Bile released from gallbladder can be bright green or sometimes orange, bright yellow.
There is no one "normal" color of stool, as color can be affected by food.
As food mixed with bile moves through the digestive tract, it turns from green to yellow-orange to brown.
Bile + good bacteria is what gives stool its final brown color.
There are several common and benign reasons for passing orange stools. Supplements and medications that can cause orange-colored stools include those containing beta-carotene (sometimes found in vitamin A) and aluminum hydroxide (which can be found in antacids).
Foods that can cause orange stool include:
Any food with artificial yellow or orange coloring
Red Beet juice
Any Red colored juice like red raspberries
The liver constantly secretes bile into gallbladder & then into small intestine.
As bile makes its way through the intestines, it progressively changes color from green to yellow/orange to brown, due to the action of bacteria in the large intestine on the bile salts, bile pigments.
Yellow/orange stool may indicate that food has passed through the intestines faster than normal or that good bacteria is missing.
Green stool may indicate that food has passed through the intestines faster than normal (called decreased bowel transit time), before it could be changed from green to brown. Or that good bacteria is missing.
It is the work of good bacteria that converts original bile pigmets (bile salts) into brown or yellow-brown.
Unless you have diarrhea, it appears that your colon have lost good bacteria, that is why your stool has unusual color.
One of the comon desinformation is that bright yellow stool means not enough bile.
Bright yellow is the natural color of bile, on it's way thorugh intestines.
If a stool is bright yellow, there could be more then enough bile.
Actually, large amount of bile can speed the bowel transit time, and can indirectly affect stool color, cause shorter bowel transit time can mean not enough time for bile to turn brown, not enough time for good bowel bacteria to do their job.
Fo feces to become yellow-brown or brown, COLON NEEDS GOOD BACTERIA!
What are the signs of low bile?
Pale grey or sometimes pale yellow/grey.
If there is a greater reduction in bile output, stool lose almost all of its color, becoming pale grey.
Bright yellow usually means enough bile, but not enough bacteria.
Color of stool also depends on what you eat.
Meat usually gives darker brown color.
Dark brown bread (whole grain) can give darker stool color.
Chocolate can give darker stool color.