Lumbricus terrestris PROVITAMIN-D is 170 parts/1000 of total sterols.
Data from A. Windaus, Nachr. Ges. Wiss. Göttingen, Math.physik. Kl. Fachgruppe III 185 (1936).
A. E. Gillam and I. M. Heilbron, Biochem. J. 30, 1235 (1936).
J. van der Vliet, Chem. Weekblad 39, 271 (1942).
regards,
