Beef jerky isn't always an unhealthy snack, but when it comes to brands like Slim Jim, it's better off avoided. Plenty of people turn to jerky as a high protein snack, but you're doing yourself a disservice if you buy Slim Jim! It's full of high fructose corn syrup, which actually contributes to weight gain and diabetes (we're guessing that's not the main goal for people on a high protein diet). It also contains the caramel color that has induced tumor growth in rats.
To summarize, this is a product you shouldn't be putting in your mouth regularly. If you care about your health, spend a little extra money on some high-quality jerky (remember to check the ingredients) and you definitely won't regret it. Peanut butter, boiled eggs, and grilled chicken or turkey also make great high protein snacks.