Tuna does in fact have a significant amount of omega 3 in it which means that it can prevent certain health problems such as cardiovascular disease and disorders like high blood pressure and arrhythmia. Because tuna has omega-3 fatty acids in it, you will find that eating significant amount on a regular basis can also decrease serum triglycerides which are fats that are found in the blood stream and help contribute to heart disease over time.

You will want to know that fresh tuna as opposed to canned tuna has the most omega 3 in it, so if you want to get all the nutrition possible from your tuna it will be necessary to eat it fresh. For every 100 grams fresh tuna has 1.504g of both EPA and DHA in it while canned tuna has a significantly less amount.