What is the scope of nutrition?
Is the provision of nutreints to the animal or person. Looks at what enters the mouth. Discusses requirements, defeciences, excesses, and interactions
nutrition has become more complex over time. digestive effeciencies, urinary/gasesous losees, metabolic trafficking
Organ, cellular metablolism, sub cellular metabolism
nutrigenomics (picking certain foods depending on their genetics. will determine how you feed animals depending on how genes are expressed