Foods that can worsen GERD symptoms include peppermint, fatty foods, alcohol, coffee,
and chocolate.
Yellow stool can also result from insuffient bile output. Bile salts from the liver gives stool its brownish color. When bile output is diminished, it often first appears as yellow stool. If there is a greater reduction in bile output, stool lose almost all of its color, becoming pale or grey.
If the onset is sudden, yellow stool can also be a sign of a bacterial infection in the intestines.