I have always had a problem with constipation. I am a lot better now. It took me YEARS to figure this out. Here is what has helped me.
1. This is the biggest help of them all is Kefir. I have tried every probiotic on the planet and while helpful non have the effect of Kefir. I use the real grains that reproduce. The Kefir is mucus producing but mucus producing in a good way. It seems to lubricate. Here is a link to get the grains http://www.torontoadvisors.com/Kefir/kefir-list.php Bone Broths seem to have a lubricating effect as well although less obvious than Kefir and obviously don't get the good bacteria
2. Eat a Protein Type diet - but I don't have raw veggies (or even cooked) each meal. I do at least once a day but every meal seems to aggravate. I have a lot of Raw Milk and Egg Yokes on days my body needs a rest from more solid food.
3. Walk before I need to go to the bathroom. I do a half an hour walk four days a week. But the thing that "sends the message" to go is that I do like a 2 minute walk before I want to go. So I just walk up and down the stairs at my house or walk to my car if I am at work. If you notice kids and animals will run before they have to go to the bathroom. I have learned though if I can't go not to stress about it. Trying to go if I can't hurts my intestines. The Kefir gives me the confidence to just wait till the next day
4. I also use about 3 teaspoons of Acacia powder a night.
I know each person reacts differently but I hope this helps.