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Source Naturals N-A-G™ -- 250 mg - 30 Tablets
N-A-G™ (N-acetyl glucosamine) is an amino sugar (a building block of mucopolysaccharides). It is formed from L-glutamine and glucose. N-acetyl glucosamine forms the basis of complex molecular structures that are key parts of the connective tissues and mucous membranes of the body -- tendons ligaments cartilage bone matrix skin joint fluid and intestinal lining.