Although getting too many extra calories is a more common problem, for picky eaters, kids with poor eating habits, and kids with a poor appetite, it can be helpful to try and increase or boost your child's calories to help them gain weight normally.
Review this list of high calorie foods to avoid, especially if your kids are overweight, and some you might want to encourage your kids to eat if they are poor eaters and underweight and you are trying to boost their calories.
Nestle Carnation Instant Breakfast Powder Drink Mix is an easy and inexpensive way to boost the amount of calories, calcium, iron, and other nutrients in your child's diet.
Review these ways that you can provide your child with more calories by offering high calorie foods that are also high in protein with lots of nutrients.