The Chia Seed.
The humble chia seed!!
If you're struggling with Constipation, try incorporating chia, either in a pre made drink (love grape chia kombucha by Synergy), greek yogurt with chia on the bottom (17g protein), or make your own chia pudding (many recipes online).
My bf works at one of those hippy grocery stores and just brought home some chia yogurt one day. HOly Crap---literally.
Check it out. Chia is high in Protein, Fiber, Essential fatty acids, and many many Vitamins and minerals etc etc. Do your own research. I'm amazed.
-unbe