I have definitely noticed this effect. My portion sizes are actually quite huge, quite often. Little substitutions make a big difference - if i can reduce the amount of oil in my stir fry by 1 tsp, I can add a whole extra cup (or more) of zucchini. So much more food, same amount of calories! If i can forego the baked potato and make a salad instead, I can have a really huge steak and a really huge salad. And when you take out the processed/junk stuff - the chips and cookies and cakes and candies and fast-food fare - wow that stuff packs a LOT of calories, and yet is often not very filling! When you fill your plate with veg and fruit and meat and beans and whole grains, you can have quite a large portion at only a fraction of the calories of a "processed/fast food" meal.
I remember that for the first few days, maybe up to a couple of weeks, at times it almost felt like "I don't know if i can even eat 1200 calories, I'm FULL" - really made me wonder, how is it that I HAD been eating 3000+/day and always felt famished, now I'm eating 1/3 of what I used to, how could I POSSIBLY be "full"? And yet, I was! Quality nutrition trumps quantity! Actually, I see a lot of people post about feeling that way early in their journey.
Goal 1 - break 200 (46 pounds lost)**DONE**
Goal 2 - leave obesity behind (BMI 29.9, at 185#) **DONE**
Goal 3 - BMI = Normal (154# or less)
| current weight: 164.0