IP6 is a waste of time. You have to take it all by itself. If you take any food or supplements within 2 or 3 hours of IP6 it destroys any benefit the IP6 has. I tried it for a couple of years with slight to poor results
I switched to Lactoferrin from Jarrow a couple of years ago and the stuff works. You can take it on an empthy stomach, full stomach, with suppliments. It doesn't matter.
I get blood work every year and the dramatic decrease in iron was fantastic. There are lots of places to buy lactoferrin and everyone says theirs is best. Some cost $15 and some cost $50.
I went the $15 route at vitacost.com and the stuff rocks. It really does work.