Plant-based companies are developing vegan hot dogs to satisfy all tastes. Vegan hot dogs allow you to avoid all the terrible things about processed meat, while still delivering great flavor and loads of protein. If you've given up meat for health, environmental, or humane reasons, you can still enjoy a sizzling hot dog. Some brands contain dairy products or eggs. When buying meatless hot dogs, vegans should always check the product label. Lightlife's veggie … To score 14 grams of protein, plus 12 percent of your daily iron needs, combine two dogs in a meal, recommends Macfarlane.