You didn't go down 7 pounds because you were restricted to soft foods and then later cold foods.
You lost 7 pounds because you are eating overall less calories than you were prior to losing weight.
It's the same thing with intermittent fasting. People think it's some special thing because they are eating only during a period of 6 hours a day instead of over the whole day when they are awake. It really has nothing to do with that. It's just that you are eating less in those 6 hours than you would over the whole day of being awake.
Again, this is not ****ing rocket science. It's a tried and true formula that has been the same for centuries.
And "diet" isn't a special thing you do. All "diet" means is what you are currently eating.
The problem with a lot of Americans is that they think "diet" is a temporary thing you do just to lose weight and then go back to eating like you were before. Sure you can do that, but you will also put on the weight like before. Having a consistent healthy diet is a lifestyle change basically and it's not temporary. And splurging every now and then is okay too.