They say appetite decreases as you get older.

I'm in my early 40s. I wouldn't call myself a big eater, but I think I really love carbohydrates.
During meals, I usually eat at least two bowls of rice, and sometimes even more.
The problem is that I also eat two packs of ramen mixed with rice. That said, I'm not obese;
I'm at a standard weight. I play intense soccer twice a week. I know eating light is good, and my philosophy is to eat without regret during meals, but I've suddenly started to worry.