Medawar Evelyn, Zedler Marie, de Biasi Larissa, Villringer Arno, Witte A Veronica
Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany.
NPJ Sci Food. 2023 Jan 3;7(1):1. doi: 10.1038/s41538-022-00176-w.
Adopting plant-based diets high in fiber may reduce global warming and obesity prevalence. Physiological and psychological determinants of plant-based food intake remain unclear. As fiber has been linked with improved gut-brain signaling, we hypothesized that a single plant-based (vegetarian and vegan) compared to an animal-based (animal flesh) meal, would induce higher satiety, higher mood and less stress. In three large-scale smartphone-based studies, adults (n = 16,379) ranked satiety and mood before and after meal intake. Meal intake induced satiety and higher mood. Plant-based meal choices did not explain differences in post-meal hunger. Individuals choosing a plant-based meal reported slightly higher mood before and smaller mood increases after the meal compared to those choosing animal-based meals. Protein content marginally mediated post-meal satiety, while gender and taste ratings had a strong effect on satiety and mood in general. We could not detect the profound effects of plant-based vs. animal-based meals on satiety and mood.
采用富含纤维的植物性饮食可能会降低全球变暖以及肥胖症的患病率。植物性食物摄入的生理和心理决定因素仍不明确。由于纤维与改善肠道-大脑信号传导有关，我们推测，与动物性（动物肉类）餐食相比，单一的植物性（素食和纯素食）餐食会带来更高的饱腹感、更好的情绪以及更低的压力。在三项基于智能手机的大规模研究中，成年人（n = 16379）在进餐前后对饱腹感和情绪进行了评分。进餐会带来饱腹感和更好的情绪。植物性餐食选择并不能解释餐后饥饿感的差异。与选择动物性餐食的人相比，选择植物性餐食的人在进餐前情绪略高，而进餐后情绪升高幅度较小。蛋白质含量对餐后饱腹感有轻微的介导作用，而性别和口味评分总体上对饱腹感和情绪有强烈影响。我们无法检测到植物性餐食与动物性餐食对饱腹感和情绪的深远影响。
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