What is the reason?

[736_switch_blade]

I drink coffee any kind with any milk hot or cold and I still have to evacuate. I tried tea sometimes with sugar or agave and it’s still the same thing. I suffer from constipation though and I love the taste of coffee.

[MORPHEUS_12]

I assume when you say evacuate you are referring to your bowels? You could be lactose intolerant.
Coffee and tea sends a signal to your stomach to release gastrin. This kicks off a wave of contractions in your gut called peristalsis. This causes you to poop.

[PointTaken]

Coffee is an expectorant. It happens to people. Some have a higher tolerance to it. Sucks you have constipation but coffee would help. Lol

[GoodGuyBreakingBad]

That's the way coffee acts on people, same here with me.

[GoodGuyBreakingBad]

Thanks for MHO :)

[Miristheiss]

You need more fiber in your diet.

[736_switch_blade]

But fiber powder tastes bad

[Miristheiss]

Fruit with skin, oatmeal, raisin bran, grape nuts, broccoli...

[slatyb]

That's normal. Caffeine moves the mail.