What can I eat to feel full that's not fattening?

Original fiber one cereal is REALLY filling and if you eat it with unsweetened vanilla almond milk, cinnamon, and stevia it tastes amazing too.

Egg whites.
Make a huge savory portion with vegetables, some cheese, ketchup, and a bit of butter spray.
Or a sweet version with light maple syrup, fat free cream cheese, cinnamon, butter spray, & stevia.

Vegetables in general. Cook a ton of them and add it to anything you are eating (chicken, fish, beef, pasta dishes, etc). Put a low cal (20/tbsp) sauce on it so you actually enjoy it.

HUGE SALADS. A bag of prewashed lettuce + vegetables + some protein + dressing = you will be full.

0% greek yogurt. Mix it with fiber one, puffed cereals, fruit, cinnamon, stevia, sugar free chocolate syrup, sugar free jello, sugar free pudding mixes or actual sugar free pudding, etc. You can even mix it with dill & cucumber if you want something savory.

Popcorn doesn't really fill you up imo, it just gives you a big bowl of something to munch on. It's kind of like eating air. There's a difference between wanting to sit down to a big bowl of food for a while vs wanting to feel full.

roasted cauliflower fills me up

I love making chia pudding by putting chia seeds in a jar with fruit and pouring a protein shake over them and leaving them to soak.

Bump for later

Protein is always good. Apples can be helpful. The pectin helps with satiety, also the mastication process helps to satisfy. Some like pb with their apples (watch out for that because it is loaded with kcals.) Some try to avoid fruits do to the fructose and their glycemic index, but apples are a good choice, or pears.

I don't know if this was mentioned, so I apologize for any redundancy...

One of the biggest things I had to learn is that there's no need to eat until I'm "full". If I have a snack that is 250 calories, with a good ratio of protein/fat/carbs, then I've eaten enough calories and nutrition to fuel me for the next few hours even if I'm not feeling full. My unfull belly is not a signal that I need to eat more.

This can be very challenging to learn, and the way to go about it is to trust the numbers. Trust your food diary to show you, yes, you have enough calories and nutrition to get through your morning/afternoon/whenever with enough energy. Your full or empty belly is not a reliable signal. If I have a 350 calorie breakfast but I'm not full, that doesn't mean I need more food. I know that 350 is enough, regardless of the volume of the contents of my stomach.

A huge benefit of learning this, for me...is that I realize I actually perform better when I'm not full! I have more energy, feel less lethargic, and literally feel lighter when my belly isn't full of food. It's easier for me to function on an emptier belly (as long as my caloric/nutritional needs are met of course). Sometimes I purposely eat calorie dense foods in order to get my calories without filling up.

Having said that...yeah, lol sometimes I like to eat until I'm in a food-coma. My dinner is usually humongous...bulked up with tons of veggies, along with a healthy portion of protein and sometimes something carby. You don't have to give up that happy-full feeling completely, but realize it's not necessary for being satisfied and properly fueled.

(Other people have given great advice, too, about getting enough fat and protein, those ARE essential to feeling satisfied. In my response, I'm strictly referring to "fullness" which is different from "satiety".)

Fiber, fiber, and more fiber! It expands in your stomach making you feel more full longer! But what ive noticed is snacking isnt bad as long as you snack on the right stuff, increasing your water intake helps as well. Makinh these snall changes, ive lost 15 pounds in 24 days. Good luck!