The short answer · Copper status
Take copper gluconate for copper status. This is the one to buy.

Jarrow Formulas, Vegan Zinc Balance, 100 Veggie Capsules
4.8· 38,011 ratings· $0.12/serving
Copper Gluconate 1 mg — inside the studied 1-4 mg window
Of 3,251 products scored for Copper status, Jarrow Formulas, Vegan Zinc Balance, 100 Veggie Capsules ranks #1 with a DoseRank score of 86. Copper Gluconate is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Copper Gluconate — not Zinc Sulfate or Zinc Citrate?”Evidence Strong evidence
Copper Gluconate is the strongest evidence signal for this outcome.
- Copper GluconateThe pick
Strong evidence · 1 mg
Organic copper salt with moderate bioavailability, better tolerated than the sulfate; supports enzyme function, iron metabolism, and connective tissue.
- Zinc Sulfate
Strong evidence · 15 mg
Cheap inorganic zinc with solid elemental content but a higher rate of nausea and stomach upset; common in budget supplements and studies.
- Zinc Citrate
Strong evidence · 8.3 mg (calculated)
Organic zinc salt with good absorption and mild GI tolerability; a practical mid-range pick between cheap sulfate and premium chelates.
The dose“Is the dose actually effective?”Dose fit 67
Copper Gluconate at 1 mg lands inside the studied 1-4 mg window.
Copper Gluconate
Studied window 1-4 mg · this pick 1 mg
The ranking“Why should I trust this pick?”Trust 95
Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 3,251 products scored
- Never paid placement
- Evidence level: Strong · 92
- 352 brands
- 18 ingredients
The price“Can I do better than $0.12 a serving?”Value 81
$0.12 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.07 per serving.
- 221st Century, One Daily, Women's, 100 TabletsScore 85 · $0.07/servingiHerb
- 821st Century, One Daily, Maximum, 100 TabletsScore 81 · $0.07/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.12 a serving.Jarrow Formulas, Vegan Zinc Balance, 100 Veggie Capsules — in stock at a tracked retailer.
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Jarrow Formulas, Vegan Zinc Balance, 100 Veggie Capsules ranks #1 for Copper status with a DoseRank score of 86. The score blends clinical strength, evidence, dose fit, trust signals and value across 3,251 products scored for this outcome.