Psyllium = psyllium seed husks. Good for additional dietary fiber. Just add a couple of teaspoonsful to juice or smoothie. Consume quickly, before it turns into gel.
I recommend psyllium husks, not ground/powdered psyllium or whole psyllium seeds. Although the powdered stuff (Metamucil, etc.) probably works, it's a bit less palatable, IMO. But Metamucil does make one-portion travel packets, which might make this easier for road warriors.
Traders Joe's is a good source of the husks, as are many health food stores.
