栄養素の摂取パターンとイライラ性腸症候群の関係:多センター症例対照研究
E Fazeli Moghadam1, M Samadi2, S Mohammadi1
1Nutritional Health Research Center, Nutrition, School of Health and Nutrition Lorestan University of Medical Sciences Khorramabad Iran.
Food science & nutrition
|August 22, 2025
まとめ
抗酸化物質と繊維に富んだ食生活は 刺激性腸症候群 (IBS) の発症率が低いと関連しています この研究では 栄養素の摂取パターンが 大人のIBSの管理に 極めて重要であることが示されています
科学分野:
- 栄養学
- 胃腸内科
- 公衆衛生
背景:
- 刺激性腸症候群 (IBS) は,食事に関連した一般的な胃腸疾患です.
- しかし,特定の栄養素ベースの食事パターンとIBSとの関連は,まだ十分に研究されていません.
- 栄養素摂取パターンの調査はIBSの病因を理解するための新しいアプローチを提供します.
研究 の 目的:
- 栄養素に基づく食事パターンとIBSの流行の関係を調べる
- 成人集団でIBSを発症する確率が低下する特定の栄養素パターンを特定する.
- IBSのリスクにおける 抗酸化物質,繊維,砂糖の役割を調べる
主な方法:
- 317人のIBS患者と601人の健康な対照群を対象とした多センター症例対照研究 (2021-2023年).
- 食事習慣は168項目の食品頻度アンケート (FFQ) を用いて評価された.
- 栄養素パターンが特定され,混同因子を調整して,IBSとの関連を分析するためにロジスティック回帰が使用されました.
主要な成果:
- 2つの異なる栄養素パターンがIBSの確率を下げることに有意に関連していた.パターンI (β-カロチン,ビタミンA,C,Eなどの抗酸化物質が豊富) とパターンII (繊維,グルコース,フルクトース,マルトースが豊富).
- パターンIへのより高い順守は,0. 75のオッズ比 (OR) (95%CI 0. 62- 0. 92,p=0. 00) を示した.
- パターンIIのより高い遵守は,0. 52のOR (95%CI 0. 42- 0. 64,p=0. 00) を示した.
- 第三のパターンは,糖質とカフェインが高く,IBSと有意な関連性を示さなかった (OR 0. 95,95%CI 0. 80~1. 12,p>0. 05).
結論:
- 抗酸化物質と繊維に富んだ栄養素のパターンは 刺激性腸症候群のリスクを減らすと関連しています
- 抗酸化物質に富んだ食品と繊維の摂取を増やすことを中心とした食事の介入は,IBSの予防に有益である可能性があります.
- これらの栄養パターンをIBSと結びつけるメカニズムを明らかにするためにさらなる研究が必要である.
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