurie Children’s Hospital of Chicago Feinberg School of Medicine, Northwestern University Sponsored by Region 5, Pediatric Environmental Health Specialty Unit
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Fit not Fat -- Childhood Obesity and the Environment Helen J. Binns, MD, MPH Ann & Robert H. Lurie Children’s Hospital of Chicago Feinberg School of Medicine,
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Fit not Fat --Childhood Obesity and the
Environment
Helen J. Binns, MD, MPH Ann & Robert H. Lurie Children’s Hospital of ChicagoFeinberg School of Medicine, Northwestern UniversitySponsored by Region 5, Pediatric Environmental Health
Specialty Unit
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Disclosure Information
• This material was supported by the Association of Occupational and Environmental Clinics (AOEC) and funded under the cooperative agreement award number 1U61TS000118-03 from the Agency for Toxic Substances and Disease Registry (ATSDR).
• Acknowledgement: The U.S. Environmental Protection Agency (EPA) supports the PEHSU by providing funds to ATSDR under Inter-Agency Agreement number DW-75-92301301-0. Neither EPA nor ATSDR endorse the purchase of any commercial products or services mentioned in PEHSU publications.
• Dr. Binns has no conflicts of interest to disclose.
Growing Up Healthy
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Parental Modeling
Modeling
Health Habits Dietary Choices Exercise Verbal prompts to child
Parenting Skills Parental leadership Parent-child communication Problem-solving skills
Parent Behaviors
Support for Eating ChoicesSupport for Activity & Inactivity
Home Environment
Child Health Behaviors
Child Weight Status
Adapted from Golan & Weizman JNE 2001
Parents Create a Healthy Home Environment!
Be ActiveLimit ScreensHave RoutinesHealthy FoodsSafe Products
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Physical Activity Fun
Recommended activity for children is 1 hour daily Study of children surveyed twice (1 year apart)
For those who increased their activity by 7 hours per week:
Healthy weight children achieved BMI maintenance OBESE children had BMI fall of -0.2 kg/m2 (gained about 1
less lb than expected)
Berkey CS, et al. Pediatrics 2003;111:836-843
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Physical Activity Fun screen time physical activity Screen time contingent upon physical activity
8 weeks intervention Reward for activity: 1 hr activity = 1 token =1 hr TV
Follow-up at 16 weeks Intervention group compared to controls
activity by 30 minutes/day sedentary behaviors by 2 hrs/day snacking while watching TV BMI -0.6 kg/m2 vs. +0.3 kg/m2 controls
Goldfield GS, et al. Pediatrics 2006;118;e157-e166
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COUNSELING TIPS: Family Activity
Incorporate activity into your family events Young children need play partners – that is the
parent! Support your child’s activities Plan to be active yourself (30 minutes of jogging = 1 soda)
satiety signals to produce reward value and appetite
Eating
from Rolls ET. Obes Rev 2007;8(suppl 1):67-72
Satiety/hunger signals:Adipose tissue signals
Gut hormonesGastric distension
Cognitive factors: Conscious rational control
Beliefs about the foodAdvertising
Family & Social Influences
Weight Status Food Content
Increase Intake of Fruits and Vegetables
Fruits and Vegetables
Low in calories High in fiber – fill you up! Sensory appeal
Taste, texture, color Rich in vitamins and minerals,
which are needed to fight oxidative stress
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Fight Oxidative Stress 20% of oxygen breaks down to Free Radicals &
Reactive Oxygen Species Stressors can increase that to 80%
UV light Poor nutrition Inflammation Air Pollution Tobacco Radiation
http://www.smokersrx.com/images/why2.jpg
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Fruits and Vegetables
1/2 cup = 1 serving Needs for children:
<15% of US children get 5 daily servings! Adult on a 2000 calorie /day diet
NEED 9 servings/day
Age Group
Servings of
Fruits/day
Servings of
Vegetables/day
Toddlers 2+ 2+
Older children/adolescents 2+ 3+
The million dollar question…
How do you get kids to eat more vegetables?
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First thing:
How are the parents interacting with vegetables? Are the parents buying vegetables? Are the parents serving vegetables? Are the parents eating vegetables?
