I thought I would share the results of a recent study. It looked at 1112 (wow!) people with Rheumatoid Arthritis who were either taking 7.5mg or less of prednisolone regularly, or a control drug which wasn't a steroid.
After two years, those taking prednisolone weighed on average only around 1kg more (0.4 - 1.8Kg) than the control group. And there was no difference between the groups when blood presure was measured.
Having had a massive weight gain on high dose steroids personally, followed by a very long battle to get my weight back down once on a maintanence dose and also requiring anti-hypertensive treatment, I found that very reassuring - as I cannot now come off the low (5mg) daily dose.
I know there are other people here who are similarly on a low maintenace dose, so here's the good news for you. It would be better not to need them, but we have to cope with what we've got.
For those who like to read it for themselves the original study is at Ann Intern Med doi:10.7326/M23-0192