Child Growth: Nutrition, Sleep and Exercise Guide

By BOOSTER+ Editorial Team · Updated October 15, 2026

Child Growth: What Parents Should Know About Sleep, Exercise and Nutrition

Healthy childhood growth depends on genetics, overall health and daily habits. Adequate energy and nutrients, regular movement and enough sleep all help children reach their normal growth potential. No single sport, bedtime or supplement can guarantee extra height.

1. What is the best time for children to sleep?

Growth hormone is released in pulses, including during deep sleep. However, there is no proven universal “before 10 PM” rule that makes children taller. The best bedtime is the one that allows sufficient, consistent, good-quality sleep before the child needs to wake up.

Age	Recommended sleep in 24 hours	Example if waking at 7 AM
3–5 years	10–13 hours, including naps	Plan evening sleep around naps and morning wake-up
6–12 years	9–12 hours	Often around 8–9 PM for roughly 10–11 hours
13–18 years	8–10 hours	Often around 9–11 PM, depending on sleep needs

These times are practical examples, not scientifically established height-maximizing hours. For younger children, allow time to fall asleep; for teenagers, consider school start times and their natural later sleep timing.

Five ways to improve sleep routines

1. Keep sleep and wake times consistent, including weekends.
2. Develop a calming evening routine.
3. Limit bright screens and stimulating activities before bed.
4. Provide a comfortable, dark and quiet bedroom.
5. Encourage outdoor daylight and regular activity during the day.

2. What exercises are best for strong bones?

Bone-strengthening exercise involves age-appropriate impact or loading. The World Health Organization recommends that 5–17-year-olds average at least 60 minutes of moderate-to-vigorous activity daily across the week, including muscle- and bone-strengthening activities at least three days a week.

Jump rope

Skipping offers repeated weight-bearing impact and helps coordination, cardiovascular fitness and leg strength. Beginners can try 30–60-second sets with rest, building gradually.

Basketball and ball games

Running, landing, jumping and changing direction are useful for bone loading and developing coordination. Basketball is excellent physical activity, but it has not been shown to increase final adult height beyond natural growth potential.

Running and active playground games

Running and games of tag provide aerobic activity and weight-bearing stimulation. Start with manageable play sessions rather than forcing long-distance training.

Jumping, hopscotch and climbing

These activities build balance, muscle strength and movement skills. Choose appropriate surfaces and progress safely.

Swimming

Swimming supports fitness, muscular endurance and coordination. Because buoyancy reduces impact loading, combine it with land-based activities for bone health.

Best overall approach: Choose activities children enjoy; combine running/jumping, muscle-strengthening play and aerobic activity rather than relying on a single sport. Adapt intensity to ability, supervision and any medical needs.

3. What nutrition best supports normal growth?

Children need enough calories, protein and a varied diet. Long-term insufficient energy or nutrient deficiencies can interfere with normal growth; excess supplementation does not automatically produce extra height.

Protein

Eggs, fish, chicken, lean meat, tofu, beans, milk and yoghurt provide amino acids for tissue growth and repair.

Calcium

Calcium is essential for building and maintaining bones. US NIH recommended dietary allowances are 1,000 mg/day for ages 4–8 and 1,300 mg/day for ages 9–18, from food and supplements combined. Sources include milk, yoghurt, cheese, calcium-set tofu and fortified drinks.

Vitamin D

Vitamin D helps the body absorb calcium. The US recommended dietary allowance for ages 1–18 is generally 600 IU (15 mcg) per day. Sources include fortified foods, fatty fish and some egg yolks; professional advice may help if intake or status is inadequate.

Vitamin K and K2 (MK-7)

Vitamin K helps activate proteins involved in normal bone metabolism, including osteocalcin. MK-7 is especially found in fermented foods such as Japanese natto; its intake varies with diet. There is no separate established dietary requirement for MK-7 itself.

Other nutrients

Iron and zinc, together with varied fruit, vegetables, whole grains, healthy fats and adequate hydration, are also important for healthy development.

4. An example school-day growth-supporting routine

Time	Habit
7:00 AM	Wake up and eat a nutritious breakfast
12:30 PM	Balanced lunch with protein, vegetables and grains
After school	Outdoor play, sports, running or jumping
6:30 PM	Balanced dinner and fluids
Evening	Reduce screens and follow a relaxing routine
Bedtime	Set a consistent time that meets age-specific sleep needs

Adapt this schedule to the child's school hours, age, naps, energy needs and personal circumstances.

5. How does BOOSTER+ HEIGHT+ fit in?

HEIGHT+ is designed as a complementary nutritional supplement—not a replacement for regular meals, exercise or sleep.

BonePep® egg-yolk-derived peptides

BonePep® is a branded ingredient developed by Pharma Foods International. Published research has investigated bone-related processes in cell and animal studies and certain bone-health outcomes in adults. This is a research background for the ingredient, not proof that HEIGHT+ increases children's final height.

K2VITAL® Vitamin K2 (MK-7)

K2VITAL® supplies the MK-7 form of vitamin K2, which participates in activating bone-related proteins. Together with calcium and vitamin D3, it reflects HEIGHT+'s focus on ingredients with nutritional roles in bone health.

Parents should check the product label for exact amounts, age suitability and directions, especially if their child has an egg allergy, takes medicine affecting vitamin K, or has an underlying medical condition.

For more detail see our Science, Ingredients and FAQs pages.

6. Frequently asked questions

Does sleeping before 10 PM make children taller?

No fixed clock-time cutoff has been established. Sufficient total sleep and regular habits matter more.

Is jump rope or basketball best for height?

Both can support strong bones and fitness. Neither guarantees a greater final adult height.

Does eating more calcium make a child taller?

Adequate calcium supports normal bone development; extra calcium beyond requirements is not a proven way to increase height.

When should I speak with a doctor?

If a child grows unusually slowly, has poor weight gain or repeatedly crosses down growth-chart percentiles, seek pediatric assessment rather than relying only on supplements.

Scientific references

1. Paruthi S et al. Recommended Amount of Sleep for Pediatric Populations. J Clin Sleep Med. 2016. Full text.
2. World Health Organization. WHO Guidelines on Physical Activity and Sedentary Behaviour. 2020. Guidelines.
3. NIH Office of Dietary Supplements. Calcium Fact Sheet.
4. NIH Office of Dietary Supplements. Vitamin D Fact Sheet.
5. NIH Office of Dietary Supplements. Vitamin K Fact Sheet.
6. Pharma Foods International. BonePep® Ingredient Information.

This article is for general educational purposes and is not a substitute for individualized medical or nutritional advice. No supplement can guarantee increased height.