On another thread @Dave44 mentioned he did a pump vacay to lose weight, and that has been something I’ve considered myself. I didn’t want to threadjack the other topic, so I’m posting this separately.
I gained 20-30lb over the first year or so of pumping and it seemed not at all coincidental, but I’m not actually sure what the cause is. Commonest explanation I’ve seen for why it might happen: Cuz now you can eat whatever you want and you over-indulge! But that absolutely did not happen with me. I was doing LC/HF before going on the pump and still am. Going on a pump decreased my TDD (my Lantus dose was much higher than my daily basal on the pump). I’ve also started getting much more regular exercise than back pre-pump. But the weight has been very hard to take off. I’ve managed to keep it fairly steady since that initial burst of weight gain, but taking it back off seems beyond my grasp. So ok, I’m also older and that plays a role, but still, the question whether pumping rapid-acting all day for basal is somehow more prone to causing weight gain than the equivalent—or even larger—amount of Lantus taken in a single shot.
The idea that going back to MDI for a while might help break through the plateau has popped into my head a number of times. It would be a pain in some ways but I might actually try it if I knew the evidentiary basis for expecting it to work.