Impact of Bedtime Snacks on Glucose Control in Type 2 Diabetes

Status Completed

Clinical Trial Summary

Approximately 3 million Canadians have type 2 diabetes, a condition where the blood sugar levels are too high, uncontrolled blood sugars lead to cardiovascular disease and other complications. Patients with type 2 diabetes are often advised to consume a snack before bed in order to help control morning blood sugar levels. However, scientific evidence for this dietary approach is limited and there is no data to help elucidate what the ideal bedtime snack is. We hypothesize that a high protein, high fat snack with very little carbohydrate, will be an effective bedtime snack for lowering morning glucose without spiking glucose levels in the night. In this study we will determine if a bedtime snack that is high in protein and fat but low in carbohydrate can help improve morning glucose control in people with type 2 diabetes. This information will provide scientific evidence for the potential health benefits of strategically-timed high protein, high fat snack consumption in people with type 2 diabetes.

Clinical Trial Description

Fifteen patients with physician diagnosed type 2 diabetes (HbA1c 6.5-9%), between the ages of 30-80 years, and not on exogenous insulin therapy, will complete three, 3-day intervention periods (proof-of-concept randomized trial). Participants will consume a standardized diet for three days with either i) two hard-boiled eggs, ii) fruit yogurt; or iii) control no-bedtime snack, thirty minutes prior to bedtime. Fasting blood samples will be obtained on Day 4 in the morning after following each 3-day dietary intervention. Blood glucose will be monitored continuously across the intervention period using continuous glucose monitoring (CGM). CGM allows for the moment-to-moment changes in blood glucose to be examined for several days, allowing the unique opportunity to examine the glucose responses at different points of the day, including fasting hyperglycemia in the morning, nocturnal glucose, and postprandial glucose in response to meals. To our knowledge, CGM technology has never been used in a bedtime snacking study in type 2 diabetes. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03207269
Study type	Interventional
Source	University of British Columbia
Contact
Status	Completed
Phase	N/A
Start date	July 20, 2017
Completion date	August 31, 2018

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