Why Do Type 1 Diabetics Lose Weight

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Why Does Diabetes Cause Weight Loss In Some People And Weight Gain In Some Others?

To understand dynamics of body weight first we have to understand Energy balance equation which states Calorie intake - calorie lost = Weight So if, Calorie intake > calorie lost = Weight Gain Calorie intake < calorie lost = Weight Loss Calorie intake = calorie lost = Weight is maintained Let's try to understand it in patients with diabetes Scenarios causing weight gain in Diabetes 1. In patients with type 2 Diabetes some may have predominantly insulin resistance ( cells are not as much sensitive to action of insulin as they should be ) This makes their pancreas to secrete excess insulin in an attempt to overcome this resistance . Excessive insulin coupled with high calorie intake causes weight gain 2. A patient of Type 1 Diabetes or type 2 Diabetes who has good control of glucose but consumes excess calories than he needs is bound to gain weight . A good number of patients resort to defensive eating for the fear of hypoglycemia and this also causes weight gain Scenarios causing weight loss in Diabetes 1. Any patient with uncontrolled diabetes will usually have weight loss . This is due to the fact that cells of our body are deprived of glucose as a source of energy and therefore b Continue reading >>

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  1. maysi01

    I have been well-controlled on an intensive regimen since diagnosis in 1990. Humalog/Lantus since about 1996. Six weeks on 5:2 (2 adjacent days) so far. Not difficult. Starting the evening before fast days and on the second fasting evening I split my Lantus 8 u evening and 7 u in the morning to avoid having too much insulin hitting me between 03:00 and 11:00 on fasting days.
    Blood sugar is really easy to control with less food and less insulin ! Less insulin is always good !
    I am doing 5:2 not to control my weight (which has been stable at about 78 kg summer and 80 kg winter forever), but because it seems evolutionarily and common sensewise like a Good Idea, because it consumes less of everyone else’s food (and saves money!) and because it might result in a net lower HbA1c, blood pressure and possibly even lower recurrence rate of bladder tumours.
    I also have progressive BPH, but it will be difficult to assess the 5:2 effect because I started 2.5 mg finasteride a few months ago after after 1 mg finasteride for years for hair loss and then cutting it to 1 mg/week over the last couple of years.
    No problem doing my three/week 500 m mtn bike climbs up Lookout Mountain even on fast days; I just take only 5-6 u of Humalog with my normal breakfast about 45 mins before.

  2. morrisminor72

    I am not doing this yet, but am certainly considering it. I’ve had T1D since 1978 and have good control and excellent health in general.
    I lost 17kg over 18 months by sticking fanatically to 1300cal/day (I’m kind of short, and that’s approx my BMR, all carefully calculated etc etc) and exercising, but have slowly gained back 4kg over the past 7 months, with more relaxed eating and some athletic injuries. Am not frantic to drop weight, as I feel quite good at this weight, but would like to if it’s not all too hard.
    My question is – do all the magical biochemical effects disappear if one gorges on glucose to fix a nasty hypo on a fast day? I’m not entirely sure I can accurately count calories while hypo, so may go accidentally well over the fasting calorie limit…. Does one then give up, eat normally, and try again later?
    Oh, and I use a pump with Novorapid.
    Very interested to hear from other T1s who manage this and get the clever biochemical things to happen.

  3. JayKay

    Although I am Type 2 I am insulin dependant on Levemir, Apidra and Metformin SR. I am fasting completely thoughout the day and intend only to eat my 500 cals in the evening which is when I will take my insulin as I normally do.
    My concern is what to do if my blood sugar starts to rise during the day as a result of fat breakdown (rather than food intake). Do I take a small amount of insulin to counteract this or not? Anyone got any ideas??

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