The shebakia is not necessary for fasting. You should be devout and come out in good health and with weight loss, because fasting every year purifies people from toxins, fats, sins, and grants forgiveness, God willing.
ﻣﺎﺷﻲ ﺿﺮﻭﺭﻳﺔ ﺍﻟﺸﺒﺎﻛﻴﺔ ﺍﻟﺼﻮﻡ ﺧﺎﺻﻚ ﺗﺨﺸﻊ ﻭﺗﺨﺮﺝ ﻣﻦ ﺑﺼﺤﺔ ﺟﻴﺪﺓ ﻭﻧﻘﺺ ﻓﻲ ﺍﻟﻮﺯﻥ ﻻﻥ ﺍﻟﺼﻴﺎﻡ ﻓﻲ ﻛﻞ ﺳﻨﺔ ﺍﻟﺒﺸﺮ ﻳﺘﺼﻔﻰ ﻣﻦ ﺍﻟﺴﻤﻮﻡ ﻭﺍﻟﺪﻫﻮﻥ ﻭﺍﻟﺪﻧﻮﺏ ﻭﺍﻟﻤﻐﻔﺮﺓ ﺑﺎﺩﻥ ﷲ