
日本人の食事の質は思春期から20代前半にかけて最も低く、年齢とともに向上することが東大研究グループの調査で判明。収入や教育水準、朝食欠食などが関連しており、若年期からの食習慣改善の重要性が指摘されている。
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東大研究グループが2016~20年に32都道府県の1~79歳4455人を調査し、食事全体のバランスを評価した。
日本人の食事の質は、男女いずれも思春期から20代前半にかけて最も低く、中高年層では比較的高いことが21日までに、東京大の研究グループの調査で分かった。収入や教育水準、朝食を抜く習慣などが関連しており、研究グループは「若い時期から良好な食習慣を身に付け、維持することが長期的な健康の維持につながる可能性がある」としている。
大久保公美・東大大学院特任教授らの研究グループは2016~20年、32都道府県の1~79歳の日本人4455人を調査。季節を変えて各2日ずつ、計8日間の食事内容を記録してもらい、食事全体のバランスを二つの指標で評価した。
野菜や果物、乳製品など食品を中心とした指標は男性が23歳ごろ、女性が16歳ごろに最も低い値を示した。ビタミンやたんぱく質といった栄養素の評価指標では男女とも24歳前後が最低値だった。一方、いずれも年齢が上がるにつれてスコアが高くなる傾向が見られた。
また、1~17歳では世帯収入や保護者の教育水準が高いほど食事の質が良好な傾向が見られ、成人でも収入や本人の教育水準との関連が見られた。朝食を抜く習慣や喫煙も食事の質の低さと関連していた。
研究グループは、若年層で食事の質が低い背景には、進学や就職などに伴う生活環境の変化が関係している可能性を指摘。大久保特任教授は「学校や職場などで、健康的な食事の選び方を学ぶ機会を設けるとともに、食堂やコンビニ、外食店などで栄養バランスの良い食事を手頃な価格で選べる環境を整えることが重要だ」と話している。論文は栄養学の国際専門誌に掲載された。

The Ministry of Health, Labor and Welfare has requested the suspension of new administration of Tabneos, a vasculitis treatment drug sold by Kissei Pharmaceutical Co., Ltd., after 23 patients died due to liver dysfunction. Administrative sanctions, including revocation of approval, will be considered within the year as there are doubts about the reliability of the approval application materials.

The National Consumer Affairs Center of Japan is warning of ``handlebar injuries,'' where children hit their abdomens with bicycle handlebars. From April 2021 to July 2026, there were 39 accidents involving people under the age of 15, and even seemingly minor injuries can result in serious internal injuries such as pancreatic damage. It is particularly common among children aged 6 to 14 and 9 to 10, and children with soft ribs are unable to protect their internal organs, making them more susceptible to serious injuries.

A 2025 survey by the Japan Sports Agency revealed that the disparity in physical strength based on whether people belong to sports clubs or clubs is widening, especially among the younger generation. Among 19-year-old boys, the difference increased from 6.29 points in 2001 to 8.45 points, and the decline in physical fitness among non-members was noticeable.
A research team led by the Institute of Medical Science at the University of Tokyo conducted whole-genome analysis of 200 Japanese patients with colorectal cancer and discovered that colibactin, a toxin produced by intestinal bacteria, was involved in about half of the cases. In particular, mutation signatures were observed in 70% of young people under the age of 40, suggesting that DNA damage had accumulated since childhood.

A female employee at a plague control institute died in the Irkutsk Oblast in Eastern Siberia, Russia, and rumors spread that she had been infected, but Russian authorities are trying to put out the fire by claiming that no plague bacteria was detected in her samples.

A team including Tokyo University of Science has revealed through mouse experiments that the decline in cognitive function due to continued high-calorie diet is caused by abnormalities in the synapses of nerve cells in the brain. It is said that a decrease in the PQBP1 protein is involved, and improvement has been seen with therapeutic drugs.