1. Get the Diabetes Forum App for your phone - available on iOS and Android.
    Dismiss Notice
  2. Guest, we'd love to know what you think about the forum! Take the Diabetes Forum Survey 2021 »
    Dismiss Notice
  3. Diabetes Forum should not be used in an emergency and does not replace your healthcare professional relationship. Posts can be seen by the public.
    Dismiss Notice
  4. Guest, stay home, stay safe, save the NHS. Stay up to date with information about keeping yourself and people around you safe here and GOV.UK: Coronavirus (COVID-19). Think you have symptoms? NHS 111 service is available here.
    Dismiss Notice
Dismiss Notice
Find support, ask questions and share your experiences. Join the community »

Low bmi and fasting

Discussion in 'Fasting' started by Honeyblossom, Dec 21, 2020.

  1. Honeyblossom

    Honeyblossom Type 2 · Member

    Messages:
    23
    Likes Received:
    11
    Trophy Points:
    63
    Does anyone has any advice whether fasting is detrimental if you are a low weight to begin with. I am interested in 16/8 to reduce morning blood glucose readings but dont want to lose weight. Current BMI 20. Thank you!
     
  2. bulkbiker

    bulkbiker Type 2 · Oracle

    Messages:
    18,397
    Likes Received:
    12,248
    Trophy Points:
    298
    Should be fine just eat lots when you do eat.

    Obviously eat lots of very low carb yumminess...
     
    • Like Like x 2
    • Agree Agree x 1
  3. LaoDan

    LaoDan Type 2 · Well-Known Member

    Messages:
    863
    Likes Received:
    564
    Trophy Points:
    153
    IMHO, you would be better off doing some light resistance training, fasting while lean is more likely to burn more muscle mass, decreasing the very engine that burns glucose. Imho, it’s better to increase lean mass which adds more insulin receptors .
     
    • Like Like x 1
    • Agree Agree x 1
  4. ert

    ert Type 1 · Well-Known Member

    Messages:
    2,190
    Likes Received:
    2,805
    Trophy Points:
    198
    I struggle to lose weight on 16/8 with low carb because of the calories I get from healthy fats such as cream, nuts, cheese, extra cheese, dark chocolate, avocadoes etc. If you're eating the same calories you shouldn't lose weight (just body fat loss and lean muscle gain.)
     
    • Like Like x 2
  5. KK123

    KK123 Type 1 · Well-Known Member

    Messages:
    3,766
    Likes Received:
    2,393
    Trophy Points:
    198
    I've been a one meal a dayer for as long as I can remember (mainly due to shifts and a chaotic job) and at the moment I am on a keto diet. I am finding it hard to keep the weight on to be honest (always been around the middle of BMI) and now reducing to around 21. I struggle to eat enough cheese, nuts, cream, meat etc, in one meal, it makes me feel sick because those foods are so filling. I have a healthy appetite but just cannot pack in enough food to stop the weight loss. I've started to introduce a piece of cheese or similar at other times of the day because to be honest eating around 1600 calories in ONE sitting is becoming gross.
     
    • Informative Informative x 2
    • Like Like x 1
    • Hug Hug x 1
  6. Resurgam

    Resurgam Type 2 (in remission!) · Expert

    Messages:
    8,787
    Likes Received:
    5,264
    Trophy Points:
    198
    I found consistently higher BG levels when I did not eat in a morning.
    Maybe before settling on a regime of fasting, try eating 12 hourly. That showed a marked difference in my levels after eating. I have, however, never bothered to test first thing in the mornings - as I have no way to 'fix' a high reading, but my Hba1c is 42 so not much of a problem.
     
    • Like Like x 1
    • Informative Informative x 1
  7. Honeyblossom

    Honeyblossom Type 2 · Member

    Messages:
    23
    Likes Received:
    11
    Trophy Points:
    63
    Thank you for your comments and suggestions. I guess a bit of experimentation wont hurt. Could try a bit of resistance training...never thought of that. I forgot to mention I can only increase fats to a certain extent due to no gallbladder but 12/12 maybe a happy medium too.
     
    • Like Like x 1
  8. bulkbiker

    bulkbiker Type 2 · Oracle

    Messages:
    18,397
    Likes Received:
    12,248
    Trophy Points:
    298
    Quite a few people are gall bladder less around here.. although I can't recall who to tag them in.. extra fat should come as part of what you eat rather than extra so maybe some of the fattier cuts of meat so you get protein and fat combined.
     
    • Like Like x 1
  9. DCUKMod

    DCUKMod I reversed my Type 2 · Master
    Staff Member Administrator

    Messages:
    14,302
    Likes Received:
    8,226
    Trophy Points:
    298
    @Honeyblossom - My BMI is 18.5-19, so don't have much wiggle room for weightloss, but I have sometimes used fasting, albeit usually on long haul flights and such like, where I feel confident the food wouldn't make me happy, so I just choose to swerve it.

    When I want to do that (the fast will usually be 36-48 hours- depending how you add in or take away time differences), I usually do a few days of carnivorous eating beforehand. I usually just do the carni - fattier meats, whether that is lamb, a fattier steak, belly pork or chicken thighs, right up until I get onto the aircraft, then that's it until I arrive, and have slept.

    I don't think about what level of calories I'm taking in on the carni phase, but it'll be a few.

    Many, many find the lack of gallbladder to be a red herring when low carbing. Personally, I have my gallbladder, but I do have a fat threshold. If I just eat too much - usually nut based fats, I experience steatorrhea. I won't describe it, but should it occur, I just dial back on the fats/nuts a bit until it subsides.

    When I come out of the fast, my first meal will always be light. else my tummy can feel like I've eaten a boulder.

    Obviously, we're all different, but for me it's doable provided I prepare.
     
