I have heard cooked white rice will form up poop, but it has pretty much zero nutritional value, so your call.
Sometimes she'd make us eat the rice w/water Hated having to eat it but it worked
Wait, so it gets cooked twice?
Sounds like you're talking about what we call "okai" rice ... My Mom's (Japanese although she's Korean, ha ha My Dad's Japanese) old age fix for an upset tummy/diarrhea. Medium grain white rice (sticky rice) cooked, then put in a pot with water about an inch or more above the rice & boil. The boiling removes the starch (water turns from clear to opaque). Cool some & drink the water
Hold your breath, may help going down. We used the water for babies too, just needed to make the nipple bigger. You can eat the Okai Rice put some shoyu/soy sauce to taste, it helps some.
Try tasting it 
