【はじめに】軽症の2型糖尿病患者に対するFreeStyleリブレ（リブレ）を用いた認知行動療法の最適な方法は確立していない。

【方法】リブレ装着時，1週間目，2週間目の3回来院してもらい振り返りを行った。

【症例1】76歳女性。BMI（body mass index）21.5kg/m²。罹病歴2年。健診でHbA1c 7.2％を指摘され来院しリブレを装着した。1週目のAGP解析で特に食後の高血糖が目立ったため糖質の減量と食後の散歩を指導したところ，2週目には推定HbA1c 6.0％まで改善を認めた。

【症例2】75歳男性。BMI 22kg/m²。罹病歴20年。多剤使用するもHbA1c 8.6％と血糖コントロール不良のためリブレを装着した。1週間目の結果から夕食の内容を見直すように指導したところ，2週目には推定HbA1c 6.5％まで改善を認めた。

【考察】リブレを利用して隔週で具体的な指導を行うことが良好な行動変容に有用だと考えられた。

【Introduction】The optimal technique for cognitive behavioral therapy among patients with mild type 2 diabetes using the FreeStyle Libre (the Libre) has yet to be established. 【Method】 Patients were asked to visit the clinic three times (upon wearing the Libre, the first week, and the second week), after which we reviewed their progress. 【Patient 1】A 76-year-old female; BMI: 21.5, duration of diabetes: 2 years. She visited the clinic following a medical examination revealing a HbA1c level of 7.2％. Thereafter, she began wearing the Libre. High blood glucose after meals was noted upon Ambulatory Glucose Profile (AGP) analysis the first week, but once we instructed her to reduce her carbohydrate intake and walk after eating, we confirmed improvement of her estimated HbA1c level to 6.0％ the second week. 【Patient 2】A 75-year-old male; BMI: 22, duration of diabetes: 20 years. Although he was taking multiple drugs, his HbA1c level was 8.6％, suggesting poor glycemic control. Consequently, he began wearing the Libre. Once we instructed him to review his dinner content based on the results of the first week, his HbA1c improved to an estimated level of 6.5％. 【Discussion】Giving specific instructions based on meal content using the Libre bi-weekly was considered to be useful in making good behavioral modifications.