Zinc Citrate 50 mg

Zinc Citrate 50 mg

21st Century4.8 (53,326 ratings)
Format:Tablet Quantity: 60 Tablet(s) · 60 servings
Goals
$3.00 $0.05 per serving

About this product

Zinc citrate provides a clearly stated 50 mg dose in a form with favorable absorption characteristics. It may help fill a zinc gap and support normal immune, skin, hair, eye, and reproductive functions, but the evidence is strongest for meeting zinc needs rather than adding benefits when intake is already adequate.

The formula is narrow and easy to understand, with both the zinc and 46 mg of calcium disclosed by amount and form. Calcium contributes little at this dose, so the practical value rests mainly on zinc; the saved findings also show limited pathway breadth for general wellness, skin, hair, eye, and testosterone goals.

The main drawback is the high zinc dose. At 50 mg per serving it exceeds the adult daily upper limit cited in the supplied findings, while no copper amount is listed, making it a poor fit for unsupervised long-term daily use; the very low serving cost is attractive, but it does not offset that formulation concern.

Who is it for
  • Adults seeking a high-dose zinc supplement for limited or professionally guided use
  • People with low zinc intake who want zinc citrate in a clearly labeled dose
Best for
  • Filling a confirmed or likely dietary zinc gap
  • Supporting normal immune function when zinc intake is low
  • Short-term zinc supplementation with professional guidance

Pros

  • Uses zinc citrate, a favorably absorbed form
  • Clearly states the zinc amount and source
  • Provides a full 50 mg zinc serving
  • Very low cost per serving
  • Large customer rating base shows broad satisfaction

Cons

  • Zinc dose exceeds the cited adult daily upper limit
  • No copper amount is disclosed
  • Small calcium dose adds little practical value
  • Narrow formula offers limited support across broad wellness pathways
  • Higher zinc intake does not establish added benefit when zinc status is adequate

Warnings

  • A 50 mg zinc serving exceeds the cited adult daily upper limit of 40 mg and may cause stomach upset or nausea, particularly when taken without food.
  • Regular high-dose zinc without a disclosed copper amount may contribute to copper depletion; long-term daily use is better discussed with a qualified professional.

Product analysis

81 out of 100

Zinc Citrate 50 mg provides well-absorbed zinc that may help fill a dietary gap and support normal immune and skin functions.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality67

Zinc citrate has favorable absorption characteristics. The calcium form is identified, but its quality remains uncertain.

Ingredient Transparency100

Both nutrient amounts and forms are clearly identified. That helps distinguish the zinc serving from the accompanying calcium.

Value For Money80

The zinc comparison shows a low serving cost. Value for the calcium contribution remains uncertain.

Customer Satisfaction94

Customer ratings are very positive. The very large review base gives a broad picture of satisfaction, without establishing individual suitability.

Product Focus74

The clearest benefits involve meeting zinc needs for normal immune, skin and other functions. The 50 mg serving without copper raises a copper-depletion concern and does not establish extra benefit when zinc intake is adequate.

Format
Tablet
Container
60 Tablet(s)
Per serving
$0.05
Customer rating
4.8 · 53,326 ratings
Report analysis

Goals

Immunity
Impact
Highest effect
B Ingredient FitB+ PathwaysA+ EvidenceA Formulation Logic
Zinc · 50 mg

Zinc supports normal immune-cell function, particularly when intake is low. The swallowed form does not establish the cold-duration benefit studied with early, repeated zinc lozenges. This serving contains 50 mg without copper, which triggers the supplied concern about copper depletion; copper deficiency can impair immune cells.

How this product is rated for Immunity

Ingredient fit79

Zinc anchors the immune-related findings. Its declared amount supports a clear, limited contribution.
Goal fit
Immune-related ingredients sit within a broader formula, so a smaller share of its active ingredients is concentrated on this goal.
Dose adequacy
Zinc’s serving amount meets the saved amount comparison; this comparison does not identify an optimal clinical intake.

