Supplements

Phosphorus in supplements · page 65

3,084 supplements on the U.S. market list Phosphorus with an amount per serving. The official Tolerable Upper Intake Level for adults is 4,000 mg a day.

Tolerable Upper Intake Level (UL)

The highest daily amount that is unlikely to cause harm for almost all healthy people, from food, drinks and supplements combined.

AgeMenWomenPregnancyBreastfeeding
0-6 months————
7-12 months————
1–3 years3,000 mg3,000 mg——
4–8 years3,000 mg3,000 mg——
9–13 years4,000 mg4,000 mg——
14–18 years4,000 mg4,000 mg3,500 mg4,000 mg
19–50 years4,000 mg4,000 mg3,500 mg4,000 mg
51–70 years4,000 mg4,000 mg——
71+ years3,000 mg3,000 mg——

Source: NIH ODS Phosphorus Fact Sheet for Health Professionals, Table 3 (updated 2023-05-04).