Validity of the PortionSize App to Measure Children's Food Intake

Evaluating the Validity of a Novel Tool to Measure Children's Food Intake and Improve Health

The purpose of this study is to assess the validity of the PortionSize™ app to quantify children's own dietary intake and children's intake by parents or caregivers.

The investigators will recruit 40 dyads (40 children aged 7-12 years old and 40 parents or caregivers) using a convenience sample for this pilot study. Children and their parents or caregivers will be trained to use the PortionSize app at Pennington Biomedical Research Center (PBRC). Children will use the PortionSize app and estimate food intake from pre-weighed meals (simulated meals) at PBRC clinic. Children will not consume the simulated meals. Children's parents or caregivers will also use the PortionSize app and estimate the food intake of their children (at least one meal and a snack each day) for two consecutive days at home.

Inclusion Criteria:

• Male or female
• Children (7-12 years) and their parents or caregivers (18-62 years)
• Parents who have Willingness to use the PortionSize app to estimate the intake of their child food intake (normal/regular diet) from at least a snack and a meal of child for two consecutive days
• Have iPhone (version 6 or above) and an operable Apple ID, password, and email address, and able to use iPhone

Exclusion Criteria:

• Any condition or circumstance that could impede study completion
• Child who is a very choosy eater or has a very limited food choice