Here's what most doctors never learned: Chronic constipation after age 55 is not caused by a lack of water, fiber, or simply "getting older."
The real problem is simpler. And the solution is much safer.
Your colon doesn't move waste on its own. It's not automatic. It's not like your heart beating.
It relies on a chemical signal called butyrate — produced by specific beneficial bacteria in your gut — to trigger peristalsis, those wave-like muscle contractions that push waste through your system.
Without that signal, your gut muscles literally don't know when to contract.
Think of it this way: Your gut muscles are like workers waiting for instructions.
They're there, ready to work. But if the foreman (butyrate) doesn't show up to tell them "GET TO IT," they just stand around... doing nothing.
The bacteria that make butyrate, specifically Bifidobacteria and Akkermansia, are the foreman.
And after age 55, they start to die off. Fast.
Here's why: