(CNN) Fasting. Time-restricted eating. Eating for five days, then fasting for two. Lately it appears everyone is interested in some sort of calorie-restricted diet to better their chances for a longer life with fewer chronic diseases.

But what if you could get the same longevity benefits without having to eat less?

New research shows limiting protein-rich foods that naturally contain high levels of sulfur amino acids, such as meats, dairy, nuts and soy, may reduce the risk for cardiovascular disease. If future research bears that out, it may be another stepping stone to better health and longer life.

"For decades it has been understood that diets restricting sulfur amino acids were beneficial for longevity in animals," said John Richie, a professor of public health sciences at Penn State College of Medicine in a statement.

"This study provides the first epidemiologic evidence that excessive dietary intake of sulfur amino acids may be related to chronic disease outcomes in humans," Richie added.