The reasons are as follows

First, as long as the intake of carotene within a period of time after the intake of food containing fat, but also to promote the absorption of carotene, because the carotene stays in the mucous membrane of the small intestine above the combination of the new fat and fat microspheres to be absorbed.

Secondly, the most nutritious substance in carrots is carotene, which is a fat-soluble vitamin, and its absorption requires the formation of fat microspheres with fat to be absorbed by the small intestine.

Third: As long as the intake of carotene followed by a period of time intake of food containing fat, can also promote the absorption of carotene, because the carotene stays in the mucous membrane of the small intestine above the formation of fat microspheres can be absorbed with the combination of the new fat in.

So, carrots don't have to be sauteed. How to get the best out of carrots is simply to consume foods containing fat in the same meal or for a certain period of time will help in the absorption of carotenoids.