Glucosamine Sulfate
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 50% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
2 Tablet(s)
Serving Size
80
Servings
Non-Nutrient/Non-Botanical
Product Type
50%
Evidence Coverage
Supplement Facts — Evidence Check
Total Carbohydrates
1 Gram(s)
(1% DV)
1.11 Gram(s)
📊 Market median: 1000.0mg (1115 products)
📚 22 studies (Tier A: 0, B: 9)
Other Ingredients
Maltodextrin
Cellulose
Stearic Acid
Hypromellose
Silica
Glycerin
Label Claims — Verification
❓
All Other
❓
Structure/Function
All Other (100% of products)
Structure/Function (89% of products)
Nutrient (16% of products)
Target Groups
Adult (18 - 50 Years)
Product Information
📋 Directions for Use
Recommendation: Take 2 tablets twice daily.
⚠️ Warnings & Precautions
Keep out of reach of children.
Safety sealed with printed inner seal. Do not use if seal is broken or missing.
If pregnant, nursing, or taking any medications, consult a healthcare professional before use.
Contains shellfish (shrimp, crab and lobster).
🧪 Formulation Notes
Researched Potency: Glucosamine supports healthy joints.
Sodium-Free: Ideal for individuals concerned about high blood pressure.
Sodium free
Contains shellfish (shrimp, crab and lobster).
Additional Information
Value Size
LN14410.A03 BLK8293A
Since 1969
Product Details
UPC / SKU
0 33674 14410 7
DSLD Entry Date
2019-02-25
Product Type
Non-Nutrient/Non-Botanical
Form
Tablet or Pill
Brand
Nature's Way FlexMax
DSLD ID
199945
Data Updated
2026-04-11
Research Evidence
39
Research Sources
50
Avg Quality Score
20
Rct
9
Meta Analysis
4
Clinical Trial
3
Systematic Review
1
Regulatory Source
1
Openfda Safety
B
Efficacy and safety of the combination of glucosamine and chondroitin for knee osteoarthritis: a systematic review and meta-analysis
B
Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis
B
Oral Glucosamine in the Treatment of Temporomandibular Joint Osteoarthritis: A Systematic Review
B
Scientific Opinion on glucosamine and joint health
B
Clinical Efficacy and Safety of Chondroitin Combined with Glucosamine in the Treatment of Knee Osteoarthritis: A Systematic Review and Meta-Analysis
B
Combined chondroitin sulfate and glucosamine for painful knee osteoarthritis: a multicentre, randomised, double-blind, non-inferiority trial versus celecoxib
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