high fat yoghurt with no additives (no pectin, no fillers, no fruit, no syrups, nothing but milk and bacteria) is a good addition to your diet . Low fat or anything with fillers including whey powder and dry milk is less probiotic and more likely to raise blood sugar. Take most fruit out of your diet for a bit while on the stuff.
I had a couple months prednizone once for systemic allergic reaction to poison oak so it is terrible to be on the stuff, but hopefully you will not have to endure this forever and meanwhile, 100% full fat probiotics are going to help weight, health, etc. Counterintuitive, but works