At other times, it's hard to let go of food, but when fasting it's easier and you don't think about eating praise be to Allah.
If you'd like to read about the benefits of fasting, here's a good article.
The fast provides us with many benefits and is full of wisdom. It purifies and strengthens our hearts. It rids us of our baser tendencies like exuberance, arrogance, and stinginess. It reinforces our good traits like fortitude, clemency, and generosity. It supports us in our inner struggle to please Allah and attain nearness to Him.
Fasting teaches us about ourselves and our needs. It shows us how weak we are and how truly dependent we are upon our Lord. It shows us how much Allah has blessed us. We are reminded of our brethren those who are less fortunate and are inspired to treat them well. We are compelled to thank Allah and to use the blessings He has provided us in obedience to Him.
Allah draws attention to these many benefits when he says: “O you who believe, fasting is prescribed for you as it has been prescribed for those who were before you that you may learn self-restraint.” [Sûrah al-Baqarah: 183]
In this verse, Allah makes it clear that he prescribed fasting in order to purify us. Fasting is a means for us to learn self-restraint and cultivate our piety. Piety is to observe the commandments and prohibitions of Allah and His Messenger (peace be upon him) sincerely out of our love and reverence for Allah, and to avoid His punishment and anger.
Fasting is a great act of piety in itself and a great means of increasing our piety in all aspects of our religious and worldly lives.
When the angel Gabriel asked the Prophet (peace be upon him) about Islam, he replied: “Islam is to bear witness that there is no God but Allah and that Muhammad is the Messenger of Allah, to establish prayer, to pay charity, to fast the month of Ramadan, and to perform pilgrimage to the House if you are able to make the journey.” [Sunan al-Tirmidhî]
Gabriel then said: “You have spoken the truth.” Then he said: “Tell me about faith.”
Allah’s Messenger (peace be upon him) replied: “It is to believe in Allah, His angels, His books, His Messengers, the Last Day, and divine decree, both the good and bad of it.”
He said: “You have spoken the truth. Tell me about excellence in faith.”
Allah’s Messenger replied: “It is to worship Allah as though you see Him, and though you do not see Him, you know that He sees you.”
He said: “You have spoken the truth. [Sahîh Muslim]
Once Mu`âdh b. Jabal said to the Prophet (peace be upon him): “Tell me about some deed that will admit me into Paradise and distance me from the Hellfire.”
The Prophet (peace be upon him) replied: “You have asked about something great, yet it is very simple for one for whom Allah makes it easy. Worship Allah and do not associate anything with him in worship. Establish prater, pay Zakâh, fast the month of Ramadan, and undertake the pilgrimage to the House if you are able to do so.” Then the Prophet (peace be upon him added: “Should I not inform you about the gates of goodness? Fasting is Paradise. Charity extinguishes sins like water extinguishes fire.” [Sunan al-Tirmidhî]
Fasting is a most virtuous act with a reward commensurate with its greatness. This is especially true in Ramadan, since Allah has made fasting therein an obligation upon the believers and a means of their attaining salvation.
The Prophet (peace be upon him) said: “Every deed of the human being is for himself and its reward is multiplied for him from ten to seven hundred times. Allah says: ‘Except for fasting, for truly it is for Me and I alone will reward it, for verily he abandoned his desires, his food, and his drink for my sake.’ The one who fasts experiences two joys, one upon breaking his fast and one when he meets his Lord. Surely the breath of the fasting person is sweeter to Allah than the fragrance of musk.” [Sahîh al-Bukhârî and Sahîh Muslim]
We need to safeguard the blessings of our fasts from our sins and our shortcomings. The Prophet (peace be upon him) said: “Whoever does not leave off false speech and false conduct, Allah has no need of his leaving off food and drink.” [Sahîh al-Bukhârî]
The Prophet (peace be upon him) said: “When any one of you is observing the fast for the day, he should neither indulge in obscene language nor raise his voice. If someone insults him or quarrels with him, he should say: ‘I am fasting’.” [Sahîh al-Bukhârî and Sahîh Muslim]