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There are 56 calories in a 1oz serving of homemade beef jerky. Calorie breakdown: 18% fat, 2% carbs, 80% protein.
An ounce of turkey jerky has 10 grams of protein but only about 60 calories, which makes the fat-free snack a good thing to stash in your desk or to eat on the go, says Ansel. Since protein is digested more slowly than fat or carbs, it keeps you feeling full longer. Mustard's a low-cal, high-flavor topper.