I eat really healthily but have recently added a weight gain powder, Hulk by Muscle Sports and am my faeces are abnormally coloured often with a red tinge which I have a feeling may be blood. I feel fine but am getting worried now but am too embarrassed to go to a doctor.
About your discoloration... I wouldn't worry about it... it's most likely just food you're eating. Could be anything from apples to carrots really. The only time you should worry is if you have a pain while... you know. Then you should be worried.