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Zinc Citrate 50 mg

21st Century
4.8
★ ★ ★ ★ ★
(53326 ratings)
Zinc 50 mg
Product Image
Score78
Clear zinc citrate and low cost are paired with a 50 mg serving that is too high for routine use. No copper is included to support mineral balance.
How scoring works
Quantity:60 Tablet(s) • (60 servings)
Goals:
Immunity
General Health
Testosterone Support
Hair Health

Score 78

Clear zinc citrate and low cost are paired with a 50 mg serving that is too high for routine use. No copper is included to support mineral balance.
How scoring works
$3.00($0.05 per serving)
iHerb
$ 3.00
Amazon
$ 12.00
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Analysis

The tablet provides 50 mg of zinc citrate and a small amount of calcium from dicalcium phosphate. Citrate gives good form clarity, while calcium contributes little to the main zinc purpose.

A high zinc serving may have a place for a specific short-term need, but it is excessive for open-ended use. The formula is also too narrow to cover the many nutrients involved in skin, hair, vision, immunity, general health, and hormone support.

One tablet and very low cost make use simple. The absence of copper and the fixed 50 mg amount are more important purchasing considerations than price.

Who is it for
  • Adults using high-dose zinc briefly under guidance
  • Users who prefer zinc citrate
  • People seeking a low-cost one-tablet option
Best for
  • Limited-duration zinc citrate supplementation
  • Low-cost focused zinc
  • A simple tablet format

Pros

  • Uses zinc citrate
  • Clearly states the elemental amount
  • Provides a one-tablet serving
  • Offers very low serving cost

Cons

  • The 50 mg amount exceeds the usual adult upper intake level
  • No copper is included
  • Calcium adds little practical value
  • The fixed tablet limits dose flexibility

Warnings

  • The 50 mg amount may cause nausea or stomach irritation.
  • Long-term daily use may reduce copper absorption and contribute to copper deficiency.
  • Calcium and zinc can interfere with levothyroxine and some antibiotics; follow medicine-specific spacing instructions.

Nutrient quality

63 Moderate impact

Zinc citrate is a useful organic form with good absorption potential. The favorable form and low cost are offset by an excessive dose and lack of copper.

Ingredient transparency

88 Highest impact

The calcium and zinc amounts are stated clearly. No proprietary blend hides the listed active doses.

Customer satisfaction

74 High impact

The supplied average is very strong, with very large response volume. Complaint patterns and purpose-related experiences are not supplied.

Value for money

88 Highest impact

Formula quality generally supports the asking price despite some limitations. Each serving offers very good practical value for its useful active dose.

Report analysis

Goals

Immunity
Immunity
Impact
High effect
A Goal FitB- Strength of SupportD+ CoverageA Formula Quality
Zinc · 50 mg

Zinc citrate provides a well-absorbed form with a direct role in immune-cell function. The simple label makes the active amount easy to judge.

The serving exceeds the usual daily upper limit and contains no copper for mineral balance. Prolonged daily use may cause nausea or reduce copper absorption, so the amount is better suited to limited or supervised use.

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

Zinc citrate is a useful form of an essential mineral that supports immune readiness, antioxidant defenses, and many enzyme systems. The stated amount is excessive for routine unsupervised use despite zinc's strong general-health relevance.

The focused formula offers meaningful zinc depth but no copper or wider foundational coverage. Daily intake above the usual adult upper limit may cause nausea and can impair copper status over time, making short-term or supervised use more appropriate.

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

Zinc citrate can support testosterone synthesis when zinc status is low. The amount exceeds the usual daily upper limit and is unsuitable for unsupervised long-term use.

Citrate is a useful, clearly named zinc form. Prolonged use may cause nausea and copper depletion because no copper is included.

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

Zinc citrate can help correct zinc-related shedding and support normal follicle cell division. The amount is much higher than needed for routine maintenance.

Its form is favorable, but calcium adds little hair-specific value. Daily 50 mg zinc can cause nausea and copper depletion, so prolonged use warrants professional supervision.

Study evidence
Zinc Supportive 22 studies
Skin Health
Skin Health
Impact
Moderate effect
C- Goal FitD+ Strength of SupportF CoverageB+ Formula Quality
Zinc · 50 mg

Zinc citrate supports repair and selected acne-related needs, but a zinc-only tablet is not comprehensive skin support. The 50 mg amount exceeds the usual adult upper intake level.

Good form disclosure is offset by a dose poorly suited to unsupervised daily use. Prolonged intake can cause nausea and copper deficiency because no copper is included.

Study evidence
Zinc Supportive 66 studies
Vision Support
Vision Support
Impact
Moderate effect
D+ Goal FitC+ Strength of SupportF CoverageC- Formula Quality
Zinc · 50 mg

Zinc citrate supplies one established mineral used in vision-support frameworks, but it addresses only a narrow part of ocular nutrition. The citrate form is a practical strength and the amount is clearly disclosed.

The 50 mg serving exceeds the usual adult upper intake level and no copper is included. Long-term daily use may cause nausea and reduce copper absorption, so the formula is better suited to limited or supervised use.

