<Tr> <Td>> 19 years </Td> <Td> 900 </Td> <Td> 3000 </Td> </Tr> <Tr> <Td> Females </Td> <Td> 9--13 years </Td> <Td> 600 </Td> <Td> 1700 </Td> </Tr> <Tr> <Td> 14--18 years </Td> <Td> 700 </Td> <Td> 2800 </Td> </Tr> <Tr> <Td>> 19 years </Td> <Td> 700 </Td> <Td> 3000 </Td> </Tr>

3 active forms of vitamin a in the body