Hello FruitLoop - love the avatar! Welcome to the forum as well....it's a great place.
My thoughts on this one....I am tapering off pred now too - down to 5 mg after being on for 5 months, with an emerg surgery thrown in 10 weeks back....but will hopefully be off in just one week...yea! Yup, can say prednisone does mask symptoms of any illness so you cna't be sure if it's the food changes for you, or the drug, imo. That said. when tapering, and if you have not been on the drug for long term, I would think it's more the food choices. I have seen me now react to more the lower dosage I go whereas about 4 weeks ago, I was eating better. PLus, just a guess with me and my docs, that my eating pre surgery helped to inflame the blockage I ended up with - not so much the food choices, but we didn't know it was that bad and I wasn't put on a diet of any kind and went by how I felt which was a masked feeling given I was on anywhere from 40-50 mg Prednisone for almost 3 months before having the emerg surgery.....but didn't know until I hit a lower taper and the pain came out full force one night (thank goodness...if it hadn't the intestine could have burst)- the night I tapered to 30mg actually (and I also had a bad spell post surgery when I tapered to 30 again (I was put back up to 50 mg in hospital)
The only thing I know for sure is I have a lactose intolerance (figured that out pre surgery and two elimination tests since have provem me right!). Wheat is ok, but has to be processed things, for eg homemade bread still kills, but a low fat, like weight watchers which is smaller in proportion is ok. I can do some fibre (had to build it back in after the surgery anyway slowly) but not too much. Some fruits ok, others not. I bought 4-5 books on chron's diets (there is no one diet but the recipes in the books gave lactose free and wheat free and low fibre alternatives...which is awesome).
So for me, it's learning curve and trial and error but I would suggest, again, just my opinion here, not a doc, to taper more before trial and error. I think I won't have a good idea for sure until all the pred effects are gone and the doc told me that takes 3-4 weeks for some and up to 6 months for others. *sigh* .... PLUS everyone pretty much agrees while there is no specific diet, having a healthier lifestyle is best for all, esp anyone with a chronic illness like us.
Best wishes! Oh, and the kids ae adorable - have 4 of my own.