apparently yeast is another trigger lise, so get her off her marmite on toast
I hope you don't mind me making a suggestion, Lisa?
Wheat can trigger/aggravate candida infections too - so as well as bread, wheat pasta can also be a problem
I have cooked for someone with a candida gut infection - there is an awful lot of food they need to avoid; I've just found this:
Anti -Candida Diet - At A Glance GuidelinesFoods to eat: vegetables, nuts, seeds, and oils
Foods to moderate: whole grains, brown rice, oats, and barley
Foods to avoid: sugar, packaged and processed foods, yeast breads and pastries, mushrooms and truffles, most condiments and sauces, fruits for the first three weeks of your candida-elimination diet and re-heated leftovers.
Obviously this list is designed for the human sufferer - but the infection is the same in both humans and animals (Candida Albicans), so anything that allieviates it in humans should also work for dogs
I hope she feels better soon