Pathways80

The strongest saved connection is to lymphocyte function and immune regulation. Coverage of the remaining processes is narrower.
Depth
The strongest saved connection is to lymphocyte function and immune regulation; the finding describes coverage of that process, not measured improvement in immunity.
Breadth
The saved findings extend to innate immune cell activity, lymphocyte function and immune regulation. Other processes have less coverage.

Evidence100

Zinc leads this finding. Nutrient roles and regular-use evidence remain distinct from proven infection prevention.
Evidence strength
Zinc leads the saved evidence finding, based on its bounded nutrient-function support.
Studied preparation
The counted preparations meet the saved preparation comparison; that finding does not establish superiority of their specific forms.

Formulation logic93

High zinc without copper raises a copper-depletion concern. Counted ingredients meet the minimum amount comparison.
Partner coverage
The counted ingredients work independently under the supplied findings and have no missing required partner; this does not establish synergy.
Conflicts
The 50 mg zinc serving without copper raises the supplied copper-depletion concern; the separate very-high-zinc condition does not apply.
Effective doses
All counted ingredients meet the saved minimum amount comparison; ingredients excluded for small or unresolved amounts are not made effective by this finding.
Study evidence
Zinc Supportive 73 studies
Everyday Health
Impact
High effect
A Ingredient FitD+ PathwaysB- EvidenceA Formulation Logic
Zinc · 50 mg

Zinc contributes to normal immune function and can help fill a dietary gap. The selected serving provides 50 mg, beyond the saved comparison endpoint; this does not establish greater benefit when zinc intake is adequate. The supplied findings flag high zinc without copper as a formulation concern. Calcium is present in a small amount and did not contribute to the saved result.

How this product is rated for Everyday Health

Ingredient fit93

Relevant nutrients contribute to the goal, with the extent depending on their amounts and the focus of the formula.
Goal fit
The relevant ingredients fit the goal, although the product is also associated with other uses.
Dose adequacy
The counted nutrient amounts reach the saved comparison endpoints; these endpoints do not establish added benefit above adequate intake.

Pathways52

Normal antioxidant and immune functions are the strongest represented area. The saved findings are concentrated in one functional area, giving limited breadth for a broad general-health goal.
Depth
Normal antioxidant and immune functions are the strongest represented area.
Breadth
The saved findings are concentrated in one functional area, giving limited breadth for a broad general-health goal.

Evidence72

Zinc leads the saved evidence finding; its role does not establish additional benefit when nutritional intake is adequate.
Evidence strength
Zinc leads the saved evidence finding; its role does not establish additional benefit when nutritional intake is adequate.
Studied preparation
The counted preparations match the saved preparation finding, without establishing superiority of their chemical forms or delivery method.

Formulation logic93

Zinc can contribute independently, but its high amount without copper triggers the supplied formulation concern.
Partner coverage
The counted ingredients can contribute independently or have their relevant partners; this does not establish an added combination benefit.
Conflicts
High zinc without copper is flagged as a formulation concern.
Effective doses
The counted ingredients reach the saved minimum amount comparison; this is not a proven clinical benefit threshold.
Study evidence
Zinc Supportive 60 studies
Testosterone Support
Impact
High effect
B Ingredient FitF PathwaysA EvidenceA Formulation Logic
Zinc · 50 mg

Zinc supports normal testosterone status when low intake or deficiency limits it. Correcting that nutritional gap differs from boosting testosterone in zinc-replete adults. The declared form does not establish superior hormone outcomes, and a higher serving amount does not establish additional benefit. The 50 mg of zinc per selected serving is flagged without copper.

How this product is rated for Testosterone Support

Ingredient fit79

The relevant ingredients form part of a broader formula serving other nutritional purposes. The recognized amounts reach the supplied comparison anchors; those anchors are not proven testosterone-treatment doses.
Goal fit
The relevant ingredients form part of a broader formula serving other nutritional purposes.
Dose adequacy
The recognized amounts reach the supplied comparison anchors; those anchors are not proven testosterone-treatment doses.

Pathways0

No direct coverage was assigned to the evaluated hormone mechanisms.
Depth
No direct coverage was assigned to the evaluated hormone mechanisms.
Breadth
No evaluated hormone mechanism reaches the comparison’s meaningful-coverage criterion.

