1. Up to a point. I still get full quicker than I'd like which is frustrating, so maybe not quite eating whatever I want. Though yes, I do like how I'm not concerned about maximum calorie count. If anything, I'm more likely to maximize/optimize for more calories.
If anything, I actually now strongly prefer food with more calories, or seek ways to add additional calories (more mayo or cheese on a sandwich, more sugar and cream in coffee, etc.). I don't even like the idea of a salad unless it has lots of Caesar dressing, chicken, cheese, and ideally bacon bits too. I also like Haagen-Daaz ice cream over most brands, since it seems to be richer, creamier, and around double the calories. Though there's a few other brands that fit a similar profile.
2. So far, maybe around 50-100% more. I have enjoyed this thoroughly. I only regret that I'm still possibly stuck at a plateau. It's possible I may be beginning to overcome it, but it's too early to be sure. Because well, I wish I could eat even more. I actually get sad when the feeling of hunger goes away too quickly. I want to be able to eat an entire large pizza in one sitting, or if at a restaurant, to have appetizers, two entrees, dessert, and finish everyone else's leftovers too.
I remember when it used to be where at a restaurant, it's possible, even likely that if I order an entree (no appetizers or dessert), unless the portion sizes are small, there's a good chance I'd have to take home leftovers. I want to get to the point where I need appetizers, two entrees, dessert, and I then ask others at the table "Are you going to finish that?" If they say no, to perhaps eat that too.
3 years