Does having my vitamin supplements with Oats, prevent absorption?
Are at hand any foods that prevent vitamin, mineral, herb, amino acid absorption
Answer: It wouldn't prevent the digestion per se. but the oats would absorb some of the liquid. Your body would still digest the oats and you would still obtain those nutrients, though, so it wouldn't prevent your body from getting them.
It's the same reason that you can get through oatmeal with a well in proportion breakfast... it adds to it, but it doesn't take away any of the impact of the liquid, milk, eggs, etc. ;-)