Ash Wednesday: Fasting and Abstinence

Ash Wednesday and Good Friday are days of  fast and abstinence (Canon 1251).
Fridays of Lent are days of abstinence (Canon 1251).
 
Fasting binds all persons who have completed their 18th birthday through those who have completed their 59th year, unless prevented by poor health. On days of fast, one full meal is allowed. Two other meals sufficient to maintain strength, may be taken according to one's own needs. Eating between meals is not allowed although fluids may be taken.
 
Abstinence binds all persons who have completed their 14th birthday, unless prevented by poor health. On days of abstinence during Lent, the consumption of meat of mammals or fowl is not allowed. The Church strongly encourages the observance of Friday abstinence throughout the year, but failure to do so is not regarded as sinful.
 
Nevertheless, pastors of souls and parents are to take care that minors not bound by the law of fast and abstinence are also educated in a genuine sense of penance. (Canon 1252)
 
Lent is a penitential season and as such religious practice such as daily Mass, reception of the Sacrament of Penance, the devotion of the Stations of the Cross, works of charity & justice, and acts of self-denial are highly encouraged.