StarKist Chunk Light Tuna in Water. Natural source of Omega-3. Ingredients: Light Tuna, Water, Vegetable broth, Salt. Contains fish and soybeans. Great for making tuna pasta sauce. Net Wt: 5oz (142g). Supportive but conclusive research shows that consumption of EPA and DHA OMEGA-3 fatty acid may reduce the risk of coronary heart disease. One serving of Light Tuna in water provides 0.13 grams of EPA and DHA OMEGA-3 fatty acids. Meets American Heart Association food criteria for saturated fat and cholesterol for healthy people over 2. While many factors affect heart disease, diets low in saturated fat and cholesterol may reduce the risk of the disease.