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Zinc Plus 25 mg

Nature's Answer
4.7
★ ★ ★ ★ ★
(775 ratings)
Zinc 25 mg
Copper 1 mg
Product Image
Score81
A well-formed zinc formula with copper and P5P, but an ambiguous 25-versus-50 mg zinc total must be resolved before use.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
General Health
Skin Health
Immunity
Testosterone Support
Hair Health
Vision Support
Bone Health

Score 81

A well-formed zinc formula with copper and P5P, but an ambiguous 25-versus-50 mg zinc total must be resolved before use.
How scoring works
$11.99($0.19 per serving)
Pure Formulas
$ 11.99
iHerb
$ 11.99
Vitacost
$ 11.99
Report prices

Analysis

Zinc citrate and picolinate are useful forms, supported by 1 mg copper and 3 mg active P5P. The one-capsule serving is convenient and affordable.

The supplied data lists 25 mg zinc for each of two forms, which may describe a shared total or a 50 mg combined amount. That distinction materially changes suitability for daily use.

It fits adults seeking focused zinc support only after checking the current label total. Copper inclusion is helpful, but it may be insufficient if the actual zinc dose is 50 mg.

Who is it for
  • Adults needing focused zinc support
  • Users who prefer citrate and picolinate forms
  • People willing to verify the label total
Best for
  • Zinc supplementation
  • Immune nutrient support
  • Skin and hair nutrient coverage

Pros

  • Uses zinc citrate and picolinate
  • Includes copper
  • Provides active P5P
  • One-capsule serving

Cons

  • Actual zinc total is ambiguous
  • Could be excessive for routine use
  • Copper may be low if zinc totals 50 mg
  • Not a broad multivitamin

Warnings

  • Verify whether the total zinc is 25 mg or 50 mg before use
  • Long-term excess zinc can cause nausea and copper deficiency
  • Zinc can reduce absorption of tetracycline or quinolone antibiotics

Nutrient quality

89 Highest impact

Zinc citrate and picolinate plus active-form vitamin B6 provide favorable forms, while copper gluconate is more ordinary, and the 25 mg zinc amount is substantial, while 1 mg copper provides only modest balance. The zinc amount remains below the adult upper limit, though prolonged use increases the importance of adequate copper, while zinc and copper form a coherent mineral-balance formula without mismatched additions.

.

Ingredient transparency

73 High impact

Core amounts are listed, but repeated mineral forms make their totals ambiguous, and no proprietary blend hides the amount of a listed active ingredient. Serving count is supplied, but complete daily-use directions are not provided, while inactive ingredients and excipients are not included in the supplied label details.

.

Customer satisfaction

72 High impact

The supplied average rating is strong, and moderate review volume provides a reasonable evidence base. Specific review themes are unavailable, so repeated negatives and real-world fit remain uncertain.

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Value for money

91 Highest impact

Useful forms and meaningful amounts generally justify the product positioning, and the low serving cost provides strong practical value. The formula is focused and does not appear padded with low-value active ingredients, while the formula and serving value compare well with similar products.

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Report analysis

Goals

General Health
General Health
Impact
Highest effect
A Goal FitA+ Strength of SupportB CoverageA+ Formula Quality
Zinc · 25 mg

Zinc in two absorbable forms provides focused support for immune readiness, antioxidant defenses, and normal enzyme activity. Active vitamin B6 and copper complement the mineral without turning the product into an overly broad blend.

The zinc amount is substantial, and included copper helps protect mineral balance during regular use. Clear form and amount disclosure make the intended daily contribution easy to evaluate.

Study evidence
Zinc Supportive 60 studies
Skin Health
Skin Health
Impact
Highest effect
B+ Goal FitA Strength of SupportB- CoverageA Formula Quality
Zinc · 25 mgCopper · 1 mg

Zinc supports skin repair and cell turnover, while copper contributes to collagen and elastin cross-linking. Both minerals have established physiological roles, though they do not directly address hydration or barrier lipids.

The zinc amount is substantial and uses picolinate plus citrate, while copper is clearly disclosed as gluconate. The zinc-to-copper balance is high, so prolonged daily use may still place pressure on copper status.

Study evidence
Copper Supportive 16 studies
Zinc Supportive 66 studies
Immunity
Immunity
Impact
Highest effect
A- Goal FitA- Strength of SupportB- CoverageA- Formula Quality
Zinc · 25 mg

Zinc is paired with copper and active vitamin B6 to support immune, enzyme, and metabolic functions. Recognized forms and clearly stated amounts make the core contribution easy to assess.

