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Proteins (e.g. meat, soy):
build tissue
produce energy
transport oxygen
protect against infection
lack of protein reduces growth rate
Fats (e.g. oil):
most concentrated source of energy
control inflammation
control water loss through skin
deficiency causes unhealthy skin and dull coat
Carbohydrates (e.g. sugar, starch, fiber):
provide a source of energy
infulence how nutrients are absorbed
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