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Zinc Citrate 50 mg

Swanson Premium Brand
4.8
★ ★ ★ ★ ★
(2951 ratings)
Zinc 50 mg
Product Image
Score78
A clearly labeled zinc supplement in a useful form, but the 50 mg amount is too high for routine unsupervised daily use. Lower-dose options fit maintenance better.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Immunity
General Health
Testosterone Support
Skin Health

Score 78

A clearly labeled zinc supplement in a useful form, but the 50 mg amount is too high for routine unsupervised daily use. Lower-dose options fit maintenance better.
How scoring works

Also available as

1 option
30 mg • 60 Capsule(s) servings Zinc 30 mg • 60 Capsule(s) • 60 servings $7.69 ($0.12 per serving)
$4.49($0.07 per serving)
iHerb
$ 4.49
Amazon
$ 8.99
iHerb
$ 4.49
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Analysis

The capsule delivers 50 mg zinc as zinc citrate, a clearly disclosed amount in a usable form. Zinc supports normal immune function and tissue repair, but more is not necessarily more useful when zinc status is already adequate.

The serving exceeds the usual adult daily upper intake level and no copper is included. Repeated use can cause nausea and may gradually impair copper absorption, making the dose the main weakness despite the focused label.

The formula provides only zinc, so it cannot cover the wider pathways involved in skin, hair, vision, general health, fitness, or testosterone support. Its simple format and low cost do not offset the need for careful dosing.

Who is it for
  • Adults using high-dose zinc for a defined short-term need
  • People following clinician-directed zinc supplementation
  • Users who prefer a capsule
Best for
  • Short-term targeted zinc use
  • Clinician-directed deficiency correction
  • Situations where a 50 mg serving is specifically appropriate

Pros

  • Uses zinc citrate rather than zinc oxide
  • Elemental zinc amount is clearly disclosed
  • Focused single-ingredient formula

Cons

  • Exceeds the usual adult daily upper intake level
  • No copper is included
  • Poor fit for routine long-term maintenance
  • Single nutrient provides narrow goal coverage

Warnings

  • Do not use 50 mg daily long term unless a clinician has identified a need
  • High-dose zinc may cause nausea, abdominal upset, or vomiting
  • Sustained use can reduce copper absorption and contribute to anemia or neurologic symptoms
  • Separate zinc from tetracycline or quinolone antibiotics because it can reduce their absorption

Nutrient quality

75 High impact

Zinc citrate provides good absorption in a focused formula. The amount is unnecessarily high for routine use and no copper is included.

Ingredient transparency

82 Highest impact

The zinc form and amount are clear with no hidden blend. Full duration guidance and capsule excipients are missing despite the aggressive amount.

Customer satisfaction

70 High impact

The supplied aggregate result is strong and supported by a large feedback base. No comment-level evidence is available, so recurring problems and purpose-specific experiences remain unknown.

Value for money

83 Highest impact

The serving cost is exceptionally low and the zinc form is good. The excessive amount limits useful value for routine daily supplementation.

Report analysis

Goals

Immunity
Immunity
Impact
High effect
A Goal FitC- Strength of SupportD CoverageB Formula Quality
Zinc · 50 mg

Zinc citrate directly supports immune-cell function and barrier repair in a well-absorbed form. The serving is much larger than needed for routine daily immune support.

A 50 mg daily amount exceeds the usual adult upper intake level and no copper is included. Repeated use can cause nausea and reduce copper absorption, which may lead to blood or nerve problems.

Study evidence
Zinc Supportive 73 studies
General Health
General Health
Impact
High effect
B+ Goal FitC Strength of SupportF CoverageB+ Formula Quality
Zinc · 50 mg

Zinc is a foundational nutrient for immune and cellular function, but the high amount makes this formula poorly balanced for routine general wellness. Zinc citrate is well absorbed and fully disclosed, so the main limitation is dose rather than form quality.

The single-ingredient design is simple but covers only one nutritional pathway. Daily use at this amount exceeds the adult upper intake level and can cause nausea or copper deficiency, making it better suited to short-term or clinician-directed use.

Study evidence
Zinc Supportive 60 studies
Testosterone Support
Testosterone Support
Impact
High effect
C+ Goal FitC Strength of SupportD CoverageA Formula Quality
Zinc · 50 mg

Zinc provides a relevant route to testosterone support. Dose or form uncertainty limits confidence in the practical contribution.

The formula remains narrow rather than comprehensive. Zinc Citrate 50 mg is best viewed as targeted support rather than proof of a clinical benefit.

Study evidence
Zinc Disputed 7 studies
Skin Health
Skin Health
Impact
High effect
B- Goal FitC Strength of SupportD- CoverageA Formula Quality
Zinc · 50 mg

Zinc supports normal skin repair, immune defense, and inflammatory control, especially when zinc status is low. A single-mineral pathway does not address collagen structure, hydration lipids, or photoprotection.

The 50 mg amount exceeds the adult daily upper intake level and is unsuitable for routine unsupervised use. Prolonged use without copper may cause nausea and impair copper status.

Study evidence
Zinc Supportive 66 studies
Hair Health
Hair Health
Impact
Moderate effect
A- Goal FitC- Strength of SupportF CoverageB- Formula Quality
Zinc · 50 mg

Zinc citrate is relevant to follicle growth and may help hair shedding caused by zinc deficiency. The 50 mg serving exceeds the usual adult daily upper intake level, so the dose is poorly suited to unsupervised long-term hair support.

