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A sulfated glycosaminoglycan extracted from animal cartilage.

Sourced from bovine, porcine, or shark cartilage. Species and slaughter method are usually undisclosed.

Insulin historically extracted from beef pancreas. Largely replaced worldwide by recombinant (rDNA) human insulin and analogues.

Bovine-derived; halal status depends on slaughter. Modern alternatives (recombinant) sidestep the question entirely.