Whether Burger King’s Impossible Whopper or White Castle’s Impossible Slider, most of the meatless options aren’t healthy ones.
The challenge here is that these offerings aren’t actually any healthier. The Impossible Whopper, for instance, not only has comparable caloric and fat levels as its meat-based counterpart, but it has more salt per serving; the Del Taco options are comparable. The Impossible Slider has more calories, more fat and more sodium than the meaty original (before you add cheese to either).
In fact, when you start to compare all of these offerings to their meat-based counterparts, you realize it’s the same story no matter what brands you’re talking about — you might possibly save a few calories or carbs, but you’ll probably get way more salt.