The zinc amount is substantial, while the included copper helps reduce the imbalance concern of a zinc-only formula. Long-term users should still account for zinc and copper from other supplements to avoid excessive combined intake.

Study evidence
Zinc Supportive 73 studies
Testosterone Support
Testosterone Support
Impact
High effect
B- Goal FitA+ Strength of SupportC CoverageA- Formula Quality
Zinc · 25 mg

Zinc provides a relevant route to testosterone support. The disclosed amount appears meaningful for that focused role.

The formula remains narrow rather than comprehensive. Zinc Plus 25 mg is best viewed as targeted support rather than proof of a clinical benefit.

Study evidence
Zinc Disputed 7 studies
Hair Health
Hair Health
Impact
High effect
B Goal FitA Strength of SupportD+ CoverageA Formula Quality
Zinc · 25 mg

Twenty-five milligrams of zinc may support follicle cell division when zinc status is low, and included copper partly protects mineral balance. P-5-P vitamin B6 adds a useful cofactor but does not broaden the formula into complete hair support.

Picolinate and citrate are well-absorbed zinc forms with clear disclosure. The zinc-to-copper balance remains high enough that prolonged use alongside other zinc products could still reduce copper status.

Study evidence
Copper Adverse 4 studies
Zinc Supportive 22 studies
Vision Support
Vision Support
Impact
High effect
C+ Goal FitB+ Strength of SupportD+ CoverageB+ Formula Quality
Zinc · 25 mgCopper · 1 mg

Zinc supports retinal function and vitamin A transport, with copper helping balance ongoing zinc use. The zinc-copper relationship has established relevance in ocular nutrient formulas, though the product lacks other core actives.

The 25 mg zinc amount is substantial and the 1 mg copper amount provides partial balance. Zinc and copper are logically paired to reduce mineral imbalance risk.

Study evidence
Copper Supportive 7 studies
Zinc Supportive 39 studies
Bone Health
Bone Health
Impact
High effect
C Goal FitB Strength of SupportD CoverageB+ Formula Quality
Copper · 1 mgZinc · 25 mg

Zinc and copper support bone-forming enzymes and collagen cross-linking, while active B6 adds cofactor support. The formula does not provide calcium, magnesium, vitamin D, vitamin K, or collagen.

Zinc citrate and picolinate are suitable forms at a substantial amount. The high zinc-to-copper ratio may reduce copper status during long-term use despite the included copper.

Study evidence
Copper Disputed 20 studies
Zinc Supportive 33 studies

Ingredients

IngredientAmount per serving
Vitamin B6 (Pyridoxal 5-Phosphate)
 3 mg
Zinc (Zinc Citrate, Zinc Picolinate)
 25 mg
Copper (Copper Gluconate)
 1 mg
Gluten Free Adults 18–50 Vegan Women Vegetarian
Report overview
Zinc (Zinc Citrate, Zinc Picolinate) · 25 mg OverallScore92
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

The zinc blend pairs highly absorbable picolinate with effective citrate in a vegetarian capsule. Its daily dose is substantial without exceeding the usual adult upper limit, and included copper helps protect mineral balance during regular use. The cost per serving is favorable for these forms and dose.

View ingredientView products
Copper (Copper Gluconate) · 1 mg OverallScore67
C- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA Value

Copper gluconate provides a clearly disclosed dose in a common but less bioavailable form. The copper amount meets basic daily needs but is below the collection benchmark. A zinc-to-copper ratio near twenty-five to one may still suppress copper absorption during long-term use despite the included copper.

View ingredientView products
Loading alternative details
87 Performance

Zinc Balance

Jarrow Formulas
The focused zinc-and-copper pairing uses meaningful amounts and a sensible mineral balance. Its clearer zinc dose or more balanced mineral pairing improves sustained-use practicality compared with the original’s repeated zinc entries and modest copper balance.
87 Performance

Zinc Picolinate 25 mg

Thompson
Picolinate is a well-absorbed zinc form, and the amount is meaningful without crossing the usual adult upper limit. Its clearer zinc dose or more balanced mineral pairing improves sustained-use practicality compared with the original’s repeated zinc entries and modest copper balance.
87 Performance

