Blue Diamond Whole Natural Almonds (1.5-oz pack)
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This is going to be the best nut find at the gas station. What sets it apart is the serving size – 1.5 oz means it's only 50 percent bigger than an actual serving of almonds, making it harder to overindulge. The single-serving sleeves cap calories at 250, while giving you 5 g of fiber and 9 g of protein.

Sugar content: 2 g
Fat: All from almonds
Other: No extra ingredients, just almonds. And the sodium content? Zilch. Other dry roasted whole nuts are also a great choice.

Where to get it: Gas station, grocery store.