Wiktionary
vitamin j
n. (context obsolete English) choline
Usage examples of "vitamin j".
It also contains vitamin C, vitamin D, vitamin E, vitamin F, vitamin G, vitamin I, vitamin J, vitamin K, vitamin L, vitamin M, vitamin N, vitamin O, vitamin P, vitamin Q, vitamin R, vitamin T, vitamin U, vitamin V, vitamin W, vitamin X, vitamin Y, and, believe it or not, vitamin Z!