Infants

• The World Health Organization recommends breastfeeding (or if necessary, formula feeding) exclusively for the first six months of a child's life. Solid foods are not necessary prior to four months. Allowing babies to feed on demand generally ensures that they're receiving the calories they need.
  
  

Toddlers

• Calorie requirements vary depending on how active a child is. A range of 1,000 to 1,400 calories is all that's needed for children ages two to three.
  
  

Older Children

• For older children, calorie needs will depend on gender, age, and activity level. The U.S. Department of Agriculture guidelines are:
  
  Children ages 4-8:
  Girls: 1,200 to 1,800 calories
  Boys: 1,400 to 2,000 calories
  
  Children ages 9-13:
  Girls: 1,600 to 2,200
  Boys: 1,800 to 2,600
  
  Children ages 14-18:
  Girls: 1,800 to 2,400
  Boys: 2,200 to 3,200
  
  

Protein

• Merck Online advises that while calorie needs increase as children grow, the amount of protein needed decreases. Peanut butter and lean meats such as chicken are healthy sources of protein. Limit fatty meats such as sausage and red meat.
  
  

Tip

• Offer healthy calorie options from a young age so children get acclimated to them and have plenty of opportunities to try nutritious food. Provide a good multivitamin to bridge any nutritional gaps while healthy eating styles develop.