Composition of vitamin D in medium-chain triglycerides and use thereof in delivering a nutritional or therapeutic amount of vitamin D to a human being, particularly, an infant. The compositions are applied to an object, such as skin or in the case of an infant to a woman's nipple or pacifier from which the infant sucks off the composition. The method provides a more suitable, safer and efficient way of providing the human being with vitamin D. The compositions further comprise a free fatty acid and/or monoglyceride, oxidant preservative and, optionally, other vitamins.