Evidence93

Zinc supplies the strongest recognized evidence contribution, subject to its population and outcome limitations.
Evidence strength
Zinc supplies the strongest recognized evidence contribution, subject to its population and outcome limitations.
Studied preparation
The recognized forms meet the supplied preparation criteria, without proving routine testosterone enhancement.

Formulation logic93

The recognized ingredients have no missing required partners, but high zinc without copper is flagged.
Partner coverage
No missing required partner was identified among the recognized ingredients.
Conflicts
High zinc without copper is the identified formulation concern.
Effective doses
The recognized ingredients meet the comparison’s minimum amount criterion, which is distinct from a proven testosterone-treatment dose.
Study evidence
Zinc Disputed 7 studies
Hair Health
Impact
High effect
B Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Zinc · 50 mg

Zinc supports hair when low zinc intake or deficiency contributes to diffuse shedding. The 50 mg per serving received full amount recognition, but a larger amount does not establish greater regrowth in someone with adequate zinc intake. Zinc citrate does not establish a superior hair outcome over other zinc forms.

How this product is rated for Hair Health

Ingredient fit79

Zinc drives the recognized ingredient findings. The declared qualifying amounts reach the full saved reference levels.
Goal fit
The formula includes ingredients recognized for this goal alongside other actives, which makes its focus broader.
Dose adequacy
The recognized ingredients have declared amounts that reach the saved comparison’s full reference levels; these are not proven hair-treatment doses.

Pathways0

The findings concern nutrient sufficiency rather than the four specified hair pathways.
Depth
No contribution was recorded in the four specified hair pathways; nutrient sufficiency is treated separately.
Breadth
None of the specified pathways reached the coverage threshold used in the saved comparison.

Evidence98

Zinc leads the recognized evidence findings. Ingredient recognition does not establish a trial of this complete product.
Evidence strength
Zinc provides the leading recognized evidence contribution, subject to its specific population and outcome limitations.
Studied preparation
The saved findings recognize the qualifying ingredient forms; this does not establish that the complete product was tested for hair outcomes.

Formulation logic100

The recognized ingredients meet the saved amount threshold. No required partners or configured conflicts were identified.
Partner coverage
No required ingredient partner was missing among the recognized contributions; this does not imply added benefit from combining ingredients.
Conflicts
No configured ingredient conflict was identified in the supplied calculation.
Effective doses
All recognized contributions reached the saved amount threshold, which is a comparison criterion rather than a proven effective hair dose.
Study evidence
Zinc Supportive 22 studies
Skin Health
Impact
High effect
B Ingredient FitF PathwaysB+ EvidenceA+ Formulation Logic
Zinc · 50 mg

Zinc supports skin repair in deficiency, without established extra benefit in adequately nourished adults.

How this product is rated for Skin Health

Ingredient fit79

Ingredients relevant to skin health sit within a broader formula with other active ingredients. The relevant declared amounts fully meet or nearly meet the saved exposure comparison; this does not establish an optimal regimen.
Goal fit
Ingredients relevant to skin health sit within a broader formula with other active ingredients.
Dose adequacy
The relevant declared amounts fully meet or nearly meet the saved exposure comparison; this does not establish an optimal regimen.

Pathways0

No mapped pathway receives a contribution in the saved findings, although the ingredient findings remain separate.
Depth
No mapped pathway received a contribution in the saved findings, despite the separate ingredient findings.
Breadth
None of the mapped pathways meets the saved coverage threshold.

Evidence83

Zinc leads the saved evidence finding. Accepted preparation matches do not remove the ingredient-specific limitations described above.
Evidence strength
Zinc provides the leading evidence contribution in the saved comparison; its clinical limitations still apply.
Studied preparation
The saved finding accepts the preparations used for its included ingredients; it does not establish that every labelled preparation matches a clinical trial.

