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There are 56 calories in a 1oz serving of homemade beef jerky. Calorie breakdown: 18% fat, 2% carbs, 80% protein.
According the the McDonaldâs website, the small version of the shake has 530 calories and 15 grams of fat. A medium has 660 calories and 19 grams of fat, while the large 22-ounce version has 820 calories and 23 grams of fat. Though it packs a caloric punch, the Shamrock Shake isnât the worst fast food offender.