Mineral
Copper (as Fermented Copper Bisglycinate)
Also known as: copper bisglycinate, fermented copper, chelated copper
Copper is an essential trace mineral required for iron metabolism, collagen synthesis, and fetal development. The bisglycinate chelate form enhances absorption and reduces potential for GI irritation.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Copper (as Fermented Copper Bisglycinate) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Thorne Copper Bisglycinate | 96 A | $0.32 |
| 2 | Thorne Thyroid Health Complex | 90 A | $0.33 |
| 3 | Pure Encapsulations EyeProtect Basics without zinc | 90 A | $1.00 |
| 4 | Jarrow Formulas Zinc Balance (2-Pack) | 90 A | $0.14 |
| 5 | Complement ForHer Hormone Balance and Longevity Multivitamin for Women | 89 A | $0.67 |
| 6 | Pure Encapsulations EyeProtect Basics | 89 A | $1.05 |
| 7 | NOW Foods Liquid Chlorophyll - Mint | 89 A | $0.21 |
| 8 | Thorne Advanced Nutrients | 88 A | $2.40 |
| 9 | Thorne Basic Nutrients 2/Day | 88 A | $0.60 |
| 10 | Thorne Basic Prenatal | 88 A | $1.23 |
| 11 | Thorne Men's Multi 50+ | 88 A | $1.87 |
| 12 | Pure Encapsulations Copper (citrate) | 88 A | $0.21 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Copper (as Fermented Copper Bisglycinate) should I take?
The typical range is 1 mg daily (RDA for pregnant women). throughout pregnancy and lactation
When should I take Copper (as Fermented Copper Bisglycinate)?
with meals preferred. take with food to enhance absorption and minimize GI irritation; separate from high-dose zinc by at least 2 hours.
Which form of Copper (as Fermented Copper Bisglycinate) is best?
copper bisglycinate. Other forms in the catalog: copper citrate.
Is Copper (as Fermented Copper Bisglycinate) safe?
Commonly reported: nausea (rare at normal doses), metallic taste (rare).
Which Copper (as Fermented Copper Bisglycinate) supplement scores highest?
Thorne Copper Bisglycinate, at 96/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Daily target & upper limit
0.9 mg / day · UL 10 mgCopper (as Fermented Copper Bisglycinate) has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:
Copper (as Fermented Copper Bisglycinate) dosage reference →Primary uses
- Iron metabolism and hemoglobin formation
- Collagen and elastin cross-linking
- Antioxidant defense (cytochrome c oxidase)
- Fetal skeletal and nervous system development
How it works
- Cofactor for copper oxidase enzymes
- Involved in iron oxidation and ferroxidase activity
- Required for lysyl oxidase (collagen maturation)
- Component of superoxide dismutase (SOD)
Dosage
- Typical range
- 1 mg daily (RDA for pregnant women)
- Timing
- with meals preferred
- With food
- take with food to enhance absorption and minimize GI irritation; separate from high-dose zinc by at least 2 hours
- Duration
- throughout pregnancy and lactation
- Special populations
- Pregnant women 1 mg/day; lactating women 1.3 mg/day; do not exceed 10 mg/day
Forms
- copper bisglycinate· 70/100
- copper citrate· 70/100
Safety
Common side effects
- nausea (rare at normal doses)
- metallic taste (rare)
Contraindications
- Wilson's disease
- Menkes disease
Products containing Copper (as Fermented Copper Bisglycinate)
Top-scoring supplements in our catalog that list Copper (as Fermented Copper Bisglycinate) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Established physiological role in pregnancy; RCT evidence supporting copper adequacy during pregnancy; deficiency linked to poor fetal outcomes; bisglycinate form confirmed safe and bioavailable.
Grade B: Some human trials support key claims; further confirmation needed.
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.