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. 2019 Mar 12;15(3):41. doi: 10.1007/s11306-019-1493-6

Fig. 1.

Fig. 1

In terms of metabolites, food is a very complex material. Plant, animal and microbial materials cannot only be directly consumed but also often after highly-influential processing steps. Here the main sources of food metabolites are given which together constitute the food metabolome (modified from Johanningsmeier et al. 2016)