Itabashi CampusIn a joint study by Professor Ohkubo and others, it was revealed that people who have low blood sugar levels one hour after a glucose load have fewer illnesses and live longer.

On Friday, June 13, 2025, Takayoshi Okubo, Professor, Chair of the Department of Hygiene and Public Health, School of Medicine, Teikyo University, Internal Medicine Department of Diabetes Metabolism and Endocrinology, Graduate School Graduate School of Medicine, Tohoku University Professor Internal Medicine In joint research with Dr. Junta Imai and others, We analyzed the data of the glucose tolerance test of the Osako study conducted on local residents in Osako Town, Iwate Prefecture, and found that low blood glucose levels for 1 hour after glucose loading are less sick and longer life.

It is known that suppressing the onset of diabetes reduces the risk of death, but it was unclear whether there was a range of blood glucose levels considered "normal" before the onset of diabetes that could lead to a reduced risk of death. The results of this data analysis revealed that even among people diagnosed as normal, the group with blood glucose levels of less than 170 mg/dl one hour after glucose loading had a lower mortality rate than the group with blood glucose levels of 170 mg/dl or higher. Furthermore, it was found that this group had significantly fewer deaths from heart disease and malignant tumors.
This study revealed that there is a range of normal blood sugar levels that can lead to a reduced risk of death, and it is believed that early action to address post-meal blood sugar rises can prevent the onset of heart disease and malignant tumors and extend life expectancy.

The results of this research were published in the online version of PNAS Nexus on Friday, June 13, 2025.

Read the press release here
For more information about Professor Okubo, click here
Read the published paper here (in English)

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