Type I diabetics have better blood sugar control on a high fat diet

This study was published in Diabetologia 1985 Apr;28(4):208-12

Study title and authors:
A prospective comparison of 'conventional' and high carbohydrate/high fibre/low fat diets in adults with established type 1 (insulin-dependent) diabetes.

McCulloch DK, Mitchell RD, Ambler J, Tattersall RB.

This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/2991051

This study tested the effects on blood sugar control in 40 type I diabetic adults in either a high carbohydrate/high fibre/low fat diet or a low carbohydrate/low fibre/high fat diet.

The diets comprised of:
(i) 45% carbohydrate, 34% fat, 32 grams fibre per day (higher carbohydrate diet).
(ii) 38% carbohydrate, 43% fat, 20 grams fibre per day (higher fat diet).

After 4 months, HbA1c levels were 1.8% higher in those on the higher carbohydrate diet compared to those on the higher fat diet.

This study reveals that a higher fat diet enables better blood sugar control than a higher carbohydrate diet in type I diabetics.