Chapter 21, Problem 21.116EP

Interpretation Introduction

Interpretation: The difference between the vitamin ${\text{D}}_{{\text{2}}_{}}$ and ${\text{D}}_{{\text{3}}_{}}$ on the basis of their source has to be stated.

Concept Introduction: There are four types of fat-soluble vitamins: Vitamin A, Vitamin D, Vitamin E and Vitamin K.  The most important forms of Vitamin D are Vitamin ${\text{D}}_{\text{2}}$ and Vitamin ${\text{D}}_{\text{3}}$.