I find that if I take alot of fiber during the day I tend to have gas and start going in 'bits and pieces' throughout the day. I don''t really know if this is healthy to do but it works for me. I take a mulivitamin, extra vitamin B, omega 3 oil and flaxseed oil and 2 citrucel tablets during the day. At night I take 800mg of magneisum, perdiem (no senna), tsp. of benefiber, Vitamin C, 2 more citrucel, and a cup of tea made from Experience. I figure it's like eating a really high fiber dinner although I do tend to eat well also. It's just trial and error. I do get gas at night often but I'd rather have it at night than during the day. I almost always have a pretty big BM after drinking coffee for a couple of hours in the morning.