「fibermaxxing」と呼ばれる食事トレンドが、全体的な健康を支えるために推奨される1日の食物繊維摂取量を満たすか超えることを人々に促している。研究者らは、適切な食物繊維摂取をより良い消化、慢性疾患リスクの低減、腸内微生物叢の強化と関連づけている。タフツ大学のジェニファー・リー氏が、食事により食物繊維をより多く取り入れる利点とガイドラインを説明する。
「fibermaxxing」という用語は今年、ソーシャルメディアやメディアで人気を博し、体重に基づく推奨される1日の食物繊維量を少なくとも摂取する習慣を指す。食物繊維は消化、有益な腸内微生物の栄養源となり、血糖値とコレステロールレベルの調整に重要な役割を果たす。研究では、十分な食物繊維摂取が肥満、糖尿病、大腸がん、乳がん、前立腺がんなどのリスクを低減すると関連づけられている。
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Researchers at Nagoya University report that two common gut microbes can work together to break down the colon’s protective mucus layer, leaving stool dry and difficult to pass—an effect that standard laxatives may not address. The team also found higher levels of these bacteria in people with Parkinson’s disease, who often experience constipation decades before motor symptoms, and showed in mice that disabling a key bacterial enzyme prevented constipation.
A comprehensive study of over 3,500 adults has found that consuming more dietary fibre is associated with increased time in deep sleep. Participants who ate above-average amounts of fibre spent more time in restorative sleep stages and had lower heart rates at night. Greater variety in plant-based foods also helped some fall asleep faster.
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The flexitarian diet, a plant-focused eating pattern with occasional meat, offers potential advantages for gut health, according to gastroenterologists. This approach emphasizes vegetables, whole grains, and fermented foods while limiting processed items. Experts highlight its science-backed flexibility as a sustainable lifestyle choice.
Researchers at the Massachusetts Institute of Technology report that intelectin-2, a carbohydrate-binding lectin found in the gastrointestinal tract, can both crosslink mucus components to reinforce the gut’s protective barrier and bind certain bacteria, restricting their growth and reducing viability—findings that may inform future approaches to drug-resistant infections and inflammatory bowel disease.
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Building on warnings like the 2025 Lancet series, researchers link ultra-processed foods to health issues including obesity and cancer, though mostly via correlations. A landmark 2019 trial provides the strongest causal evidence by showing overeating on such diets. Debates continue on regulations amid concerns over practicality.