10 Health Benefits of Tuna

1. Protein
   High protein content to help keep those muscles strong. It is also good for the blood, skin, hair and nails.
   
   
2. Stroke
   Tuna can help you avoid the risk of having a stroke. A recent study has shown that adults who include one to four servings of fish as a part of their regular diet had a 27 percent lower risk of having an ischemic stroke. Five or more servings of fish per week reduced the risk of stroke to 30 percent.
   
   
3. Blood Pressure
   Tuna has omega-3 fatty acid, which helps prevent high blood pressure. Studies have shown that foods, like tuna, that contain omega-3 fatty acids helped test subjects maintain healthy blood pressure. Those who have yet to develop high blood pressure experience an even stronger beneficial effect from omega-3 fatty acids.
   
   
4. Lower Triglycerides
   With just two servings of tuna a week, you can lower your triglyceride levels. Why is that a good thing? Triglyceride in the bloodstream indicates the amount of fat being carried. If you have a high level of triglyceride, you are probably also experiencing high levels of low-density lipoprotein (LDL), or "bad cholesterol," and low levels of high-density lipoproteins (HDL), or "good protein." To make things simple, you basically want more HDL and less LDL, and eating tuna to lower your triglyceride level is one way to accomplish this.
   
   
5. Good for the Heart
   A measure of heart rate function known as heart rate variability (HRV), can be increased by eating tuna. Again, the omega-3 fatty acids of tuna help improve cardiovascular health by increasing HRV. Omega-3 fatty acids also protect your heart from developing abnormal heart rhythms that can be fatal.
   
   
6. Heart Disease
   A moderate and healthy consumption of tuna can lower the risk of coronary heart disease. The fact that tuna can help improve the ratio of HDL to LDL in the body allows it ward off an increased risk of heart disease, especially when substituted for foods high in saturated fat and cholesterol content.
   
   
7.  Obesity
   Another benefit of the omega-3 fatty acid found in tuna is its ability to reduce the risk of obesity while improving the body's insulin response. Omega-3 fatty acid is able to stimulate a hormone called leptin, which helps the body's metabolism while regulating the body's weight and food intake. Tuna is also low on the glycemic index (GI) with a GI rating of 0, and is low in both calories and fat, making it a good food choice for those struggling with obesity.
   
   
8.  Immune System
   Tuna is a good source of selenium, an antioxidant that helps improve the body's immune system. The immune system is a vital part of the body that is integral for fighting off sickness, diseases and infections.
   
   
9.  B Vitamins
   The B vitamins present in tuna help to build and maintain red blood cells and increase energy. These water-soluble vitamins increase the rate of metabolism, strengthen the immune system and help keep the skin healthy.
   
   
10. Cancer
    Tuna, and other fatty fish, have been shown in studies to reduce the risk of breast cancer in test subjects who ate it regularly. Other studies have shown that fatty fish, like tuna, have helped reduce the risk of kidney cancer. 

When looking for a source of lean protein, tuna is an excellent choice. The fact that it is low in both fat and calories makes it an excellent substitute for dairy products and meats that have a higher fat content.

*Source: http://www.symptomfind.com