Yes

And Jesus said to them, "The attendants of the bridegroom cannot mourn as long as the bridegroom is with them, can they? But the days will come when the bridegroom is taken away from them, and then they will fast." Matthew 9:15 NAS
"Behold, you fast for contention and strife and to strike with a wicked fist. You do not fast like you do today to make your voice heard on high. "Is it a fast like this which I choose, a day for a man to humble himself? Is it for bowing one's head like a reed, And for spreading out sackcloth and ashes as a bed? Will you call this a fast, even an acceptable day to the LORD? "Is this not the fast which I choose, To loosen the bonds of wickedness, To undo the bands of the yoke, And to let the oppressed go free, And break every yoke? "Is it not to divide your bread with the hungry, And bring the homeless poor into the house; When you see the naked, to cover him; And not to hide yourself from your own flesh? "Then your light will break out like the dawn, And your recovery will speedily spring forth; And your righteousness will go before you; The glory of the LORD will be your rear guard."Then you will call, and the LORD will answer; You will cry, and He will say, 'Here I am.' If you remove the yoke from your midst, The pointing of the finger, and speaking wickedness, And if you give yourself to the hungry, And satisfy the desire of the afflicted, Then your light will rise in darkness, And your gloom will become like midday.
"And the LORD will continually guide you, And satisfy your desire in scorched places, And give strength to your bones; And you will be like a watered garden, And like a spring of water whose waters do not fail. Isaiah 58:4-11 NAS
I do it to discipline my body and mind, to concentrate on prayer and the things of God more intently.
For a prolonged fast, I give up red meat.... hamburger, steak, ham etc. and eat fish or something for dinner on the Lord's day.
humbly,
Cam