Chia Seeds to Suppress Appetite and Lose Weight?

So I have noticed that if I have a Chia Pudding with my breakfast, I don't feel hungry when my usual lunchtime comes around. I generally eat anyhow, but not as much. They really stick with me, and must expand a lot in the tummy.

So I wonder- has anyone considered putting Chia into capsules for the purpose of appetite suppression or weight loss? They're pretty good on their own in pudding and so on, but people really like pills.

Seems like a good natural way to feel full without having to rely on drugs like caffeine.

I guess before doing something like that you'd also have to know if Chia seeds have any calories on their own?

Good idea?