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. 2022 Feb 23;14(5):947. doi: 10.3390/nu14050947

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Concentration (expressed as a percentage of the recommendation for adults outlined in Table 2) and standardized ileal digestibility (SID) for histidine (●), isoleucine (●), leucine (●), lysine (●), sulphur containing amino acids (●), aromatic amino acids (●), threonine (●), tryptophan (●) and valine (●) in pork belly; - - -: adequacy marker for amino acid requirement; : cut-off for actual requirement as a combination of amino acid content and digestibility of the respective indispensable amino acid; (A; data from [76]), skim milk powder (B; data from [57]), soy flour (C; data from [57]), rice (D; data from [80]), cooked peas (E; data from [87]) and maize (F; data from [80]).

Inline graphic — Concentration (expressed as a percentage of the recommendation for adults outlined in Table 2) and standardized ileal digestibility (SID) for histidine (●), isoleucine (●), leucine (●), lysine (●), sulphur containing amino acids (●), aromatic amino acids (●), threonine (●), tryptophan (●) and valine (●) in pork belly; - - -: adequacy marker for amino acid requirement; : cut-off for actual requirement as a combination of amino acid content and digestibility of the respective indispensable amino acid; (A; data from [76]), skim milk powder (B; data from [57]), soy flour (C; data from [57]), rice (D; data from [80]), cooked peas (E; data from [87]) and maize (F; data from [80]).