White-Yellow like clumps in stool

Hello, I started taking Grapefruit-Seed-Extract a few months ago and ever sine I've had white-yellow clumps in my stool, I have no idea what they are and they don't seem to be from anything I've. I;m currently following a candida diet and taking anti-fungals every day. The problem seems to have lessened but I;m still seeing a lot of chunks.

This is a picture of it if anyone dare look at it:

//www.curezone.org/ig/i.asp?i=71120

Does anyone know what this could be?

Thanks for the help in advance. Tweet