mineral

Copper supplements

Half of the 6,468 copper supplements in the NIH label database that print an amount list 1 mg or less per serving; the middle half list 0.5 mg to 2 mg, and 1 in 1,067 of the 6,401 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 60 products whose only supplement ingredient is copper list a median of 2 mg, and 1 in 60 of them give more than the upper limit.

How much copper do supplements contain?

The median product lists 1 mg per serving. One in ten lists 0.2 mg or less, one in ten 2 mg or more. The amount printed most often is 2 mg (1,866 products).

How do the amounts compare with the Daily Value and the upper limit?

The FDA Daily Value for copper is 0.9 mg (adults and children 4 and older). The median product gives 111% of it per serving; the 90th percentile 222%.

The adult Tolerable Upper Intake Level is 10 mg a day (total intake from food, water and supplements). At the most servings their labels direct, 6 of the 6,401 products with a plausible amount (0.1%) give more than that from the supplement alone (what counts as plausible).

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which products list the most copper?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• Copper Bisglycinate 8 mgDr. Mercola8 mg
• Osteo Therapy+Pharmaden7 mg
• Chlorofresh UnflavoredNature's Way6 mg
• Chlorofresh Liquid Chlorophyll Mint FlavoredNature's Way6 mg
• Forever VisionForever5 mg
• AM PackDouglas Laboratories5 mg
• Toki ColorLaneLabs5 mg
• Chloropure Liquid Chlorophyll Mint FlavorCountry Farms5 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 1.05 mg; those entered in 2025, 1 mg.

In which products and brands?

Brands listing it most: Douglas Laboratories (170), Nature's Way (149), Nature's Plus (100), Bronson (62), Metagenics (56), Country Life (53), Bluebonnet (51), Vitamin World (50), NOW (49), Rainbow Light (47).

Every product listing copper

6,782 products, A to Z by name (page 29 of 136), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Connect-All Glucosamine SulfateNature's Plus · off the market1 mg
• ConnectionNutriCology0.4 mg
• Cooper Complete with IronCooper Complete · off the market2 mg
• CopperDouglas Laboratories2 mg
• CopperAngstrom Minerals · off the marketin a blend
• CopperMineralife · off the market2 mg
• CopperZemvelo2 mg
• Copper (Citrate)Pure Encapsulations2 mg
• Copper (Glycinate)Pure Encapsulations2 mg
• Copper 2GNC · off the market2 mg
• Copper 2 mgDouglas Laboratories2 mg
• Copper 2 mgBronson Laboratories2 mg
• Copper 2 mgGNC · off the market2 mg
• Copper 2 mgSeeking Health2 mg
• Copper 2 mgSwanson Premium Brand · off the market2 mg
• Copper 2 mgThe Vitamin Shoppe2 mg
• Copper 2 mgSolaray2 mg
• Copper 2 mgNuMedica2 mg
• Copper 2 mgSwanson2 mg
• Copper 3 mgNatures Plus · off the market3 mg
• Copper 3 mgNutraBio3 mg
• Copper 3 mgNaturesPlus3 mg
• Copper 30 PPMNutriNochein a blend
• Copper 30 ppmOrgana Crystalline Nano0.15 mg
• Copper BisglycinateThorne Research · off the market2 mg
• Copper BisglycinateThorne2 mg
• Copper Bisglycinate 8 mgDr. Mercola8 mg
• Copper Chelate 3 mgNutraBio · off the market3 mg
• Copper Chelated Form FormulaTumoRxin a blend
• Copper Citrate 2 mgSolaray2 mg
• Copper ConcentrateComplete H2O Minerals1.13 mg
• Copper GluconateBulkSupplements.com2 mg
• Copper Gluconate Anyhdrous 1%PureBulk.com1.6 mg
• Copper Glycinate 3 mgNOW3 mg
• Copper L-Aspartate 1%PureBulk.com1.6 mg
• Copper Liver ChelateSP Standard Process2 mg
• Copper PicolinateThorne Research · off the market2 mg
• Copper PlusTrace Nutrients2 mg
• Copper SebacateAllergy Research Group4 mg
• Copper SebacateSource Naturals3 mg
• Copper SebacateNutriCology4 mg
• Copper Sebacate 22 mgSource Naturals3 mg
• Coral Cal Mag 2:1Coralin a blend
• Coral Cal Mag 2:1EcoSafein a blend
• Coral CAL-MAG with K2Dr. Clark Storein a blend
• Coral CalciumCalifornia Academy of Health3 mg
• Coral CalciumGenesis Pure30 mg as transcribed, likely a slip
• Coral Calcium "Choice"Nature's Answer · off the market2.4 mg
• Coral Calcium 1000 mgNature's Answer2 mg
• Coral Calcium 750 mgBIOVEA3 mg

Where next?

• Check an amount of copper
• Labels above the upper limit
• All ingredients