Eating fish supports high density lipoprotein or HDL. High HDL gives benefits to heart health. When person eats fish triglyceride levels generally drop. Triglyceride levels rise easily, especially after meals rich in carbohydrate (such as bread products and sugar). Elevated triglycerides are yet another independent risk factor for cardiovascular disease. High triglycerides raise the risk of heart attack or stroke even if a person’s cholesterol levels are normal. Life style significantly aggravate elevated high cholesterol and heart problems such as obesity, smoking etc.