🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

1 Capsule(s) Serving Size
30 Servings
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

500 mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 500mg

Other Ingredients

Modified Cellulose Rice Rice Extract Gum Arabic Sunflower Oil

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (84% of products) Nutrient (23% of products) Qualified Health (1% of products)

Target Groups

Adult (18 - 50 Years) No Allergies Gluten Free Dairy Free

Product Information

📋 Directions for Use

Suggested Usage: Take 1 capsule daily, with food. Best when taken as directed by a qualified healthcare professional.

⚠️ Warnings & Precautions

Warnings: Keep out of reach of children. Pregnant or lactating women, the chronically ill, elderly, individuals under the age of 18, those taking prescription medications (e.g., blood thinners) as well as those with a physician-diagnosed medical condition should consult with a physician, pharmacist, naturopath or other qualified healthcare professional prior to taking dietary supplements.

Pregnant or lactating women, the chronically ill, elderly, individuals under the age of 18, those taking prescription medications (e.g., blood thinners) as well as those with a physician-diagnosed medical condition should consult with a physician, pharmacist, naturopath or other qualified healthcare professional prior to taking dietary supplements.

Sealed for your protection. Do not use if seal is missing or broken.

This product is not manufactured with milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soy, sesame, or gluten. Produced in a third-party, audited and registered cGMP compliant facility that may process other products that contain these allergens or ingredients.

🧪 Formulation Notes

Supports Healthy Immune System Function

Formulated to Contain No Gluten No GMOs No Soy This product is not manufactured with milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soy, sesame, or gluten.

Additional Information

Best stored at controlled room temperature 20 degrees C to 25 degrees C (68 degrees F to 77 degrees F). Improper storage conditions, such as extended exposure to direct sunlight, high heat & humidity can cause product degradation over time.

All California Gold Nutrition products come with a 100% GOLD Guarantee. If you are not completely satisfied with your purchase, return the unused portion within 90 days for a full refund.

Product Details

UPC / SKU 8 98220 01845 1
DSLD Entry Date 2023-12-14
Product Type Non-Nutrient/Non-Botanical
Form Capsule
DSLD ID 299678
Data Updated 2026-04-11

Research Evidence

184 Research Sources
55 Avg Quality Score
91 Systematic Review
75 Meta Analysis
7 Rct
7 Clinical Trial
2 Cochrane Review
1 Openfda Safety
B Treatment of gouty arthritis with traditional Chinese medicine decoction: Meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2024
B Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2017
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013
B Clinical efficacy evaluation and potential mechanism prediction on Guizhi-Shaoyao-Zhimu decoction in the treatment of gouty arthritis based on meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2023
B A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
Systematic Review International journal of molecular sciences 2024
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews
B The effects of quercetin supplementation on lipid profiles and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2020
View all evidence for Quercetin →

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