9. Beef Jerky
Most leading jerky’s contain monosodium glutamate (MSG) and sodium nitrate-both know for their carcinogenic effects when ingested, according to nutritionist Stella Metsovas. A 1-ounce serving can yield upward of 700 mg of sodium, making jerky an absolute no-no for people who suffer from high blood pressure or cardiac issues. Jerky contains protein, but with so many preservatives, it doesn’t have many of the antioxidants and fiber that you’d expect.