N-Acetyl Glucosamine

Description

N-Acetyl Glucosamine (NAG) is a naturally occurring amino sugar that serves as a fundamental building block for various complex molecules in the body. Unlike Glucosamine Sulfate or Glucosamine HCl, NAG is absorbed directly and is a direct precursor to hyaluronic acid, which is crucial for maintaining moisture and lubrication throughout the body, particularly in joints and skin. It plays a vital role in the synthesis of glycosaminoglycans and proteoglycans, essential components of cartilage and connective tissues. NAG supports the health and integrity of cartilage, contributing to joint comfort and mobility. Beyond joint health, it is recognized for its benefits to skin by promoting hydration and elasticity, and it also supports the integrity of the gastrointestinal lining. This makes it a popular ingredient in supplements aimed at supporting various aspects of connective tissue health and overall well-being. Its unique structure allows it to be readily utilized by the body to synthesize important structural molecules, distinguishing it from other forms of glucosamine. As a non-nutrient, non-botanical ingredient, it provides targeted support for cellular processes related to tissue repair and maintenance.

Sources
Chitin (exoskeletons of shellfish like shrimp, crab, and lobster)Fungi
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Optimal Dosage
Minimum500 mg
Maximum1500 mg
Safety & Toxicity
Toxicity Threshold5000 mg
Toxicity EffectStomach upset, diarrhea
Goals
Digestive Health
Digestive Health
Impact
High effect
Typical dose:1000–2000 mg
N-Acetyl Glucosamine (NAG) is a precursor to glycosaminoglycans, which are essential components of the gut's mucosal lining. A robust mucus layer protects intestinal cells from damage. NAG also has anti-inflammatory properties beneficial for calming an irritated gut lining.
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Joint Health
Joint Health
Impact
High effect
Typical dose:750–1500 mg
As a direct precursor to hyaluronic acid, N-Acetyl Glucosamine (NAG) is more readily incorporated into synovial fluid and cartilage than other forms of glucosamine. It supports joint lubrication and the integrity of the cartilage matrix, helping to reduce stiffness and improve comfort.
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Skin Health
Skin Health
Impact
High effect
Typical dose:500–1000 mg
As a direct precursor to hyaluronic acid (HA), N-Acetyl Glucosamine promotes the body's natural production of this powerful humectant, improving skin moisture, elasticity, and firmness. It has also been shown to inhibit tyrosinase activity, the enzyme responsible for melanin production, which can help reduce hyperpigmentation and even out skin tone.
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Anti-Inflammatory Support
Anti-Inflammatory Support
Impact
Situational effect
Typical dose:750–1500 mg
N-Acetyl Glucosamine (NAG) serves as a building block for the protective mucous layer in the intestines and for cartilage in joints. By supporting tissue integrity and modulating local inflammatory responses in these specific areas, it provides situational relief for conditions like inflammatory bowel disease and osteoarthritis. Its systemic effects are less pronounced than foundational supplements.
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Price per product
Average$34.90
Median$31.92
Price per serving
Average$1.20
Median$1.06
Price distribution
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Paired ingredients