You can get that by extrapolation.

Experimental data are often only available for a limited age/gender group. The setting of recommendations for other groups may require extrapolation of the data. This is sometimes based on energy requirements, but more commonly on a metabolic body weight.

Extrapolations from adult Estimated Average Requirements (EAR) to children’s requirements were mostly done using the formula:

EARchild = EARadult x F

where F = (Weightchild/Weightadult)0.75 x (1 + growth factor).

Charles Nnanna Chukwu This was very useful. Thank you

You can check this: https://www.nrv.gov.au/introduction for more information