How much protien is in 8oz of tuna? The surprising truth about fresh vs. canned
                                
                                
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                                    4 min read                                
                            
                                Did you know an 8oz portion of raw fresh yellowfin tuna can pack over 50 grams of protein? The precise amount of protien in 8oz of tuna varies significantly depending on its preparation, from fresh steaks to canned varieties, making a difference in your daily nutritional intake.