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. Author manuscript; available in PMC: 2025 Sep 1.
Published in final edited form as: Nat Metab. 2025 Feb 18;7(3):617–630. doi: 10.1038/s42255-025-01220-1

Fig. 1 ∣. Constructing a metagenomic food database.

Fig. 1 ∣

a, Illustration of the search strategy used to map food items to assemblies and their connection to nutrient content. b, Assembly size for the identified food-related organisms. Titles denote the database yielding the hit (GenBank, complete genomes; Nucleotide Database, partial assemblies). Boxplots show 25%, 50% and 75% quantiles; the centre denotes the median and whiskers extend to the smallest and largest data points within 1.5 interquartile ranges. c, Number of food organisms matched and the respective taxonomic rank where the match was found. d, Phylogenetic tree of the identified food organism assemblies, generated using UPGMA on estimated average nucleotide identity (estimated using MASH). Coloured circles denote the phylum, symbols indicate the dominant (that is, the most common, least-processed in FOODB) food preparation type, filled rectangles show macronutrient composition per 100 g of biomass and black bars show the energy content of individual food-assembly pairings per 100 g of biomass.