It’s almost the Fourth of July, and chances are you’re about to face the toughest choice of your summer: hot dog or hamburger? If you’re thinking “Both!” you’re in good company. But if you’re trying to make healthier choices this holiday, “both” probably shouldn’t be your response. Consider what a registered dietitian says about this age-old American debate. The Hot Dog Hot dogs typically have about 150 calories. Add a bun and some condiments, and you quickly hit about 300 calories — still a very reasonable amount of calories for a dinner entree. Their smaller size gives them a caloric advantage over the hamburger, but there are some disadvantages to hot dogs. Hot dogs have about 5 grams of saturated fat, which is pretty high for what you’re getting. They’re also packed with sodium (about 500 mg in contrast to 375 mg a burger might have) and sodium nitrites or nitrates, which may…