What is the empirical formula for vegetable oil or for normal oil?

There is no single formula for oil. Vegetable oil consists of mainly of lipids that are composed of glycerol+3fatty acids. The Fatty acid composition varies. 78% of the fatty acids in olive oil are oleic acid C18H34O2.

Therefore a large fraction of the lipids consists of

C57H107O6.

This must be the most inconvenient form of describing a fat.

There isn't one for either. Vegetable oil molecules are glycerol joined to three fatty acid molecules, which are of various lengths according to the type of oil. Mineral oil is a mixture of compounds of the empirical formula CnH2n+1.

Normally i would just say fruit, but i think both. I really like the sugariness of the fruits but i love the essence and kick the vegetables bring

There are many healthy fruits and vegetables. Fresh vegetables like broccoli and kale contain calcium and are packed with fiber.

Vegetable oil is a complex mixture.