Eating a lot of salt can contribute to high blood pressure, which is a major risk factor for cardiovascular disease. Reducing the salt in your food is a big part of any heart-healthy diet. High blood pressure is associated with hypertensive heart disease. High blood pressure brings on heart failure by causing left ventricular hypertrophy that results in less effective muscle relaxation between heart beats. This makes it difficult for the heart to fill with enough blood to supply the body’s organs.