Study evidence
Zinc Supportive 39 studies

Ingredients

IngredientAmount per serving
Calcium (Dicalcium Phosphate)
 46 mg
Zinc (Zinc Citrate)
 50 mg
Gluten Free Adults 18–50 Vegan Vegetarian
Report overview
Zinc (Zinc Citrate) · 50 mg OverallScore72
B Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyA+ Value

The 50 mg zinc serving exceeds the usual upper limit and is better suited to limited or supervised use. Zinc citrate offers a useful absorption profile, while the tablet shapes convenience and dissolution. The lack of copper at this high dose raises a practical risk of copper depletion and stomach upset with prolonged daily use.

View ingredientView products
Loading alternative details
87 Performance

Zinc Picolinate 22 mg

Solgar
The focused 22 mg zinc picolinate formula offers strong absorption and a more practical maintenance amount than the original's aggressive 50 mg zinc amount. Its clear single-active label also removes the uncertainty created by unnecessary or opaque additions.
87 Performance

Zinc Picolinate 25 mg

Thompson
A clearly disclosed 25 mg zinc picolinate dose is easier to use routinely than the original's aggressive 50 mg zinc amount. The simple formula combines favorable absorption with an amount below the usual adult upper limit.
86 Performance

L-OptiZinc 30 mg

NOW
L-OptiZinc monomethionine provides a specific, well-absorbed form that improves on the original's aggressive 50 mg zinc amount. The small copper addition offers some balance, although it may not fully offset sustained intake of 30 mg zinc.
84 Budget

Zinc Gluconate 30 mg

Swanson
Its lower recurring cost improves the value comparison, while 30 mg zinc gluconate reduces the dosing concern compared with the original's aggressive 50 mg zinc amount. The form and amount are clearly stated, though sustained use still calls for attention to copper intake.
85 Budget

Zinc 30 mg

Nature Made
Its lower recurring cost improves the value comparison, and the focused 30 mg zinc gluconate tablet avoids the extra or opaque ingredients in the original's aggressive 50 mg zinc amount. The amount remains substantial without reaching the common 50 mg excess seen in many originals.
85 Budget

Zinc Chelate 30 mg

Nature's Way
Its recurring cost remains among the lowest in the provided options, while 30 mg zinc bisglycinate provides a well-absorbed chelate with a simpler profile than the original's aggressive 50 mg zinc amount. No copper is included, so prolonged daily use still deserves caution.
85 Value

Chelated Zinc 30 mg

Swanson
TRAACS zinc glycinate supplies a specific 30 mg chelate with strong absorption potential, giving better quality for the cost than the original's aggressive 50 mg zinc amount. The capsule stays focused and economical, although it does not include copper.
86 Value

Chelated Zinc 30 mg

Carlson
A 30 mg zinc glycinate chelate combines favorable absorption and digestive tolerance with strong serving value compared with the original's aggressive 50 mg zinc amount. The long supply supports economical use, but ongoing intake may still reduce copper status.
83 Value

Zinc 30 mg

Nature's Life
Zinc picolinate plus copper offers a more complete mineral-balance approach for the cost than the original's aggressive 50 mg zinc amount. The copper addition is useful, although repeated copper entries make the exact total less clear than it should be.
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. Preventive zinc supplementation for children, and the effect of additional iron: a systematic review and meta-analysis.
    Mayo-Wilson E; Imdad A; Junior J; Dean S; Bhutta ZA · BMJ open · 2016
    Meta-analysis205,401 participants80 studies pooledGeneral Health forZinc
  3. Fortification of staple foods with zinc for improving zinc status and other health outcomes in the general population.
    Shah D; Sachdev HS; Gera T; De-Regil LM; Peña-Rosas JP · The Cochrane database of systematic reviews · 2016
    Meta-analysis709 participants8 studies pooledGeneral Health forZinc
  4. 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
  5. 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
  6. Zinc for infection prevention in children with sickle cell anemia: a randomized double-blind placebo-controlled trial.
    Namazzi R; Opoka R; Conroy AL; Datta D; Tagoola A; Bond C; Goings MJ; Ryu MS; Cusick SE; Krebs NF; Jang JH; Tu W; Ware RE; John CC · Blood advances · 2023
    Randomized trial252 participantsImmunity forZinc
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. Role of zinc in chronic telogen effluvium in serum and hair of patients with alopecia.
    Zufishan S; Haque Z; Nazar S; Afaq E; Aamir E; Rafique S · JPMA. The Journal of the Pakistan Medical Association · 2024
    Case-control study100 participantsHair Health forZinc
  13. 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
  14. 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
  15. Treatment response to antioxidants and zinc based on CFH and ARMS2 genetic risk allele number in the Age-Related Eye Disease Study.
    Awh CC; Hawken S; Zanke BW · Ophthalmology · 2015
    Randomized trial989 participantsVision Support forZinc
  16. 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
  17. 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
  18. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  36. 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
  37. 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
  38. 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