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Extra Strength Glucosamine & Chondroitin

product on market Tablet or Pill NOW Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 40% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Glucosamine and chondroitin sulfate are commonly used to support joint health and cartilage maintenance. Clinical evidence for their efficacy in reducing joint pain is generally considered moderate to limited. These ingredients are typically well-tolerated with a high safety profile for most users.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Extra Strength Glucosamine & Chondroitin
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Tablet(s)
Serving Size
60
Servings
Non-Nutrient/Non-Botanical
Product Type
40%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
10 {Calories}
Total Carbohydrates
2 Gram(s) (1% DV)
Sodium
110 mg (5% DV)
1.5 Gram(s)
Market median: 1000.0mg (1115 products) 24 studies (A:0, B:9)
Market median: 600.0mg (79 products) 25 studies (A:0, B:6)

Other Ingredients

Cellulose Stearic Acid Magnesium Stearate Silica Vegetarian Coating
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Due to the size of tablet, take with 8 oz. of water or other beverage.

Suggested Usage: Take 2 tablets daily.

Warnings & Precautions

Caution: Persons with a known allergy to shellfish should not use this product.

For adults only.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Do Not Eat Freshness Packet. Keep in Bottle.

Contains shellfish (crab, shrimp, lobster, crayfish).

Not manufactured with wheat, gluten, soy, corn, milk, egg, fish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Formulation Notes

Chondroitin Sulfate is a glycosaminoglycan that has been combined with Glucosamine in this product for the support of proper joint mobility and comfort.*

This extra strength product has twice the Glucosamine/Chondroitin (750 mg/600 mg per tablet) as in our regular strength product (375 mg/300 mg per capsule).

Contains shellfish (crab, shrimp, lobster, crayfish).

Not manufactured with wheat, gluten, soy, corn, milk, egg, fish or tree nut ingredients.

Additional Information

Glucosamine is an essential building block for the formation of glycosaminoglycans (GAGs) and proteoglycans, the main components of cartilage tissue.*

Natural color variation may occur in this product.

CODE 3243 V4

TABLET SIZE

Joint Health*

~ Sulfate Forms ~ Joint Mobility and Comfort*

Non-GMO

General Health

Family owned since 1968.

NOW Foods developed the glucosamine test method chosen as the official AOACI industry standard method.

Store in a cool, dry place after opening.

Please Recycle.

GMP QUALITY ASSURED

Metadata

Product Details

UPC / SKU7 33739 03243 0
DSLD Entry Date2016-03-24
Product TypeNon-Nutrient/Non-Botanical
FormTablet or Pill
BrandNOW
DSLD ID57307
Data Updated2026-04-11
Research

Research Evidence

39
Research Sources
50
Avg Quality
20
Rct
9
Meta Analysis
4
Clinical Trial
3
Systematic Review
1
Regulatory Source
1
Openfda Safety
B Interventions for the management of temporomandibular joint osteoarthritis
Systematic Review The Cochrane database of systematic reviews 2012 PubMed DOI
B Glucosamine therapy for treating osteoarthritis
Meta Analysis The Cochrane database of systematic reviews 2005 PubMed
B Chondroitin for osteoarthritis
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
B Efficacy and safety of the combination of glucosamine and chondroitin for knee osteoarthritis: a systematic review and meta-analysis
Meta Analysis Archives of orthopaedic and trauma surgery 2023 PubMed DOI
B Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis
Rct The New England journal of medicine 2006 PubMed
B Oral Glucosamine in the Treatment of Temporomandibular Joint Osteoarthritis: A Systematic Review
Systematic Review International journal of molecular sciences 2023 PubMed DOI
B Scientific Opinion on glucosamine and joint health
Regulatory Source EFSA Journal 2009 DOI
B Clinical Efficacy and Safety of Chondroitin Combined with Glucosamine in the Treatment of Knee Osteoarthritis: A Systematic Review and Meta-Analysis
Meta Analysis Computational and mathematical methods in medicine 2022 PubMed DOI
B Combined chondroitin sulfate and glucosamine for painful knee osteoarthritis: a multicentre, randomised, double-blind, non-inferiority trial versus celecoxib
Rct Annals of the rheumatic diseases 2016 PubMed DOI
B Effectiveness and safety of glucosamine and chondroitin for the treatment of osteoarthritis: a meta-analysis of randomized controlled trials
Meta Analysis Journal of orthopaedic surgery and research 2018 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.