My Husband Recently Started Having Yellow Diarrhea. He Has Made

My husband recently started having yellow diarrhea. He has made the following changes: started drinking Braggs Apple Cider Vinegar in the morning with water as well as 2tablespoons in 30oz of water throughout his day. He has also weaned off his omeprazole medication simultaneously. In the morning he also takes a probiotic, along with cholesterol medication.