Source Naturals N-Acetyl Glucosamine NAG (250 mg) - 60 tablets

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NAG, N-acetyl glucosamine, is an amino sugar (a building block of mucopolysaccharides). 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. 

Suggested Use: 2 tablets 1 to 3 times daily.

Serving Size: 2 tablets

Ingredients (per 2 tablets):
N-Actetyl Glucosamine (NAG) - 500 mg
Calcium - 68 mg

Other Ingredients: dibasic calcium phosphate, stearic acid, microcrystalline cellulose, modified cellulose gum, silica, and magnesium stearate.

Warning: If you are pregnant, may become pregnant, or breastfeeding, or regularly taking any drug such as acetaminophen, warfarin (Coumadin(R)), or heparin, consult your health care professional before taking this product.

Allergies: Contains shellfish (shrimp, lobster, and crab).
Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.


N-Acetyl Glucosamine (NAG) is wonderful for healing the mucosal lining and intestinal wall. If you’re already taking MucosaHeal, you don’t need to take NAG, because MucosaHeal already contains NAG – unless you want to supplement at a higher dose.

I did know a naturopathic doctor who swore by NAG and used it as one of the principle supplements to help his patients wean off steroids.