Why do my hands feel oily after eating even though I did not touch any food?

Your hands produce oil to keep them from getting dry. Some people produse more than others. If it really bothers you ask a doctor if the is any cream or something you can use to make the oil lessen.

It means you have some sort of digestion problem, or the food you wat is inadequent for you.
This one is a classic for a chinese medicine practitioner – these syndroms are very well known in chinese med. though in western med. they usually aren’t.

Maybe you don’t use enough lotion! Try using some gentle lotion!