Two- to five-year-olds may be small, but they're growing and that means they need more energy (calories) for their size. If your child is underweight, it's crucial they get their energy from a healthy and balanced diet.
If you're concerned that your child is underweight or not growing normally, see your GP. Low weight can occur for a number of reasons.
The GP will weigh and measure your child and talk to you about what your child is eating. If there is a possible problem with your child's diet, your GP can provide advice that will help bring your child up to a healthy weight, or refer them to a dietitan.
Paediatric dietitian Jacqui Lowden, from the Manchester Children's Hospital, says a varied diet will see most underweight children achieve a healthy weight.