Zinc Defender by ZHOU — Ingredients, Evidence & Safety

Product Label

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Label Data

1 Capsule(s) Serving Size

60 Servings

Single Vitamin and Mineral Product Type

50% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin B6

20 mg (1176% DV)

📊 15.4× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)

RDA 1.3mg This product: 20mg UL 100mg

Olive leaf extract

30 mg (273% DV)

📊 Market median: 500.0mg (115 products)

Median 500.0mg This product: 30mg

Other Ingredients

Whole Rice Concentrate Vegetable Cellulose Croscarmellose Sodium Kelp Magnesium Stearate

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (84% of products) Nutrient (48% of products)

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Suggested Use: Take one (1) capsule daily. Use only as directed.

⚠️ Warnings & Precautions

Caution: Do not exceed recommended dose.

Consult a physician before using this or any other supplement, especially pregnant or nursing mothers, children under 18, and individuals with a known medical condition.

Consult a physician before using this or any other supplement, especially pregnant or nursing mothers, children under 18, and individuals with a known medical condition. Keep out of reach of children.

Do not use if safety seal is damaged or missing.

🧪 Formulation Notes

Easy-to-absorb Zinc

For seasonal immune support

Immune support

V Vegan

With zinc monomethionine

Gluten free Made with Non-GMO Ingredients

Additional Information

Greatness by Nature

Store in a cool, dry place.

V Vegan

Lab Verified Made in the USA with Global Ingredients Made with Non-GMO Ingredients

#howizhou Facebook Instagram

Product Details

UPC / SKU 6 69191 64061 9

DSLD Entry Date 2021-08-23

Product Type Single Vitamin and Mineral

Form Capsule

Brand ZHOU

DSLD ID 250057

Data Updated 2026-04-11

Research Evidence

397 Research Sources

55 Avg Quality Score

200 Meta Analysis

68 Rct

58 Systematic Review

53 Clinical Trial

9 Cochrane Review

2 Narrative Review

2 Regulatory Source

1 Observational

1 Other

1 Openfda Safety

A Zinc supplementation for improving pregnancy and infant outcome

Meta Analysis The Cochrane database of systematic reviews 2021

PubMed DOI Cochrane

A Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years

Narrative Review The Cochrane database of systematic reviews 2023

PubMed DOI Cochrane

A Oral zinc for treating diarrhoea in children

Meta Analysis The Cochrane database of systematic reviews 2016

PubMed DOI

A Zinc supplements for preventing otitis media

Meta Analysis The Cochrane database of systematic reviews 2014

PubMed DOI Cochrane

A Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials

Meta Analysis BMJ open 2021

PubMed DOI

A Zinc supplements for preventing otitis media

Meta Analysis The Cochrane database of systematic reviews 2010

PubMed DOI Cochrane

A Zinc supplements for preventing otitis media

Meta Analysis The Cochrane database of systematic reviews 2012

PubMed DOI Cochrane

A Compression bandages or stockings versus no compression for treating venous leg ulcers

Meta Analysis The Cochrane database of systematic reviews 2021

PubMed DOI

A Zinc supplementation for mental and motor development in children