My husband had terrible problems with opening his bowels. Even before the constipation the dementia seemed to take away his ability to know when he wanted to go. The doctor came out twice and gave him a suppository. That didn't help much. He did not understand that he needed to hold that in for as long as possible.. The bowel nurse came a couple of times but nothing we tried seemed to help. Eventually he went into a care home and there was all manner of problems made a lot worse by the fact that he would not let them help him. I used to visit every other day and always at lunchtime. He was being given porridge everyday for breakfast. In the afternoon he had a bowl of fresh fruit. But at lunchtime he was always given puddings. He always loved food like syrup pudding, rice pudding etc. But I insisted that they tried to give him a bowl of fruit for pudding at lunchtime.He was also given fresh orange or other juice. Now cannot be sure how this worked for him everyday but it certainly helped and solved the worse of the problem. I felt terrible as I knew how much he liked the puddings. But with the dementia he would eat anything. So I believe lots of fruit and veg help a lot. Juice to drink and as much water as possible. I hope this will help. x