Glycaemic stability of a cyclist with Type 1 diabetes: 4011 km in 20 days on a ketogenic diet

Background Maintaining glycaemic control during exercise presents a significant challenge for people living with Type 1 diabetes. Significant glycaemic variability has been observed in athletes with Type 1 diabetes in competitive contexts. While very‐low‐carbohydrate ketogenic diets have been shown...

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Bibliographic Details
Published in:Diabetic medicine 2019-11, Vol.36 (11), p.1503-1507
Main Authors: Nolan, J., Rush, A., Kaye, J.
Format: Article
Language:English
Subjects:
Carbohydrates
Case reports
Diabetes
Diabetes mellitus
Diabetes mellitus (insulin dependent)
Diet
Glucose
Glucose monitoring
High fat diet
Hypoglycemia
Ketogenesis
Low carbohydrate diet
Nutrient deficiency
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Summary:Background Maintaining glycaemic control during exercise presents a significant challenge for people living with Type 1 diabetes. Significant glycaemic variability has been observed in athletes with Type 1 diabetes in competitive contexts. While very‐low‐carbohydrate ketogenic diets have been shown to minimize glycaemic excursions, no published data have examined if this translates to exercise. Case report We report the case of a 37‐year‐old man with Type 1 diabetes who successfully undertook a 4011 km cycle across Australia over 20 consecutive days whilst consuming a very‐low‐carbohydrate ketogenic diet. Continuous glucose monitoring data capture was 98.4% for the ride duration and showed remarkable glycaemic stability, with a standard deviation of 2.1 mmol/l (average interstitial glucose 6.1 mmol/l) and 80.4% of time spent within a range of 3.9–10 mmol/l. Interstitial glucose was
ISSN:0742-3071
1464-5491
DOI:10.1111/dme.14049