    • Informative Informative x 1
  10. Honeyblossom

    Honeyblossom Type 2 · Member

    Messages:
    23
    Likes Received:
    11
    Trophy Points:
    63
    That's really helpful. So it's not just us gallbladderless people that experience problems with higher fat intake. I take my hat off to anyone managing 24 hour + fast, I'll experiment and see what works for me.
     
  11. DCUKMod

    DCUKMod I reversed my Type 2 · Master
    Staff Member Administrator

    Messages:
    14,302
    Likes Received:
    8,226
    Trophy Points:
    298
    To be honest, I think anyone going from a standard non-low carb diet to a 24+ hour fast could struggle, but having becomed accustomed to fuelling on protein and fat, which is very good for satiety, it's easier than you think.

    When I first did it, I kept busy, but on flights, where periods of time are punctuated by food, drink and films, it's important, in my view, not to be hungry.

    Good luck with whatever you decide to try
     
    • Friendly Friendly x 1
  12. AloeSvea

    AloeSvea Type 2 · Well-Known Member

    Messages:
    1,510
    Likes Received:
    1,691
    Trophy Points:
    178
    Fasting certainly has an impact on my morning blood glucose levels, at least for a couple of days after fasting, so I understand you wanting to use it as a treatment method.

    @Honeyblossom - what is your HBA1c? If I may ask. Because long term 'just' low-carbing longterm may give you the result you want, anyway, without going without eating. When I fast periodically I know I have stores of fat, still, that my body draws on for sustenance, but you are very lean, so... On the other hand - if you have fat on your liver/in you pancreas it would draw on that for energy, which is what you want.

    One thing that fasting also does which can be very helpful is shine a light on the role of food in your life, so you can better adapt to changes by responding to those roles, and filling them with something other than comfort food...

    but if you are a lean type two, and on diagnosis? you are a rare type.

    Personally, I would fast with medical assistance, if I was you. It could be online in these covid times of course. I did anyway, when I started fasting many many moons ago, until I was very confident, as I am now, about what I am doing. The medical assistance is essentially a back-up in case anything goes wrong, and is done in the form of lots of testing, to make sure all your organs and your metabolism is ticking along nicely...
     
  13. Honeyblossom

    Honeyblossom Type 2 · Member

    Messages:
    23
    Likes Received:
    11
    Trophy Points:
    63
    Thankyou for your comments @AloeSvea. I was hba1c of 40 on last test (april 20) and am awaiting next blood results. I was bmi 23 on diagnosis down to 20 after low carbing and taking on board all the great advice on this site. My main bug bear is a morning glucose consistently in the 6s but I guess as you said if I can keep my hba1c where it is, a high normal, maybe I shouldn't be worrying. Let's see what the next tests say.
     
    • Like Like x 1
  14. OrsonKartt

    OrsonKartt Type 2 · Well-Known Member

    Messages:
    1,049
    Likes Received:
    4,683
    Trophy Points:
    178
    I’m a tall skinny type. BMI 20, sometimes less , always low carb / keto (4 years +) .... morning sugars mainly 6 ish sometimes 5 ish. ... I try to eat in the morning only if I’m really hungry which sometimes happens.

    I can’t say that I’ve noticed much difference in fasting numbers either way.

    Now I enjoy that fasting feeling of lightness - also the enjoyment of food is more significant after periods without.

    ..... it took me a while to lose the anxiety of those numbers. I try to be more relaxed about it now. My advise try stuff out and see what happens.
     
  15. NicoleC1971

    NicoleC1971 Type 1 · Well-Known Member

    Messages:
    2,960
    Likes Received:
    1,790
    Trophy Points:
    198
    16/8 should be fine but remember to re feed with plenty of protein and fat so that you maximise your muscle mass. Your BMI doesn't tell me your body fat levels but I'd assume you are a lean type with low levels of muscle? During those 8 hours you may need to include high quality carbs in order to get enough calories to allow you to build muscle in response to some kind of resistance training. If you don't eat enough there's a risk that your body will use muscle for fuel though this is a last resort!
    I know this a low carb kind of a forum but for those trying to keep their muscle mass up some insulin and hence some carb may still be required where the person is already lean.
    I would avoid anything longer than 16 hour fasting but you can keep an eye on your waist size and blood sugars as a decent measure of success rather than bmi unless you are clearly losing a lot of muscle as well as fat.
    Also see how you feel after a week or 2 of trying this!
     
  16. Saman1

    Saman1 · Member

    Messages:
    5
    Likes Received:
    2
    Trophy Points:
    1
    My BMI is 19.8 , But I am on a very low carb diet for the last 3-4 months and the HBA1c has come down from 7.1 to 6.1 so far. I want to bring the BMI under 19, I had diabetes for over 35 years, hope this will help. Dr Jason Fung (youtube) says even the skinny people may have fat in the liver and pancreas
     
    • Informative Informative x 1
  17. carty

    carty Type 2 · Well-Known Member

    Messages:
    3,307
    Likes Received:
    2,083
    Trophy Points:
    178
    I am a skinny type 2 and my morning levels are always 2 or more above levels at any other time .I have tried every thing known to man woman child and probably Elephant !! And it still won't come down So my liver must be so concerned about me that it throws out a load of glucose to save me from starving to death before I can have breakfast What would it do it I fasted !!!?:arghh:
    Carol
     
    • Funny Funny x 1
  • Meet the Community

    Find support, connect with others, ask questions and share your experiences with people with diabetes, their carers and family.

    Did you know: 7 out of 10 people improve their understanding of diabetes within 6 months of being a Diabetes Forum member. Get the Diabetes Forum App and stay connected on iOS and Android

    Grab the app!
  • Tweet with us

  • Like us on Facebook