Nutrition — especially carbohydrates — has a substantial effect on blood glucose levels, so it’s important for people with T1D to plan their meals and corresponding insulin doses accordingly to optimize glycemic control. There is currently insufficient evidence to support one dietary pattern over another for managing T1D.[1] Consequently, the eating plan should be individualized based on personal preferences, socioeconomic status, and comorbidities, with the goal of achieving individual glycemic, cardiovascular, and body weight goals and preventing disease complications.[2] Additionally, eating plans should revolve around principles common among healthy dietary patterns, such as emphasizing nonstarchy vegetables, minimizing added sugars and refined grains, and choosing whole foods over ultraprocessed foods.[1]
How could diet affect type 1 diabetes?
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•Last Updated: May 16, 2025
Diet significantly affects blood glucose levels in people with type 1 diabetes (T1D), which necessitates careful meal planning and insulin dosing for optimal glycemic control. An individualized eating plan should focus on healthy dietary principles while considering personal preferences and health goals because there is no one-size-fits-all dietary pattern for managing T1D.