🟢 80/100

This product is generally safe

  • Krebs Cycle 30% Zinc Complex: 100mg is 2.5× the Tolerable Upper Intake Level (40mg)
  • 100% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Krebs Cycle 30% Zinc Complex: 100mg is 2.5× the Tolerable Upper Intake Level (40mg)

Label Data

1 Capsule(s) Serving Size
60 Servings
Other Combinations Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

30 mg (273% DV)
✅ 2.7× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 30mg UL 40mg
⚠️ Exceeds Tolerable Upper Intake Level by 2.5× (UL: 40 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 100mg UL 40mg

Other Ingredients

Microcrystalline Cellulose Vegetable Cellulose Capsule Stearic Acid Vegetable Magnesium Stearate Silica

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take one (1) capsule daily or as directed by a health professional.

⚠️ Warnings & Precautions

If you are pregnant, planning to become pregnant, breast feeding, taking any prescription medications and/or have a medical condition, consult your physician or healthcare professional before taking this product.

Do not exceed recommended dosage.

Keep out of reach of children.

🧪 Formulation Notes

The Krebs cycle generates energy in every cell. Zinc bound to the five organic acids that drive the cycle is thought to be highly bioavailable because the acids are needed to support energy production and life itself.

Critical Cellular Care Essential to growth, reproduction, immunity, and skeletal health

Zn

Gluten free Non-GMO Soy free

No Proprietary Blends

Made in the USA since 1992 with worldwide ingredients

Additional Information

Store in a cool dry place.

Look What's Inside

Full Disclosure Labeling

2 HDPE

Product Details

UPC / SKU 0 74306 80025 1
DSLD Entry Date 2021-10-22
Product Type Other Combinations
Form Capsule
DSLD ID 255642
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
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
A Oral zinc for treating diarrhoea in children
Meta Analysis The Cochrane database of systematic reviews 2016
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2014
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
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2010
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2012
A Compression bandages or stockings versus no compression for treating venous leg ulcers
Meta Analysis The Cochrane database of systematic reviews 2021
A Zinc supplementation for mental and motor development in children
Meta Analysis The Cochrane database of systematic reviews 2012
A Zinc for the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
View all evidence for Zinc →

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