Fiber Pills & Supplements: Do They Interfere with Absorption?

Question
Hi Dr. Manger-

I would like to take fiber pills or psyllium husks to help give me a full feeling.  I also take quite a host of other vitamins, minerals, fish oils, etc.  I heard that if I take the fiber, it will nix all my other pills.  Is this true?

Answer
Doubtful.  I'd be surprised if this affected absorption to any great degree.  Similar effect would occur if you took your supplements with a meal, but if you are concerned take your supplements on an empty stomach an hour before you eat and/or take your fiber pills.