The form is well absorbed and transparently labeled, but more zinc does not imply greater hair benefit once needs are met. Excessive use can disturb copper balance and may create problems that work against healthy hair.

Study evidence
Zinc Supportive 22 studies
Vision Support
Vision Support
Impact
Moderate effect
B- Goal FitD+ Strength of SupportF CoverageC- Formula Quality
Zinc · 50 mg

Zinc supports retinal vitamin A handling and antioxidant enzymes, but the 50 mg serving exceeds the adult daily upper limit. It is not a complete vision formula and does not reproduce the balanced AREDS2 combination.

The single ingredient lacks lutein, zeaxanthin, copper, vitamins C and E, and omega-3 fats. Repeated use at this amount can cause nausea and copper deficiency, potentially leading to anemia, nerve problems, and reduced immune function.

Study evidence
Zinc Supportive 39 studies

Ingredients

IngredientAmount per serving
Zinc (Zinc Citrate)
 50 mg
Adults 18–50
Report overview
Zinc (Zinc Citrate) · 50 mg OverallScore74
B+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyA+ Value

Zinc citrate offers good absorption in a practical capsule. The high amount exceeds the daily upper limit and lacks copper, creating a meaningful concern for long-term use. The very low serving cost provides strong value for short-term or supervised use.

View ingredientView products
Loading alternative details
96 Performance

Zinc Picolinate 25 mg

Thompson
A practical, well-absorbed zinc amount is safer for routine use than the original high-dose formula. Picolinate is a well-absorbed zinc form, and the amount is meaningful without crossing the usual adult upper limit. The simple formula and very low serving cost make it a practical zinc supplement.
95 Performance

Zinc Picolinate 22 mg

Solgar
A practical, well-absorbed zinc amount is safer for routine use than the original high-dose formula. Picolinate offers strong absorption potential at a useful maintenance amount. The focused formula and very low serving cost make it a practical choice without an obvious dosing excess.
94 Performance

Zinc Picolinate

NutriCology
A practical, well-absorbed zinc amount is safer for routine use than the original high-dose formula. Picolinate provides a well-absorbed form at a strong maintenance amount in a simple capsule. Zinc picolinate is a well-regarded form with favorable absorption.
82 Budget

L-OptiZinc 30 mg

NOW
Lower recurring cost makes this a more economical zinc option than the original while retaining a clearly characterized active profile. Zinc monomethionine provides excellent absorption potential at a substantial amount. A small copper addition is helpful but remains too low to fully balance sustained high zinc use.
80 Budget

Zinc Chelate 30 mg

Nature's Way
Lower recurring cost makes this a more economical zinc option than the original while retaining a clearly characterized active profile. Zinc bisglycinate provides a well-absorbed form at a robust daily amount. The focused capsule is clearly labeled and very inexpensive, but no copper is included.
81 Budget

Chelated Zinc 30 mg

Swanson
Lower recurring cost makes this a more economical zinc option than the original while retaining a clearly characterized active profile. A branded glycinate chelate offers excellent absorption potential at a substantial amount. The simple capsule is highly economical, though sustained use without copper may impair mineral balance.
96 Value

Zinc Picolinate 22 mg

Swanson
A safer amount, strong form quality, and economical use provide better long-term value than the original high-dose formula. Picolinate provides a well-absorbed form at a practical maintenance amount. Zinc picolinate is a well-regarded form with favorable absorption.
96 Value

Zinc Picolinate 25 mg

Kirkman
A safer amount, strong form quality, and economical use provide better long-term value than the original high-dose formula. Zinc picolinate provides a highly absorbable form at a substantial but not excessive amount. Small calcium and phosphorus additions do little to strengthen the zinc formula, while inactive ingredients are not shown.
96 Value

Zinc Picolinate 25 mg

Country Life
A safer amount, strong form quality, and economical use provide better long-term value than the original high-dose formula. Picolinate offers strong absorption at a useful amount below the adult upper limit. The small calcium addition contributes little, and the serving cost is higher than many basic zinc products.
Report alternatives

Sources

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

  1. Dietary Zinc Intake and All-Cause and Cardiovascular Mortality in Korean Middle-Aged and Older Adults.
    Kwon YJ; Lee HS; Park G; Yang J; Kim HM; Lee JW · Nutrients · 2023
    Cohort study143,050 participantsGeneral Health forZinc
  2. 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
  3. 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
  4. Effects of Zinc Supplementation on Inflammatory Skin Diseases: A Systematic Review of the Clinical Evidence.
    Dhaliwal S; Nguyen M; Vaughn AR; Notay M; Chambers CJ; Sivamani RK · American journal of clinical dermatology · 2020
    Systematic review22 studies pooledSkin Health forZinc
  5. 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
  6. Hair Loss and Zinc Deficiency: A Cross-Sectional Study.
    Liran O; Vered S; Cohen B; Shapiro Ben David S; Nakhleh A; Rahamim-Cohen D; Azuri J; Adler L · Healthcare (Basel, Switzerland) · 2025
    Cross-sectional study23,975 participantsHair Health forZinc
  7. 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
  8. 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
  9. Lutein + zeaxanthin and omega-3 fatty acids for age-related macular degeneration: the Age-Related Eye Disease Study 2 (AREDS2) randomized clinical trial.
    Age-Related Eye Disease Study 2 Research Group · JAMA · 2013
    Randomized trial4,203 participantsVision Support forZinc
  10. 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
  11. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  31. 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
  32. 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
  33. 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
  34. 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