Looking at 100g chicken breast for example, I see that ~30g is protein and ~4 is fat. What is the rest of the 100g piece made of? Is that all connective tissues? Fiber? Something else?
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1connective tissues are mostly protein.– user2617804Commented Sep 19, 2017 at 4:36
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2It depends, we recently discovered in Brazil that some of the meat is actually cardboard, rotten meat from unknown animals, etc.– Red BananaCommented Sep 20, 2017 at 1:21
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Water is in there, too.– AlchimistaCommented Dec 1, 2017 at 12:15
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1 Answer
It's essentially just water.
You can directly see this in the full USDA nutrition facts (link is for "Chicken, broilers or fryers, breast, meat only, cooked, roasted"). Per 100g, there is 65.26g of water, 31.02g protein, 3.57g fat, accounting for 99.85g. The rest is probably just trace nutrients and rounding errors.
You'll see the same kind of thing for other meats. Details vary by cut, but for example here's beef chuck eye steak (64.48g water, 18.86g protein, 16.35g fat), pork loin chops (69.7g water, 20.71g protein, 9.03g fat), and Atlantic salmon (64.89g water, 20.42g protein, 13.42g fat).
answered Sep 18, 2017 at 17:41
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29"trace nutrients and rounding errors" 🤣🤣🤣🤣🤣 You just made my day.– bwDracoCommented Sep 18, 2017 at 20:45
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9FWIW, 65% water by weight is about the same as humans (this Wikipedia page has 65% average in one study; 50% or 60% (female/male) in another). Commented Sep 19, 2017 at 0:15
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6@Mehrdad Depends very much on the type/cut. You can get ground beef anywhere 5% to 30% fairly easily. Added a few, but I think the point here is more that however much fat/protein there is, the remainder is pretty much just water.– Cascabel ♦Commented Sep 19, 2017 at 21:47