Is having yellow stools normal? could eating pumpkins cause yellow stools?

Stool can be light, medium or dark brown, green and even yellow depending on what your diet contains. Clay color stool is a light yellow tan and it is a concern when it stays that color for a prolonged time (more than 5 days). It can indicate liver disease where the bile ducts are damaged. Talk to your Dr if you have persistent clay colored stool, as they can test your liver enzymes and do imaging