Dried meat is an excellent on-the-go product. It contains a very small amount of fats and sugars, but a hefty load of protein.
It is 100% meat from which all the water has been removed - 60g of jerky is nutritionally equivalent to a steak weighing 240g! The only downside to jerky is that it is easily over-acidifying, so you shouldn't overdo it. However, as a meat packed for travel, this product is brilliant.