I have had Parkinsons since 2002 and am a 68 year old woman. Years ago, I had a friend offer up this recipe that my family calls Annie's Fanny Fixer. I have had great results with no colon problems and no constipation since I started drinking this every morning! I use only organic products.. Mix 2 cups of ground organic flax seed with a 12 oz container of organic psyllium whole husks. Each morning I mix 1 tablespoon of this mixture with a half cup of cold water and drink immediately. I usually add whatever liquid supplements (like liquid COQ10) I might also take at this time. Do this every morning without fail and you shouldn't have constipation problems. This works for me and I hope it works for you. Have a safe and happy 4th of July!