Register for The Blood Sugar Diet

Welcome! This site is a great place for everyone who is either doing The Blood Sugar Diet or interested in finding out more and it is entirely free to use. To post a recipe, recipe review or join the discussion on the forums, you’ll need to register and log in. You can do that here.

However we are unable to offer extra support with the diet or validate advice given on the forum or elsewhere by other users. If you are experiencing medical issues or have concerns, you should speak with your doctor. If you are looking for personalised professional help in doing the diet, you may want to have a look at our online program.

If you are a member of Clever Guts,,  you can login to The Blood Sugar Diet using the same details you use there, there’s no need to re-register. If you have any issues with it, please contact Thank you!

This is the name which will be shown on the site. Please don’t use your email address!

This will be public and shown in your profile.

In particular I know I SHOULD NOT do a low calorie / fasting diet if I am:

  • Underweight and/or have a history of an eating disorder
  • Under 18 years of age
  • Pregnant or breastfeeding
  • Diagnosed with a significant psychiatric disorder
  • Frail or recovering from surgery
  • Under active investigation or treatment or have a significant medical condition affecting ability to comply with diet
  • On certain medications
  • A Type 1 diabetic and or have other, rarer forms like pancreatic or monogenic diabetes which will not respond in the same way to weight loss.
  • Unwell or have a fever
You should also confirm with your doctor that you really are a type 2 diabetic as there are other rarer forms of diabetes that will not respond in the same way to weight loss.

Use CAUTION doing a low calorie / fasting diet & DISCUSS WITH DOCTOR if any of the following apply:

  • On insulin – detailed assessment & education by health professional to plan a suitable reduction in medication/insulin to avoid a potentially dangerous drop in blood sugar (hypo)
  • Those who have a significant underlying medical condition should speak to their doctor first, as they would before embarking on any weight-loss regime
  • If you have type 2 diabetes and are on medication, it will be necessary to adjust your medication (it may need to be reduced or stopped as blood sugars improve and to avoid hypos)
  • If you are on blood pressure medication this may need to be reduced or stopped as blood pressure improves.
  • If you are on diabetic medication with hypoglycaemia unawareness, so you cannot tell if you have a ‘hypo’ when your sugar level drops
  • If you have moderate or severe retinopathy you will need extra screening within 6 months (as retinopathy can sometimes get worse when blood sugar improves)
  • If you have a significant psychiatric history in the past
  • If you are on other medications, discuss with your doctor first eg Warfarin
  • Have epilepsy (though there is some evidence that diet can improve epilepsy)
  • If you may be pregnant. Clearly avoiding fasting/low calorie diets is wise, however if there is a risk of (or previous history of) Gestational diabetes, The Blood Sugar Way of Life might be a suitable alternative.
Please read this handout (pdf) for additional information.