sorry I was vague @Tikicristi,
I pretty much use the same insulin for the same meals. Lets say “sandwich” with 38 grams of carbs, I would typically need 3.8 units.
When I need to cut weight, I first reduce insulin, say 10-30% for any given amount of carbs I am about to eat. for that same sandwich, I would bolus 2.5 to 3 units, then to keep my blood sugar good I would take a 15-20 minute mild walk right after eating. The reduction of insulin and the addition of a little activity typically leads to weight loss without hunger.
If I want to lose more than 5 lb, I might also reduce the carbs… say instead of “sandwich” I eat a equivalent calorie salad but only 16 grams of carbs. as above, this is normally about 1.6 units for me, I bolus 1 to maybe 1.2 units and do a bit more or a bit more vigorous walking as well. This works better but I tend to feel more hunger between meals.
carbs at dinner (for me) needs more insulin because I am not usually as active. eating a huge carb meal and covering with insulin and then going to bed will put weight on me. so I first cut carbs at dinner time or anytime I know I am not going to be as active. then after cutting dinner carbs, I would next cut fats, again at dinner time first then lunch then breakfast. This reduction in fats makes a big reduction in calories so if I start getting very hungry I know it’s too much.
If I know I am going to be super active, like a long bike ride, I treat myself to more carbs and fats before the ride and I am really careful to use maybe half (or less) the required insulin. If I don’t do this I’ll be starving and put away a pizza and ice cream for dinner and need to start all over again. =)
yes this may seem backwards, especially to folks who don’t use insulin, but it works for me. Undershooting insulin and using activity to lower my blood sugar helps me not go low while increasing activity and cutting carbs, nobody’s perfect and this takes practice. don’t get discouraged if you go low at first because you haven’t cut insulin enough or put in too much activity. don’t over-correct either because THAT roller coaster can wreck your day.
once I get regular activity levels up I begin to reduce my basal programs. High basal will make you go low between meals. Exercise can change basal requirements as your overall metabolism finds a new balance point. Basal requirements can change for 2 days after activity, so a “active day” program (or pattern or whatever your pump calls it) may become your permanent program and you may need an “inactive day” program instead… I start to watch basal requirements about a week or 2 after I start to make changes in activity.
This takes a lot of testing or a CGM so you know where you are. you’ve had T1 a long time so I assume you are ok with tweaking and adjusting your own insulin including basal and meal bolus. If you’re not then I recommend a CDE. The book “Pumping insulin” can help you with bolus and basal testing protocols. I am glad your thyroid is still good, mine broke 15 years ago. It eventually gets destroyed by the same autoimmune cells that ate your pancreas beta cells. Don’t forget: insulin is a growth hormone. we need it to live but the less we use the easier it is to lose weight. good luck!