Cabbage don't have storage roots or tubers, they are not a root vegetable. All the energy goes into producing flowers and seeds, if they are not cut down before.
Cabbage
They store it in the form of starch in their leaves!
This is simple biology and can be found in many books- such plants as lettuce, cabbage and spinach store food in their leaves and it's as simple as that!!!
A cabbage is a producer because it can make food with its green chlorophyll and it is a plant!
mostly in the roots but each plant has different methods
Plants store extra energy as starch, which can come in a wide range of forms. Potato plants store them in big underground tubers that we know as the edible vegetable, as do carrots, parsnips, turnips, etc. Apples, tomatoes, grapes and oranges are all other examples of energy storage sites. You may realise that these often correlate with the plant's seed location/vessel, for obvious reasons.
Dahlia store food in their tubers.
seed
Seeds store it in the endosperm.
It's someone that only eat local food like if there town doesn't plant cabbage they won't eat cabbage. So locavore don't eat imported food maybe like chocolate.
embryo
Leaves