Utilization of byproducts and waste materials from meat ...
2011-2-20u2002·u2002After drying and defatting, the glands or extracts are milled into a powder and made into capsules, or used in a liquid form. They are tested for safety and potency before they are sold. Brains, nervous systems and spinal cords are a source of cholesterol which is the raw material for the synthesis of vitamin D3.
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