Children pattern their behavior after their parents
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Parental Modeling and Pressure to Eat 191 families; Girls age 5 yrs Measures:
F&V servings/day Girls: 3/day Parents 2/day
Parental pressure to eat scale
Parents with high F&V intake had girls with higher levels of F&V intake (about 1 more/day)
Parents with lower F&V intake had higher levels of pressure to eat
High pressure decreased F&V intake about 1 less/day, after controlling for parental intake
Fisher J et al. J Am Dietetic Assoc 2002;102:58-64
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Changing Food Preferences
Intervention study Children 2-6 yrs
“Tasting” method: Taste vegetable for 14 consecutive days
Parent taste & provide positive verbal cues
No forcing
Significant increase in liking and consumption after using the method (compared to controls)
Repeated “tasting” can transform dislike into likeWardle J et al. Appetite 2003;40:155-62Birch LL. Annu Rev Nutr 1999;19:41–62
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Positive Messages: Increasing Healthy Eating vs. Reducing High Energy-Dense Foods
Family-based obesity intervention 13 groups sessions over
5 months 2 groups
Healthy Eating = more fruit, vegetables, and low-fat dairy
Reducing High Energy-Dense Foods = less high-fat, high-sugar foods
BMI reduction sustained only in Healthy Eating group BMI of parents in
Healthy Eating group improved more, too!
Epstein LH, et al. Obesity 2008;16:318-26
Parents set an example!
Buy, cook, serve, and eat more vegetables To start, double what you’re currently doing Put vegetables in everything you’re cooking Bring fruit and vegetable snacks with you
Eat a fruit at every meal and two vegetables at dinner
Learn to like new vegetables
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Increase Intake of Whole Grains and Fiber
What are Whole Grains?
Whole grain foods contain all the grain layers, including:
Bran (outer layer, contains seed fiber)
Endosperm or Kernel
(contains vitamins and minerals)
Germ
(concentrated source of nutrients)
What is Fiber?A group of compounds including lignin (plant cell walls) and complex carbohydrates that cannot be digested by human enzymes in the small intestine
Sources of Fiber Fiber/serving
Legumes (beans, peas) (cooked) 6-8 grams/ 1/2 cup
Fruits and Vegetables (cooked) 2-6 grams/ 1/2 cup
Whole Grains and Cereals 2-5 grams/ serving
Nuts and Seeds 2-4 grams/ ounce
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Fiber: Health benefits Increases satiety (the feeling of fullness) Helps prevent constipation (increases fecal bulk) Lower cholesterol absorption and LDL synthesis
5-10 g/day reduces LDL cholesterol by about 5% ↓ serum triglycerides ↓ cholesterol synthesis
May decrease insulin resistance Additional 5 g fiber/day→ 10% ↓ in belly fat deposition*
May help reduce weight gain Higher fiber inversely associated with BMI in major observational
studies Role of fiber in weight control is not yet clear
*Ventura E, et al. Arch Pediatr Adolesc Med 2009;163:320–7
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Dietary Fiber: HOW MUCH?
Ages 1-3 years 19 g/day
Ages 4 – 8 years 25 g/day
Ages 9 – 13 yearsMale
Female31 g/day26 g/day
Ages 14 -50 yearsMale
Female38 g/day29 g/day
US adults typically get 14-15 g fiber/day
Children:
How many grams of fiber do children need?
024
68
10
1214
16
gm
s fi
ber/
day
2-5 yr 6-11 yr Girls 12-18 yr
Boys 12-18 yr
Mean Fiber I ntake, US Children by Age
Saldanha et al, Pediatrics 1995;96:994-7
Note: 14 g fiber / 1000 calories
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Dietary Fiber: Contrasting Foods
High Fiber Low Fiber
Potato with skin (one) 2 g Potato w/out skin (one) 1 g
Dry beans (cooked)(1/2 cup)
6 g Potato chips (1 serving)
1 g
Broccoli (1 cup) 5 g Lettuce (1 cup) 1 g
Whole wheat bread (1 slice) 3 g White bread (1 slice) 1 g
Cereal: oat circles(1 cup)
3 g Cereal: corn flakes
(1 cup)0.5 g
Brown rice (cooked) (1/2 cup) 2 g White rice (1/2 cup) 0 g
Orange (one) 3 g Orange juice (1/2 cup) 0 g
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Read It Before You Eat It!
Read the food label Look for High Fiber and Whole Grain
5 g fiber/serving is HIGH for cereal and bread Find the LOW SUGAR food
4 g sugar = 1 teaspoon sugar Sugary circles: 12 g sugars; 3 g fiber Sugary flakes: 11 g sugars; 1 g fiber
Look for those with < 8 g sugar per serving Mix brands of cereals to increase fiber and lower
sugar content
Reduce/Avoid Sugar-Sweetened Beverages and Foods
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Sugar-Sweetened Beverages (SSB)
What are SSBs? Soda, fruit drinks, juice blends, lemonade, sweetened tea Other carbonated or uncarbonated drinks (ie, sports and
energy drinks) Most consumption happens at home (55-75%) Daily calories from juice and other SSB (among
Fructose has more negative health effects (compared to glucose) An increase in visceral fat (in organs) Less sensitivity to insulin Increased fat production in the liver Higher LDL cholesterol Higher triglycerides
Effects on energy intake ↑ hunger & ↓ satiety Displace appetite for nutrient-balanced foods