Hello. Just chiming in here. I'm a 70 yr old female and have dealt with constipation issues all my life. I found out later in life that I have a redundant colon, but also a poor diet didn't help matters. Today I take my usual multivitamin, an extra 250mg magnesium citrate, and 2 stool softeners in the evening. At breakfast I drink one serving of Miralax, and I also mix Fiber One with another fiber-rich cereal and some blueberries. I found a multivitamin that has calcium citrate and is iron free. I take an extra 1000mg calcium citrate every day. Most multivitamins contain calcium carbonate and iron. My doctor told me to go with calcium citrate because calcium carbonate can be very constipating, and so is iron. Years ago I tried taking a fiber caplet supplement every day. My constipation got worse, and it was because it contained calcium carbonate. And for some reason Metamucil doesn't agree with me. I also try to eat fiber-rich foods every day, and eating a little broccoli every day at lunch seems to help. I've noticed that many people with bowel issues have a morning routine they need to stick to. Me too. I try not to plan to go anywhere until after lunch. I also have multiple sclerosis (diagnosed in 1999) and Parkinson's (diagnosed in 2018) -- doing very well -- to look at me you'd never know I have these two conditions, I'm very lucky. Hope anything I said here might help someone.