Actually, not even that. It turns out that nutrition science, like global warming, has been hijacked by social and political forces, and much of what we've all been told is wrong.
Eating fat will not cause heart disease, nor will the calories. The carbohydrates in the tortilla will, but they aren't excessive in a single corn tortilla. A Jack In The Box taco is one of the healthiest things on their menu.
See: What if It's All Been a Big Fat Lie for starters.
Gram wise, Oil is one of the most calorie rich foods you can eat, that is why you can reduce the calories in chicken by baking it instead of frying it.
Bake vs Fry, look it up, not talking about anything but calories, if you bring up things I don’t post, I will not reply.