Throughout history, animal products have been an important means to augment or bioconvert agricultural production to more-valuable food products. A reasonable question to ask is, “What unique nutritional value is provided by this source of food?” Are animal products simply convenient sources of protein and calories, or are there lessons that this dietary history can teach us in guiding the sciences of food and nutrition forward?

Nutrition as a science is moving beyond its previous successes in de…

Table 2—Examples of zoonutrient classes and dietary benefit

Table 3—Oligosaccharides from milk and the pathogenic microorganisms shown to be bound. From Kunz et al. (2000), Patton (2000), Komagome et al. (2002)

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