I use 'Clear & Natural' powder fiber supplement 2-3x/day for my constipation
(from 'Metamucil' - hard to find, I get it at 'Safeway' [7.5 oz]
or on-line from 'Rite-Aid' [11.5 oz]).
Use less than 'Fiber Sure' (& works better) for same $$.
Can be added to recipes, too.
No taste, no grit - 1 tsp in plain water or juice.
It really helps me - a LOT !(at least 3 days out of 5)
No sudden rushes for the W.C.
Works overnite.