Flaxseed?

If you soak the whole seeds in water over night then drink the whole lot down in the morning, you get all the goodness as they release their oil into the water. Yes you do pass the whole seeds but as you've already had the good bit - that's fine!

glass of water first to "cleanse" the stomach, then 20mins later drink the seeds/water - it does take a bit of getting used to but you can take it off a spoon first till the consistency isn't a problem.