How many calories does a small piece of fish have?
                                
                                
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                                    3 min read                                
                            
                                According to the USDA, a 3.5-ounce serving of raw Atlantic cod contains just 82 calories. So, how many calories does a small piece of fish have? The exact number varies widely depending on the fish species, cooking method, and portion size, but most lean fish options are remarkably low in calories.