Zinc Picolinate 22 mg

Solgar
Picolinate offers strong absorption potential at a useful maintenance amount. Its clearer zinc dose or more balanced mineral pairing improves sustained-use practicality compared with the original’s repeated zinc entries and modest copper balance.
84 Budget

Zinc Gluconate 30 mg

Swanson
Gluconate provides reasonable absorption at a substantial zinc amount. It provides a comparable zinc amount at lower recurring cost, although it does not include the original’s active vitamin B6 and may omit copper.
85 Budget

Zinc 30 mg

Nature Made
Zinc gluconate provides a meaningful amount in a focused, very inexpensive tablet. It provides a comparable zinc amount at lower recurring cost, although it does not include the original’s active vitamin B6 and may omit copper.
85 Budget

Zinc Chelate 30 mg

Nature's Way
Zinc bisglycinate provides a well-absorbed form at a robust daily amount. It provides a comparable zinc amount at lower recurring cost, although it does not include the original’s active vitamin B6 and may omit copper.
86 Value

L-OptiZinc 30 mg

NOW
Zinc monomethionine provides excellent absorption potential at a substantial amount. It pairs a highly absorbable zinc form with favorable serving value, though copper support varies across these focused formulas.
85 Value

Chelated Zinc 30 mg

Swanson
A branded glycinate chelate offers excellent absorption potential at a substantial amount. It pairs a highly absorbable zinc form with favorable serving value, though copper support varies across these focused formulas.
85 Value

