Supplements
Calcium in supplements · page 251
14,548 supplements on the U.S. market list Calcium with an amount per serving. The official Tolerable Upper Intake Level for adults is 2,500 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.
| Age | Men | Women |
|---|---|---|
| 0-6 months | 1,000 mg | 1,000 mg |
| 7-12 months | 1,500 mg | 1,500 mg |
| 1–3 years | 2,500 mg | 2,500 mg |
| 4–8 years | 2,500 mg | 2,500 mg |
| 9–13 years | 3,000 mg | 3,000 mg |
| 14–18 years | 3,000 mg | 3,000 mg |
| 19–50 years | 2,500 mg | 2,500 mg |
| 51–70 years | 2,000 mg | 2,000 mg |
| 71+ years | 2,000 mg | 2,000 mg |
Source: NIH ODS Calcium Fact Sheet for Health Professionals, Table 3 (updated 2026-06-22).
Supplements with Calcium
14,548 shown · page 251 of 304
Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).