Glossary · Growth

Length-for-age

For children under age 2, length (measured lying down) rather than standing height is the relevant linear-growth measure. Length-for-age below the 5th percentile sustained over time can suggest chronic undernutrition, genetic factors, or underlying medical issues warranting workup.

Related terms

BMI percentile (children)
Growth chart
Growth spurt
Catch-up growth
Failure to thrive
Childhood obesity

Miriel uses this concept across food scans, meal plans, and AI Coach responses where it is relevant to a child's profile. For the underlying clinical and scientific basis, see the research page.