What is the lowest calorie tuna? Unpacking your nutrition diet
                                
                                
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                                    2 min read                                
                            
                                A 3-ounce serving of canned light tuna packed in water contains roughly 73 calories, significantly less than its oil-packed counterpart. This notable difference makes understanding **what is the lowest calorie tuna** a key part of any nutrition diet focused on managing caloric intake.