Obesity in Children and Adolescents

The Growing Crisis

Childhood obesity in India has doubled in the last decade. What was once rare is now alarmingly common, with 15-20% of urban children affected.

Childhood Obesity Warning Signs

Physical Signs

• Growth charts: BMI >85th percentile (overweight), >95th percentile (obese) for age and sex
• Rapid weight gain: Crossing upward across percentile lines
• Acanthosis nigricans: Dark, velvety skin in neck/armpits (sign of insulin resistance)
• Stretch marks: Purple/pink striae on abdomen, thighs
• Breathlessness: During normal activities
• Early puberty: Obesity can trigger premature development

Behavioral Signs

• Avoiding physical activities/sports
• Spending >2 hours daily on screens
• Frequent snacking, especially packaged foods
• Large portion sizes
• Eating when bored or stressed

Medical Complications in Children

Previously "adult diseases" now affecting children:

• Type 2 diabetes: Seen in teenagers, even pre-teens
• Hypertension: 20-30% of obese children
• Fatty liver disease: 40-70% of obese children
• Sleep apnea: Snoring, daytime sleepiness, poor school performance
• Joint problems: Knee pain, flat feet
• PCOS: In adolescent girls
• Psychological issues: Low self-esteem, depression, bullying

Screen Time: The Modern Epidemic

How Screens Contribute to Obesity

1. Sedentary behavior: Replaces active play
2. Mindless eating: Snacking while watching
3. Sleep disruption: Blue light delays melatonin, reduces sleep quality
4. Food advertising: Exposure to junk food marketing increases consumption 20-30%
5. Reduced family meals: Everyone on devices instead of eating together

Indian Context

Average urban Indian child's screen time:

• Before pandemic: 3-4 hours/day
• Post-pandemic: 6-8 hours/day (including online classes)
• Recommended: <1 hour/day for ages 2-5; <2 hours/day for ages 6+

Junk Food and the Food Environment

What Changed in Indian Children's Diets?

• Tiffin boxes: Home-cooked → Packaged chips, biscuits, juice boxes
• After-school snacks: Fruits → Instant noodles, chips
• Birthday parties: Traditional sweets → Pizza, burgers, cakes, sodas
• Weekly treats: Became daily consumption

Junk Food Marketing to Kids

Children see 5,000-10,000 food advertisements yearly, 80% for unhealthy foods. This creates:

• Strong brand preferences (even toddlers recognize logos)
• "Pester power"—children nagging parents
• Association of junk food with fun, happiness
• Normalized overconsumption

Schools: Part of the Problem or Solution?

School Environment Issues

• Canteen food: Samosas, pizzas, soft drinks readily available
• Limited PE: Physical education often once weekly or skipped
• Academic pressure: No time for play, evening coaching classes
• No nutrition education: Children don't learn healthy eating
• Fundraisers with junk food: Chocolate/chips sales for school activities

What Schools Can Do

• Ban junk food in canteens
• Daily PE classes (minimum 30 minutes)
• Nutrition education in curriculum
• Active breaks between classes
• Parent education programs
• Healthy food policies for school events

What Parents Should Do

✓ DO: Effective Strategies

1. Model Healthy Behavior

• Children copy parents—eat healthy yourself
• Be active as a family
• Limit your own screen time
• Don't use food as reward or punishment

2. Create Healthy Home Environment

• Stock healthy foods: Fruits visible, junk food hidden or absent
• Regular meal times: Eat together as family
• Appropriate portions: Use smaller plates for children
• Offer vegetables first: When hungry, children are less picky

3. Limit Screens Firmly

• Set clear rules (e.g., no screens during meals, 1 hour after homework)
• Remove TVs/computers from bedrooms
• Use parental controls
• Offer alternatives (board games, outdoor play)

4. Encourage Activity

• Minimum 60 minutes daily moderate-to-vigorous activity
• Sports, dance, martial arts—find what they enjoy
• Active transport (walk/cycle to school if safe)
• Weekend family activities (hiking, swimming)

5. Handle Peer Pressure

• Teach children to make own choices
• Occasional treats at parties are OK
• Focus on health, not appearance
• Build self-esteem independent of weight

✗ DON'T: Harmful Approaches

1. Don't Put Child on Restrictive Diet

• Can trigger eating disorders
• Slows growth and development
• Creates unhealthy relationship with food
• Focus on healthy eating for whole family, not "diet"

2. Don't Comment on Child's Weight/Appearance

• "You're getting fat" damages self-esteem
• Weight-based teasing (even from family) increases obesity risk
• Focus on health and strength, not appearance

3. Don't Use Food as Reward/Punishment

• "Finish homework and you can have ice cream" creates emotional eating
• "No dessert because you misbehaved" makes treats more desirable
• Use non-food rewards: stickers, extra playtime, special outing

4. Don't Force "Clean Plate"

• Children have natural hunger/fullness cues
• Forcing overrides this, leading to overeating
• Serve smaller portions; they can ask for more

5. Don't Ignore the Problem

• "Baby fat will go away" is dangerous thinking
• 80% of obese adolescents become obese adults
• Act early with gentle, sustainable changes

Medical Evaluation for Obese Children

When to See a Doctor

• BMI >95th percentile for age
• BMI >85th percentile WITH complications (high BP, dark skin patches, family history of diabetes)
• Rapid weight gain crossing percentiles

Screening Tests

• Blood pressure
• Fasting glucose and/or HbA1c
• Lipid profile (total cholesterol, LDL, HDL, triglycerides)
• Liver enzymes (ALT, AST—screening for fatty liver)
• Thyroid function (if indicated)

Key Takeaways