OptiZinc

Source Naturals
Zinc methionine provides a well-absorbed chelated form at a robust amount, and added copper offers partial balance. It pairs a highly absorbable zinc form with favorable serving value, though copper support varies across these focused formulas.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
    Ju Y; Xiong W; Pang Y; Chen Z; Hou J; Zheng S; Li Z; Liu T; Xia H; Xia M; Zhong Y; Li J; Jiang X · Biological trace element research · 2026
    Scoping review18 studies pooledBone Health forCopper
  2. Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
    Chen M; Jia L; Gao R · Frontiers in nutrition · 2024
    Cohort study5,286 participantsBone Health forCopper
  3. Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
    Hu M; Wang Z; Li C; Zheng Y; Hu J · Medicine · 2025
    Cross-sectional studyBone Health forCopper
  4. The association between dietary mineral intake and bone mineral density: a cross-sectional study.
    Wei M; Wei J; Huang S · Journal of health, population, and nutrition · 2025
    Cross-sectional study11,520 participantsBone Health forCopper
  5. Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
    Cui A; Yan J; Li H; Fan Z; Wei X; Wang H; Zhuang Y · PloS one · 2024
    Cross-sectional study6,965 participantsBone Health forCopper
  6. Increased incidence of fractures in middle-aged and elderly men with low intakes of phosphorus and zinc.
    Elmståhl S; Gullberg B; Janzon L; Johnell O; Elmståhl B · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 1999
    Cohort study6,576 participantsBone Health forZinc
  7. Zinc Supplementation Increases Procollagen Type 1 Amino-Terminal Propeptide in Premenarcheal Girls: A Randomized Controlled Trial.
    Berger PK; Pollock NK; Laing EM; Chertin V; Bernard PJ; Grider A; Shapses SA; Ding KH; Isales CM; Lewis RD · The Journal of nutrition · 2016
    Randomized trial147 participantsBone Health forZinc
  8. Randomized controlled trial of prenatal zinc supplementation and fetal bone growth.
    Merialdi M; Caulfield LE; Zavaleta N; Figueroa A; Costigan KA; Dominici F; Dipietro JA · The American journal of clinical nutrition · 2004
    Randomized trial242 participantsBone Health forZinc
  9. The effects of zinc supplementation on serum zinc, alkaline phosphatase activity and fracture healing of bones.
    Sadighi A; Roshan MM; Moradi A; Ostadrahimi A · Saudi medical journal · 2009
    Randomized trial60 participantsBone Health forZinc
  10. Is Zinc an Important Trace Element on Bone-Related Diseases and Complications? A Meta-analysis and Systematic Review from Serum Level, Dietary Intake, and Supplementation Aspects.
    Ceylan MN; Akdas S; Yazihan N · Biological trace element research · 2021
    Meta-analysis40 studies pooledBone Health forZinc
  11. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  12. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsGeneral Health forZinc
  13. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  14. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  15. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  16. Menkes disease and response to copper histidine: An Indian case series.
    Yoganathan S; Sudhakar SV; Arunachal G; Thomas M; Subramanian A; George R; Danda S · Annals of Indian Academy of Neurology · 2022
    Case series4 participantsHair Health forCopper
  17. Trace element levels in alopecia areata.
    Bhat YJ; Manzoor S; Khan AR; Qayoom S · Indian journal of dermatology, venereology and leprology · 2009
    Case-control study100 participantsHair Health forCopper
  18. UV damage to hair and the effect of antioxidants and metal chelators.
    Millington KR; Marsh JM · International journal of cosmetic science · 2021
    In vitro / ex vivo studyHair Health forCopper
  19. Preserving fibre health: reducing oxidative stress throughout the life of the hair fibre.
    Marsh JM; Davis MG; Lucas RL; Reilman R; Styczynski PB; Li C; Mamak M; McComb DW; Williams RE; Godfrey S; Navqi KR; Chechik V · International journal of cosmetic science · 2016
    In vitro / ex vivo studyHair Health forCopper
  20. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  21. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
    Randomized trialHair Health forZinc
  22. A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
    Randomized trial40 participantsHair Health forZinc
  23. BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  24. Analysis of serum zinc and copper concentrations in hair loss.
    Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
    Case-control study342 participantsHair Health forZinc
  25. Nutrient supplementation for prevention of viral respiratory tract infections in healthy subjects: A systematic review and meta-analysis.
    Vlieg-Boerstra B; de Jong N; Meyer R; Agostoni C; De Cosmi V; Grimshaw K; Milani GP; Muraro A; Oude Elberink H; Pali-Schöll I; Roduit C; Sasaki M; Skypala I; Sokolowska M; van Splunter M; Untersmayr E; Venter C; O'Mahony L; Nwaru BI · Allergy · 2022
    Meta-analysis199,055 participants115 studies pooledImmunity forZinc
  26. Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial.
    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
  27. A randomized controlled trial of zinc supplementation in the treatment of acute respiratory tract infection in Thai children.
    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  28. The effect of zinc and vitamin A supplementation on immune response in an older population.
    Fortes C; Forastiere F; Agabiti N; Fano V; Pacifici R; Virgili F; Piras G; Guidi L; Bartoloni C; Tricerri A; Zuccaro P; Ebrahim S; Perucci CA · Journal of the American Geriatrics Society · 1998
    Randomized trial136 participantsImmunity forZinc
  29. The role of specific nutrients in preventing immune system and blood cell disorders: an umbrella review.
    Vecchietti A; Strano P; Minutolo G; Grieco V; Cappuccio G; Granvillano G; Confalonieri L; Briganti GL; Raso E; Chimienti M; Pellegrini M; Mercogliano M; Spatari G; Lugli C; Urbano T; Lorenzon A · Journal of preventive medicine and hygiene · 2026
