I believe that parasite herbs work even if the diet is terrible. I feel it will take longer if you are eating sugar, junk food and lots of carbs, because you are giving them just what they love and thrive on to live and GROW.
My advice is to try your best, I fall off the good diet some times also. parasites make us crave bad foods, the foods that they want, so it can be pretty tough at times.
I also have times when I am not hungry for days, I just make sure I drink lots of water and herbal tea too. Just do you best, we are here to help if we can...heyjude