Nutrient concentrations in food display universal behaviour.
Nutrient concentrations in food display universal behaviour.
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食物中的营养浓度表现出普遍的行为。
DOI：
10.1038/s43016-022-00511-0
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发表时间：
2022
期刊：
影响因子：
23.2
通讯作者：
Barabási,Albert-László
中科院分区：
文献类型：
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作者：
Menichetti,Giulia;Barabási,Albert-László
世界各地的广泛计划都在努力测量和编目食物的成分。在这里，我们分析了整个美国食品供应的营养成分，并表明每种营养素的浓度遵循一个通用的单参数标度定律，准确地捕捉了8个数量级的营养成分变化。我们表明，这种普遍性植根于负责营养调节的代谢途径所遵循的生化约束，使我们能够确认经验观察到的标度定律，并预测其与数据一致的变异性。我们认为，食物中的天然营养变化可以定量形式化。这为计算食品成分数据库中的缺失值提供了数学基础，并为定量理解食品加工对营养平衡和健康影响的影响铺平了道路。
Extensive programmes around the world endeavour to measure and catalogue the composition of food. Here we analyse the nutrient content of the full US food supply and show that the concentration of each nutrient follows a universal single-parameter scaling law that accurately captures the eight orders of magnitude in nutrient content variability. We show that the universality is rooted in the biochemical constraints obeyed by the metabolic pathways responsible for nutrient modulation, allowing us to confirm the empirically observed scaling law and to predict its variability in agreement with the data. We propose that the natural nutrient variability in food can be quantitatively formalized. This provides a mathematical rationale for imputing missing values in food composition databases and paves the way towards a quantitative understanding of the impact of food processing on nutrient balance and health effects.