Phosphorus RDI
Article navigation
Phosphorus has a recommended daily intake which is different for the various age groups and genders.
Find your recommended daily intake of phosphorus below:
- Infants (0-6 months) - 100mg
- Infants (7-12 months) - 275mg
- Children (1-3 years) - 460mg
- Children (4-8 years) - 500mg
- Children (9-18 years) - 1250mg
- Adults (>19 years) - 700mg
- Pregnant and lactating women (<18 years) - 1250mg
- Pregnant and lactating women (19-50) - 700mg
There is an established recommended daily intake (RDI) and tolerable upper limit for phosphorus
Tolerable Upper Limit
There is also a tolerable upper limit for phosphorus - this is the maximum that can be safely taken of this mineral before it produces serious and toxic side effects:
- Infants (0- 12 months) - not established*
- Children (1-8 years) - 3000mg
- Children (9-18 years) - 4000mg
- Adults (19-70 years) - 4000mg
- Adults (>70 years) - 3000mg
- Pregnant women (all ages) - 3500mg
- Lactating women (all ages) - 4000mg
* The tolerable upper limit for phosphorus for infants aged 0-12 months has not yet been determined due to a lack of data about the adverse effects in this age group and a concern about the lack of ability of the body of infants to handle excess amounts. The only source of phosphorus intake should be from food (breast milk and/or baby formula) to prevent high levels of intake and possible adverse effects.