There is a protein bar called a Zero Pumpkin Supreme Protein Bar. It has almond butter, pumpkin, sweet potatoes and chocolate. Its decent tasting, but has some ingredients which upset my stomach a bit, plus its processed. I was thinking of making my own. Can you make a protein bar that doesn't need to be refrigerated, out of sweet potatoes, pumpkin, almond butter and chocolate? Perhaps using eggs instead of Whey Protein?
I'd say forget the protein bars and find a replacement.
My suggestion would be jerky.
Here's a great video on how to make jerky using just a regular fan, no heat. Very traditional and very tasty. The way you marinate the meat is up to you.
Protein bars are pretty easy to make with any number of paleo-based ingredients, but they are a processed food, fwiw. Refrigeration necessity will depend on how much moisture is left in the final product. Foods on store shelves are often devoid of moisture - think crackers, dried fruits, cereals, chips, etc. Pumpkin may be problematic in this regard, depending on how long you wish to store them. Fat also helps to extend shelf-life, but it might also promote rancidity, depending on the type of fat used. Coconut butter may be better than nuts high in PUFAs for storage purposes.
The home-made one would taste delicious.
If you bake them thoroughly, they might keep pretty well at room temp just as cookies/muffins do but, if not cooked, they would be MORE in need of refrigeration. The commercial bar probably includes additives to improve shelf life.
Grill chicken breasts...
if you grab one in the morning out of the fridge they will last all day without getting nasty while youre at work. :] i used to snack on chicken breasts in high school. id cut them into little strips and munch while i was in class.