Fasting

“In Old Testament times mandatory fasting was uncommon. The Mosaic Law called for Israelites to fast on only one day of the year—on the great Day of Atonement (Leviticus 16:29; 23:27).”

“In the New Testament, Paul wrote, ‘Do not let anyone judge you by what you eat or drink. . . .’ (Colossians 2:16). When Jesus completed his redeeming work and abolished the ceremonial laws, the number of required fasting days for God’s people decreased from one to zero.”

The quotations above are from an article in Forward in Christ that addressed fasting. This link will give you access to the complete article.