Antifungal tanins are another way to help control yeast. I used a product called Tanalbit with some success (no financial connection, just a happy customer). Yes, I also was taking probiotics at the same time, so that is a must.
All carbohydrates break down into sugars, however it is the carbs from grains (wheat, rice, etc.) and starchy veggies (like potatoes) that feed the yeast. So I would think rice cakes would be a no-no. Make your own substitute products using nut flour...tastes pretty good and won't feed the yeastie beasties!
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Pancytopenia, chronic malabsorption/malnutrition, etc.; G Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Heparin (to flush PICC line), IV Ceftazidime (for Pleural Effusion).