N-A-G 500 mg®
Non-Nutrient / Non-BotanicalBrand: Source Naturals
Net Contents
120 Tablet(s)
Serving Size
1–3 Tablet(s)
Servings Per Container
Not specified
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
0 21078 00222 2
Product Version
SN0222 REV F151
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Contains
- Milk
- Egg
- Shellfish
- Wheat
- Soy
- Gluten
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1–3 Tablet(s) · 1 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| N-Acetyl Glucosamine | 500 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Use: 1 to 3 tablets daily.
Warnings & Precautions
Precautions re: Allergies
Contains shellfish (shrimp and crab).
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: If you are pregnant, may become pregnant, breastfeeding, or regularly taking any drug such as acetaminophen, warfarin (Coumadin), or heparin, consult your health care professional before using this product.
Precautions re: All Other
Do not use if either tamper-evident seal is broken or missing.
Precautions re: Children
Keep out of the reach of children.
Formulation
Formula re: Contains
N-acetyl glucosamine
Formula re: Contains
Contains shellfish (shrimp and crab).
Formulation re: Does NOT Contain
Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
FDA Statements
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Other Label Statements
General Statements: All Other Content
Connective tissue support
Brand IP Statement(s) re: (c), (TM), (SM)
N-A-G, N-acetyl glucosamine, is an amino sugar (the building blocks of mucopolysaccharides).
General Statements: All Other Content
It is formed from L-glutamine and glucose. N-A-G forms the basis of complex molecular structures which are key parts of the connective tissues and mucous membranes of the body - tendons, ligaments, cartilage, bone matrix, skin, joint fluid and intestinal lining.
General: Product/Version Code
SN0222 REV F151
Manufacturer & Distributor
Distributor
Source Naturals, Inc.
P. O. Box 2118, Santa Cruz, CA, 95062
Market Reference
N-A-G Source Naturals
iHerb4.8(215)$25.17Source Naturals NAG N-Acetyl Glucosamine 500 Mg Tablets
Instacart4.8(215)$15.69Source Naturals No-Flush Niacin
Walmart - Health Chest4.8(233)$9.99Source Naturals Essential Enzymes
Walmart - Health Chest4.8(2200)$13.29Source Naturals Mastic Gum Extract
Chinese Herbs Direct4.7(150)$23.31Source Naturals NR Nicotinamide Riboside 300 mg
PureFormulas.com5.0(1)$24.49CLEARANCE: Source Naturals NKO 500mg 60ct EXP 05/2026
Best Price Nutrition$10.00Niacinamide 500 mg Source Naturals
Chinese Herbs Direct4.4(5)$6.00
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
Health Nut Vitamin Inc
4.4 (174)Vitamin & supplements store
25150 Gratiot Ave, Roseville, MI 48066
The Vitamin Shoppe
4.4 (318)Vitamin & supplements store
31945 Gratiot Ave, Roseville, MI 48066
Trulife Vitamin Distribution
5.0 (1)Vitamin & supplements store
27633 Gratiot Ave, Roseville, MI 48066
Shores Nutrition
4.8 (49)Health food store
23225 9 Mack Dr, St Clair Shores, MI 48080
Natural Way Vitamins & Health Foods
4.9 (30)Health food store
31398 Harper Ave, St Clair Shores, MI 48082
Elite Megastore
4.2 (13)Vitamin & supplements store
34769 Dequindre Rd, Troy, MI 48083
GNC
3.9 (44)Vitamin & supplements store
26275 Hoover Rd, Warren, MI 48089
Dynamite Wholesale Nutrition
5.0 (51)Vitamin & supplements store
21819 John R Rd, Hazel Park, MI 48030
Research & Studies
Dietary Natural N-Acetyl-d-Glucosamine Prevents Bone Loss in Ovariectomized Rat Model of Postmenopausal Osteoporosis
Z Jiang, Z Li, W Zhang, Y Yang, B Han, W Liu, Y Peng - Molecules, 2018 - mdpi.com
… female health problem that increases morbidity, mortality, and … In the present study, natural NAG was prepared from … The IR spectrum of NAG (~0.5 mg) was acquired with a NEXUE …
201848 citationsEffects of silver nanoparticles on radish sprouts: root growth reduction and modifications in the nutritional value
N Zuverza-Mena, R Armendariz… - Frontiers in plant …, 2016 - frontiersin.org
… Seeds were germinated and grown for 5 days in nAg suspensions at 0, 125, 250, and 500 mg/L. Seed … conformation in radish sprouts, with unknown consequences for human health. …
2016308 citationsThe 5-minute herb and dietary supplement consult
A Fugh-Berman - 2003 - books.google.com
… She also is a medical advisor to the National Women's Health Network, a science-based, … A controlled trial in 10 healthy men found that L-arginine (500 mg/kg intravenously over 30 …
200363 citationsHerbs and natural supplements, volume 2: An evidence-based guide
L Braun, M Cohen - 2014 - books.google.com
… supplements, and informed advice from their healthcare practitioner is important and expected. I hope that this book will help expand your practice by unlocking the potential of natural …
2014569 citationsGanoderma lucidum (Reishi) an edible mushroom; a comprehensive and critical review of its nutritional, cosmeceutical, mycochemical, pharmacological, clinical, and …
R Ahmad, M Riaz, A Khan, A Aljamea… - Phytotherapy …, 2021 - Wiley Online Library
… with enormous health benefits, … of 500 mg thrice a day with optimal activity at 1800 mg thrice a day. This implicates a therapeutic index of 1.5–5.4 g/day, whereas a dose above 3000 mg …
2021243 citationsVarious promising biological effects of cranberry extract: A
RR Khalil, ET Mohammed, YF Mustafa - Clinical Schizophrenia & …, 2021 - academia.edu
… natural occurring product that has been used for centuries in traditional medicine to promote urinary tract health… Cranberry extract supplement, one capsule of 500 mg Cranberry powder …
202167 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-11-20. DSLD Label ID: 80975. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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