I'm a fairly new vegan...a couple of months now.
I really enjoy eating natural, nonprocessed foods...beans, soya, rice, vegetables, fruit, etc. I would really like to eat like this all the time, but it seems no matter how much I eat I'm always hungry and kind of weak less than 2 hours later! I tried upping protein, carbs, everything, but it's always the same response.
I'm pretty active, so I don't find this too weird - except I've noticed when I eat desserts and sugary processed foods I stay full for hours, even when calorie wise I'm eating less. For instance, yesterday I had 600 calories worth of hummus, pitas, and oatmeal for breakfast and was starving 1 hour later, but today I had 600 calories of toaster pastries, plus a tiny bit of leftover hummus and pita and didn't even think about lunch until 5 hours later.
At first I thought it was the fat, but when I tried eating PB&J sandwiches instead, that didn't do the trick.
Any other ideas as to why this could be? I know my body doesn't need refined sugars to function, and while I enjoy having dessert, it's become almost a duty rather than a pleasure. I'm also worried about how this affects my health/athletic performance. Most (non-vegan) people have suggested I start eating meat again, but I don't think that's necessary!