|MadSci Network: Biochemistry|
I am afraid that the answer to this question depends on the type of meat and the cut of steak in question. According to the Joy of Cooking cookbook by Irma Rombauer and Marion Becker, a 4-ounce cut of filet mignon will contain 63 grams of protein, and a 3-ounce sirloin steak with a lean to average fat content will contain 20-26 grams of protein. For pork, a 3-ounce ham steak with a medium fat content will contain 26.3 grams of protein, and for fish, a 3-ounce salmon steak will contain 29.7 grams of protein, while an equivalently sized (3" x 0.5" x 1") halibut steak will contain 18.4 grams of protein.
Adjusting these figures from the 3-4 ounce serving size to a whopping 10 ounces, you can see that this number will vary significantly, from almost 160 grams for filet mignon, to 100 grams for salmon, to 70-90 grams for sirloin and ham, down to about 60 grams for halibut (assuming that the halibut steak I described above weighs 3 ounces). Given that most people only need to consume between 40-70 grams of protein per day (depending on body mass), 10 ounces of any steak seems a bit excessive.
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