A 30-year-long medical study makes those claims.
Studies have linked red meat consumption to an increased risk for cardiovascular disease and cancers.
Researchers at Harvard analyzed 30 years of data with results showing people who ate one serving of red meat per day increased their risk of dying by 12 percent. But replacing that serving of red meat with a healthier protein option like fish, poultry or nuts cuts the risk of dying by as much as 20 percent.
Researchers at the Harvard School of Public Health analyzed nearly 30 years of data on more than 110,000 men and women.
Complete findings for this study are in the journal "Archives of Internal Medicine."