What Might Be The Cause Of White Poop?

Hello. Yesterday I experienced having a white poop, which is not really common? I have recently switch up my style of living, during christmas break I almost ate only trash and food including much sugar. Now, I eat crisp bread, fruit and loads of vegetables. I work out a lot, and Im really happy about that. But after yesterday I've been worried.. I googled the symptoms and they told me this could be caused by a serious liver desease.. Is it normal that my poop changed color? I havent got the time to poop again so it might have been only that time (I remember eating loads of fruit and yogurt that day) My mom, who is quite good with food, told me it is most likely because of the food, but after checking up, and being told to go to a doctor im really conserned. I have lost 2kg of fat just to mention. I also experience loads of hunger and some small pain in my lower stomach, which is NOT where my liver is located..

Thanks alot, Brage, 15 - (sorry if my english is bad.)