When I pick up a packaged meat product at the store, like bacon or sandwich meats or ham steaks, I often see the label says 85% protein or something similar. Are not meat products all protein?
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Because muscle tissue isn’t made purely out of protein.
It’s like asking “why aren’t houses 100% brick”. They aren’t because there’s also mortar, steel, wood, glass, plastic.
Animal tissue also contains fat, vitamins, minerals, water, etc.
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