Zinc Citrate 50 mg by Nature's Harmony — Ingredients, Evidence & Safety

Product Label

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Safety Alerts

⚠️ Zinc: 50mg is 1.2× the Tolerable Upper Intake Level (40mg)

The safety score is low because the 50mg dose of zinc exceeds the recommended maximum daily limit of 40mg.

Label Data

1 Capsule(s) Serving Size

Mineral Product Type

100% Evidence Coverage

Supplement Facts — Evidence Check

Zinc

50 mg

⚠️ Exceeds Tolerable Upper Intake Level by 1.2× (UL: 40 mg) 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 50mg UL 40mg

Other Ingredients

Microcrystalline Cellulose Silicon Dioxide Magnesium Stearate Gelatin

Label Claims — Verification

❓ All Other

All Other (99% of products) Structure/Function (83% of products) Nutrient (61% of products) Approved Health (4% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Recommended Use: Helps to maintain immune function. Helps in connective tissue formation. Helps the body to metabolize proteins, fats and carbohydrates. Recommended Dose (Adults): Take 1 capsule daily with food. Take a few hours before or after taking medication.

⚠️ Warnings & Precautions

Risk Information: Zinc supplementation can cause a copper deficiency.

KEEP OUT OF REACH OF CHILDREN.

🧪 Formulation Notes

This product does not contain dairy, egg, gluten, shellfish, soy, sulfites, wheat, or artificial colours, flavours or preservatives.

Additional Information

STORE IN A COOL, DRY PLACE.

easy-to-swallow CAPSULES Helps to Maintain Immune Function

{Capsule} Actual Size

400578.01-04

SunOpta A healthy products company

A Proud Canadian Company

Product Details

UPC / SKU 0 63047 05425 2

DSLD Entry Date 2013-05-24

Product Type Mineral

Form Capsule

Brand Nature's Harmony

DSLD ID 21908

Data Updated 2026-04-11

Research Evidence

11 Research Sources

52 Avg Quality Score

7 Rct

4 Meta Analysis

B Citrate salts for preventing and treating calcium containing kidney stones in adults

Meta Analysis The Cochrane database of systematic reviews 2015

PubMed DOI

B Effect of potassium citrate on bone density, microarchitecture, and fracture risk in healthy older adults without osteoporosis: a randomized controlled trial

Rct The Journal of clinical endocrinology and metabolism 2013

PubMed DOI

B Regional Citrate Anticoagulation or Heparin Anticoagulation for Renal Replacement Therapy in Patients With Liver Failure: A Systematic Review and Meta-Analysis

Meta Analysis Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis 2023

PubMed DOI

B Effect of potassium citrate supplement on stone recurrence before or after lithotripsy: systematic review and meta-analysis

Meta Analysis Urolithiasis 2017

PubMed DOI

C Effect of Regional Citrate Anticoagulation vs Systemic Heparin Anticoagulation During Continuous Kidney Replacement Therapy on Dialysis Filter Life Span and Mortality Among Critically Ill Patients With Acute Kidney Injury: A Randomized Clinical Trial.

Rct JAMA

PubMed DOI

C Systematic review and meta-analysis: sodium picosulfate/magnesium citrate vs. polyethylene glycol for colonoscopy preparation

Meta Analysis European journal of clinical pharmacology 2016

PubMed DOI

C Potassium citrate prevents increased urine calcium excretion and bone resorption induced by a high sodium chloride diet

Rct The Journal of clinical endocrinology and metabolism 2002

PubMed

C Magnesium citrate supplementation decreased blood pressure and HbA1c in normomagnesemic subjects with metabolic syndrome: a 12-week, placebo-controlled, double-blinded pilot trial

Rct Magnesium research 2021

PubMed DOI

C The efficacy of vitamin D combined with clomiphene citrate in ovulation induction in overweight women with polycystic ovary syndrome: a double blind, randomized clinical trial.

Rct Endocrine

PubMed DOI

C Impact of Clomiphene Citrate on the Steroid Profile in Dysmetabolic Men with Low Testosterone Levels.

Rct Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme

PubMed DOI

View all evidence for Magnesium Citrate →