But it’s worth trying to eat less. In one study, researchers used computer models to see how less salt could affect teens’ health. One result showed that reducing salt consumption by as little as half a teaspoon a day could lower teens’ risk for high blood pressure by as much as sixty-three percent. And it could also help more teens avoid high blood pressure as they grow into adults. Health professionals have known for a while that reducing salt is good for heart health. And now food manufacturers are catching on. For example, Walmart announced that it’s going to reduce salt and sugar in many of its store branded foods, and urge its suppliers to make their foods more healthful, too.