Hi; Welcome to hcm; Oral malodour in your case might be is due to gastro intestinal problems or acid reflux. As you have mentioned your symptoms oral mal odour in empty stomach or stress is mainly because of acid reflux or hyperacidity that gives acidic mouth odour. Creamadiet powder is nothing but isabghol fibres which is used in management and treatment of constiption. So treating constipation it may help reducing the mouth odour. But creamadiet has side effects like flatulence; bloating; intestinal obstruction so i would suggest you to consult a physician before using creamadiet. I hope this helps; Take care.