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Reduced insulin requirements with weight loss?

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Mini-Vicki

Well-Known Member
Relationship to Diabetes
Type 1.5 LADA
Hi all 🙂
Three weeks ago I changed my diet. I decided to go vegan for ethical reasons and also to lose weight.
It's been going well, and I've lost 3kg so far. My diet has been completely overhauled, and I no longer snack if I can avoid it.
I expected my insulin requirements to change, but I wasn't exactly sure what would happen.

My lantus has been at 17iu for several months now, and my humalog is 1iu:10g carb with a correction of 1iu:3mmol. Pretty big standard! My BGs have been very stable recently, but I noticed my fasting BG was starting to get lower and I was having to have some jelly babies before bed to ensure no night hypos. I reduced it to 15iu and last night to 14iu

Last night I was 12 mmol before bed (highest in a while!) so I took 1iu of insulin which should have bought me down to 9mmol. 2 hours later at 2am I was at 6.2mmol so I ate some jellies and went back to sleep. On waking at 8am I was 3.8. Corrected with glucose and had breakfast with 50% of the insulin I would usually give.

Had another hypo an hour later. It's been a struggle to keep my BGs up all day and have had several hypos.
I phoned my DSN today and she has advised me to change my ratios to 1iu:15g carbs and a correction of 1iu:4mmol, to keep my lantus at 14iu for 2 more days to allow it to catch up, and if still waking low on Friday to reduce it again to 12iu. She explained that losing weight may have made me more sensitive to insulin, and may need less insulin because there's less of me essentially.

Has anyone else experienced something like this when losing weight?
I'm so exhausted from all the hypoing, and quite frankly a little scared of all the hypoing, but I think I might be over emotional because of all the ups and downs today!
Thanks guys and I apologise for the long rambling post!
 
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Congratulations on the lifestyle change & the weight loss..... Afraid all I can give you is encouragement as all this insulin stuff is like a black art to me:confused:
 
Well done on your planned weight loss.

I definitely had to change my basal and bolus insulin as I lost weight. The only way of finding out how much is to do what you are doing, test and review and adjust ratios and basal as necessary.
 
Yes - and the reverse happens if people put on weight. Losing flab does make our bodies use the insulin more efficiently because the excess weight causes an amount of insulin resistance. It is not at all unusual for T1s who increase their weight above a certain amount - to need to also take metformin, to try and address that resistance.

Happily - you are going in the other direction.
 
Thank you all for your support 🙂
My fasting BG was 5.7 today, so at least not hypo. I'll see how it pans out over the next few days. But it's nice to know the reason behind the change.

Thanks again all x
 
You are doing brilliantly! Well some for making such good changes, just stopping snacking is hard and great you lost weight.
I move from being vegan to vegetarian to being vegan again! Can I write to you and we can talk about recipes and delicious vegan food?
 
Yes of course! I've only been doing this a couple of weeks so I haven't got any vegan recipes yet, so any help Much appreciated!
 
This is exactly what happened to me and thrown all my numbers completely around and still going through it. Was stable for 10 years then lost 1 stone in weight and started going low mega quickly in the afternoons and evenings. Would like you take some sugars during the night but would still wake up low. Go to bed on 10 or 11 and go down to 6 which is good but at the same time basal should not be doing this. Currently taking 18 units of Tresiba but had another hypo this afternoon so think I need to revisit my levels again both basal and bolus. Novorapid seems to last a lot longer or probably need to reduce my ratios - so confusing - good luck
 
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