Excess hunger corresponds to the solar chakra - it indicates both a lack of will power and an over active stomach.
It may also correspond to strong will power if the hunger is a result of an intense physical workout program or some other fashion by which you are expending alot of energy.
I have found in the last that excess hunger can be combatted with pineal gland meditation, as this serves to provide a rewarding sensation rather than eating however if you are hungry because your body needs food then I would suggest that you eat.
If you are experiencing vexation, restlessness, bleeding gums or gym ulcers, bad breath, thirst for cold drinks and cold foods and feelings of heat then it may be stomach fire which can be cleared with certain herbs.