With Metamucil you have to drink tons of water. I find All bran original is working for me. I switched to fiber herbal capsules and I am back to being sluggish. I don't get it! I eat tons of fiber during the day, went for 7 bm's today, but they were all small ones, sluggish. I'm so sick of this! I'm so obsessed with the amount of fiber I take each day, water and hemmorhoids, of which flared up again today!