Clearly, from the list above, one could conclude that our bodies were created to naturally respond to periods of fasting and voluntarily deprivation.
So, too, are our spirits. Scripture is replete with examples and exhortations, to cite just a few:
Matthew 6:16-18 ESV
“And when you fast, do not look gloomy like the hypocrites, for they disfigure their faces that their fasting may be seen by others. Truly, I say to you, they have received their reward. But when you fast, anoint your head and wash your face, that your fasting may not be seen by others but by your Father who is in secret. And your Father who sees in secret will reward you.
Joel 2:12 ESV
“Yet even now,” declares the Lord, “return to me with all your heart, with fasting, with weeping, and with mourning;
Daniel 10:3 ESV
I ate no delicacies, no meat or wine entered my mouth, nor did I anoint myself at all, for the full three weeks.
Ezra 8:23 ESV
So we fasted and implored our God for this, and he listened to our entreaty.
Isaiah 58:6 ESV
“Is not this the fast that I choose: to loose the bonds of wickedness, to undo the straps of the yoke, to let the oppressed go free, and to break every yoke?
Acts 13:2 ESV
While they were worshiping the Lord and fasting, the Holy Spirit said, “Set apart for me Barnabas and Saul for the work to which I have called them.”
Acts 14:23 ESV
And when they had appointed elders for them in every church, with prayer and fasting they committed them to the Lord in whom they had believed.
Exodus 34:28 ESV
So he was there with the Lord forty days and forty nights. He neither ate bread nor drank water. And he wrote on the tablets the words of the covenant, the Ten Commandments.
Esther 4:16 ESV
“Go, gather all the Jews to be found in Susa, and hold a fast on my behalf, and do not eat or drink for three days, night or day. I and my young women will also fast as you do. Then I will go to the king, though it is against the law, and if I perish, I perish.”
Luke 2:37 ESV
And then as a widow until she was eighty-four. She did not depart from the temple, worshiping with fasting and prayer night and day.
Psalm 35:13 ESV
But I, when they were sick— I wore sackcloth; I afflicted myself with fasting; I prayed with head bowed on my chest.
Luke 4:2 ESV
For forty days, being tempted by the devil. And he ate nothing during those days. And when they were ended, he was hungry.
Fasting helps us get closer to the Lord, hear His voice, and discern His direction(s) for our lives by the removal of distractions and noise, as well as helping us focus on Him more than other parts of His Creation, including (but not exclusively) food.