Is 2 mg of copper a day safe?
2 milligrams (2,000 micrograms) of copper is within the adult upper limit of 10,000 micrograms (10 milligrams) a day. That is about 2.2 times the adult RDA of 900 micrograms.
General information, not medical advice. Check with a doctor or pharmacist before taking a supplement, especially if you are pregnant or breastfeeding, take any medicine, or are under 18.
In the UK
2 milligrams (2,000 micrograms) of copper is within the NHS guidance of 10 milligrams a day from food, water and supplements together. In the UK, adults need 1.2 milligrams a day.
The figures
| US (NIH) | UK (NHS) | |
|---|---|---|
| Amount checked | 2 mg (2,000 mcg) | |
| Answer | Within the upper limit | Within NHS guidance |
| Compared with | 10,000 micrograms (10 milligrams) a day | 10 milligrams a day from food, water and supplements together |
| Share of the limit | 20% of the limit | 20% of the limit |
| Adults need | 900 micrograms a day | 1.2 milligrams a day |
Quick answers
- Is 2 mg of copper a day safe?
- 2 milligrams (2,000 micrograms) of copper is within the adult upper limit of 10,000 micrograms (10 milligrams) a day. That is about 2.2 times the adult RDA of 900 micrograms.
- What does the NHS say about 2 mg of copper?
- 2 milligrams (2,000 micrograms) of copper is within the NHS guidance of 10 milligrams a day from food, water and supplements together. In the UK, adults need 1.2 milligrams a day.
- What is the upper limit for copper?
- US: 10,000 micrograms (10 milligrams) a day. UK (NHS): 10 milligrams a day from food, water and supplements together.
Sources
- NIH Office of Dietary Supplements fact sheet
https://ods.od.nih.gov/factsheets/Copper-HealthProfessional/ - NHS vitamins and minerals guidance
https://www.nhs.uk/conditions/vitamins-and-minerals/others/
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