| Source | Peptide/s | Reference |
| Whey | IW, VYPFPG, IPA, FP, VYP | [28, 29] | Milk | IPP, VPP | [28, 30, 31] | Rice | TQVY | [28] | Dried Bunito | LKPNM, LKP, IKP, IWH, IW, LYP | [29–31] | αS 1-Casein | FFVAPFPGVFGK, IAK, YAKPVA, WQVLPNAVPAK | [30] | Bovine casein | MKP, GPL, GPV | [29, 30] | Egg | YPI, IRW, RADHPFL, YAEERYPIL | [29, 30] | Soybean | VLIVP, IFL, WL | [29] | Royal jelly | IY, VY, IVY | [29] | Mushroom | GEP | [29] | Canola | VSV, FL | [29] | Alaska Pollack | FGASTRGA | [29] | Chicken | GFXGTXGLXGF (X-hydroxyproline) | [29] | Spinach | MRWRD, MRW, LRIPVA, IAYKPAG | [29] | Wheat germ | IVY | [29] | Mung bean | KDYRL, VTPALR, KLPAGTLF | [29] | Marine shrimp | FCVLRP, IFVPAF, KPPETV | [29] |
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