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(1) Collagen can be used as healthy foods; It can prevent cardiovascular disease;
(2) Collagen can serve as a calcium food;
(3) Collagen can be used as food additives;
(4) Collagen can be widely used in frozen food, beverages, dairy products, candy, cakes and so on;
(5) Collagen can be used for special populations (Menopausal women);
(6) Collagen can be used as food packaging materials