Energy require to convert saline water to fresh water for a range of salinity and recovery levels. 1 kJ/kg (1.05 kWh/kgal). Seawater is 3.5% dissolved salts by weight.
I'm type 1 diabetic, always had problems w prednisone raising my blood sugar. I was just prescribed 20 mg a day for 7 days for a SLE flare up. I can't believe this, I'm having quite a few lows! It was interesting to see someone else have the same.
Prednisone can have some nasty side effects, especially at a relatively high dose that you're on. It can definitely affect blood glucose levels, cause low energy and horrid weight gain. Fortnately, many of these side effects go way pretty quickly once you're able to stop the meds.