Formulation logic100

The saved checks find no missing required partner or configured conflict. The included amounts pass the minimum comparison screen.
Partner coverage
The included ingredients do not lack a required partner under the saved finding; this does not establish added benefit from combining them.
Conflicts
No configured ingredient conflict was triggered by the supplied facts.
Effective doses
All ingredients included in this amount screen meet its minimum comparison level; that level is not a proven effective dose.
Study evidence
Zinc Supportive 66 studies
Eye Health
Impact
High effect
B Ingredient FitC PathwaysB+ EvidenceA Formulation Logic
Zinc · 50 mg

Zinc has a role in normal visual function, but its supplied clinical support concerns defined combinations for selected people with age-related macular degeneration. That does not establish improved everyday vision from zinc alone. This serving supplies 50 mg without copper, raising a concern about zinc-induced copper deficiency.

How this product is rated for Eye Health

Ingredient fit79

Zinc provides the main contribution to the saved findings, with other ingredients serving broader purposes.
Goal fit
Zinc is the main relevant ingredient in the saved comparison.
Dose adequacy
The 50 mg zinc serving reaches the full comparison amount, without establishing extra vision benefit.

Pathways60

The recorded contribution is concentrated in the visual cycle.
Depth
Photoreceptor structure and the visual cycle are the strongest recorded area.
Breadth
Only the visual cycle is prominently covered; macular pigment, focusing, circulation and antioxidant defense have no recorded contribution.

Evidence84

Zinc leads the saved evidence comparison, but the supplied clinical context limits routine vision claims.
Evidence strength
Zinc leads the saved comparison; its clinical evidence concerns defined combinations and selected macular-degeneration populations.
Studied preparation
Zinc meets the saved preparation criteria; that does not establish routine visual-performance benefit.

Formulation logic93

Zinc reaches a meaningful amount, but the lack of copper raises a formulation concern.
Partner coverage
No required partner is missing under the saved rules; this does not establish a complete clinical eye-health regimen.
Conflicts
Zinc at 50 mg per serving without copper raises a concern about copper deficiency, which can harm the optic nerve.
Effective doses
Zinc reaches a meaningful amount in the saved comparison.
Study evidence
Zinc Supportive 39 studies

Ingredients

IngredientAmount per servingScore
Calcium (Dicalcium Phosphate)
46 mg
Zinc (Zinc Citrate)
50 mg 72
Gluten Free Adults 18–50 Vegan Vegetarian
Report overview
B+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyA+ Value
Each serving contains 50 mg of zinc as citrate, exceeding the adult daily upper limit before other sources are counted. The saved facts do not establish the amount of copper.
How this ingredient is rated

Active Ingredient Quality & Bioavailability80

The named zinc form is zinc citrate.
Zinc Form Bioavailability
The named zinc form is zinc citrate.

Dose, Safety & Label Transparency51

50 mg zinc per serving exceeds the adult daily upper limit before other sources; the copper amount is unknown.
Elemental Dose Transparency
The saved facts state 50 mg of elemental zinc per serving and identify the source as citrate.
Zinc Dosage Safety & Effectiveness
Each serving provides 50 mg zinc, which exceeds the adult daily upper limit before zinc from other sources is included.
Zinc-to-Copper Mineral Balance
The copper amount is unknown in the saved facts, so the zinc-to-copper balance cannot be assessed; unknown does not mean zero.

Value100

A whole-product serving costs about $0.05; the price is not allocated to zinc alone.
Price Per Serving Efficiency
A whole-product serving costs about $0.05; the price is not allocated to zinc alone.
Report alternatives

Sources

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

  1. 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 participantsEveryday Health forZinc
  2. 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 participantsEveryday Health forZinc
  3. 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 participantsEveryday Health forZinc
  4. 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 participantsEveryday Health forZinc
  5. 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 participantsEveryday Health forZinc
  6. Antioxidant vitamin and mineral supplements for age-related macular degeneration.
    Evans JR · The Cochrane database of systematic reviews · 2002
    Systematic review170 participants7 studies pooledEye Health forZinc
  7. 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 pooledEye Health forZinc
  8. Oral zinc in macular degeneration.
    Newsome DA; Swartz M; Leone NC; Elston RC; Miller E · Archives of ophthalmology (Chicago, Ill. : 1960) · 1988
    Randomized trial151 participantsEye Health forZinc
  9. 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 participantsEye Health forZinc
  10. 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 participantsEye Health forZinc
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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