    Systematic review13 studies pooledImmunity forZinc
  30. Noninferiority of Copper Dressings Than Negative Pressure Wound Therapy in Healing Diabetic Wounds: A Randomized Clinical Trial.
    Melamed E; Dabbah J; Israel T; Kan I; Pinzur MS; Roth T; Borkow G · Advances in wound care · 2026
    Randomized trialSkin Health forCopper
  31. Improvement of facial skin characteristics using copper oxide containing pillowcases: a double-blind, placebo-controlled, parallel, randomized study.
    Borkow G; Gabbay J; Lyakhovitsky A; Huszar M · International journal of cosmetic science · 2010
    Randomized trial57 participantsSkin Health forCopper
  32. Radially Electrospun Fibrous Membrane Incorporated with Copper Peroxide Nanodots Capable of Self-Catalyzed Chemodynamic Therapy for Angiogenesis and Healing Acceleration of Diabetic Wounds.
    Huang Y; Qi L; Liu Z; Jiang Y; Wang J; Liu L; Li Y; Zhang L; Feng G · ACS applied materials & interfaces · 2023
    Animal experimentSkin Health forCopper
  33. Engineering copper nanoparticle/polysaccharide-immobilized cotton gauze for accelerated healing of Staphylococcus aureus-infected dermal wounds.
    Sahoo M; Banerjee T; Virkar S; Das S; Biswas S; Mitra D · Journal of materials chemistry. B · 2026
    Animal experimentSkin Health forCopper
  34. Stimulation of Healing of Non-Infected Stagnated Diabetic Wounds by Copper Oxide-Impregnated Wound Dressings.
    Melamed E; Rovitsky A; Roth T; Assa L; Borkow G · Medicina (Kaunas, Lithuania) · 2021
    Single-arm trialSkin Health forCopper
  35. Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
    Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
    Meta-analysis2,088 participants20 studies pooledSkin Health forZinc
  36. Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
    Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
    Cohort study23 participantsSkin Health forZinc
  37. Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
    Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
    Randomized trial30 participantsSkin Health forZinc
  38. A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
    Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
    Randomized trial90 participantsSkin Health forZinc
  39. Evidence-Based Nutritional Interventions in Wound Care.
    Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
    Systematic review2,339 participants36 studies pooledSkin Health forZinc
  40. Environmental exposure to metals and male reproductive hormones: circulating testosterone is inversely associated with blood molybdenum.
    Meeker JD; Rossano MG; Protas B; Padmanahban V; Diamond MP; Puscheck E; Daly D; Paneth N; Wirth JJ · Fertility and sterility · 2010
    Cross-sectional study219 participantsTestosterone Support forZinc
  41. Nonpharmacological Interventions for the Management of Testosterone and Sperm Parameters: A Scoping Review.
    Santos HO; Cadegiani FA; Forbes SC · Clinical therapeutics · 2022
    Scoping reviewTestosterone Support forZinc
  42. Zinc is an Essential Element for Male Fertility: A Review of Zn Roles in Men's Health, Germination, Sperm Quality, and Fertilization.
    Fallah A; Mohammad-Hasani A; Colagar AH · Journal of reproduction & infertility · 2020
    Narrative reviewTestosterone Support forZinc
  43. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  44. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  45. What did we learn in 35 years of research on nutrition and supplements for age-related macular degeneration: a systematic review.
    Pameijer EM; Heus P; Damen JAA; Spijker R; Hooft L; Ringens PJ; Imhof SM; van Leeuwen R · Acta ophthalmologica · 2023
    Systematic review27 studies pooledVision Support forCopper
  46. Dietary Nutrient Intake and Progression to Late Age-Related Macular Degeneration in the Age-Related Eye Disease Studies 1 and 2.
    Agrón E; Mares J; Clemons TE; Swaroop A; Chew EY; Keenan TDL; AREDS and AREDS2 Research Groups · Ophthalmology · 2021
    Cohort study8,242 participantsVision Support forCopper
  47. Association between late age-related macular degeneration and dietary intake of copper, iron, zinc and selenium: a 2005-2008 NHANES cross-sectional observational study.
    Lu Y; Li C; Liu Y; Wu T; Lu P · BMC ophthalmology · 2025
    Observational study4,996 participantsVision Support forCopper
  48. Associations between dietary nutrient intake and the risk of multiple age-related ocular diseases: evidence from longitudinal analysis.
    Yang Y; Zou H · The journal of nutrition, health & aging · 2026
    Cohort study103,192 participantsVision Support forCopper
  49. Dietary habits and dietary nutrient intake in patients with age-related macular degeneration: A case-control study.
    Šalková Kráľová J; Kolář P; Kapounová Z; Veselý P; Derflerová Brázdová Z · Central European journal of public health · 2023
    Case-control study151 participantsVision Support forCopper
  50. Antioxidant vitamin and mineral supplements for age-related macular degeneration.
    Evans JR · The Cochrane database of systematic reviews · 2002
    Systematic review170 participants7 studies pooledVision Support forZinc
  51. Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration.
    Evans JR; Lawrenson JG · The Cochrane database of systematic reviews · 2023
    Meta-analysis3,790 participants5 studies pooledVision Support forZinc
  52. Oral zinc in macular degeneration.
    Newsome DA; Swartz M; Leone NC; Elston RC; Miller E · Archives of ophthalmology (Chicago, Ill. : 1960) · 1988
    Randomized trial151 participantsVision Support forZinc
  53. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8.
    Age-Related Eye Disease Study Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2001
    Randomized trial3,640 participantsVision Support forZinc
  54. Effect of vitamin A and zinc supplementation on the nutriture of children in Northeast Thailand.
    Udomkesmalee E; Dhanamitta S; Sirisinha S; Charoenkiatkul S; Tuntipopipat S; Banjong O; Rojroongwasinkul N; Kramer TR; Smith JC · The American journal of clinical nutrition · 1992
    Randomized trial133 participantsVision Support forZinc