How Did the Roman Catholic Tradition of Eating Fish on Fridays Begin?

Updated on March 22, 2017
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Chuck is a former Vietnam Era Air Navigator with degrees in History & Economics. Areas of intrest include aviation & military history.

The Practice Began in the Early Days of the Church

The practice of fasting and abstaining from certain foods is an ancient one that has been practiced by many religions.

In the early years of Christianity in Europe, the Church instituted the practice of requiring the faithful to abstain from eating meat on Fridays in memory of Christ's death. During the season of Lent, the Church also called for abstaining from eating meat on Wednesdays as well as on Fridays.

While the Church called upon all of the adult faithful to abstain from meat on these days, the rule really only applied to the rich as the poor generally could not afford meat. As many vegetarians and environmentalists point out, producing meat is a more costly way of providing the nutrition humans need as it takes time for the animals to grow to maturity and, during this period of growth, they are consuming plant life.

Humans, being omnivorous, are able to consume and digest both plant and animal life which means it is more efficient, from a production standpoint, to produce and eat the plant life directly rather than produce it to feed to animals and then eating the animals.

There Was No Requirement That People Eat Fish

It is important to note that the Church's directive called for abstaining from eating meat and did not mention, let alone require or even encourage, the eating of fish on Fridays.

The Church's objective in calling on the faithful to abstain from eating meat on certain days was to provide them with a simple exercise to aid in their spiritual development.

Human nature being what it is, people usually react to new rules by looking for loopholes which enable them to comply with the letter of the rule but not necessarily the spirit of the rule.

In its abstinence rule, the Church simply required its members to abstain from eating meat with the idea that people would limit their food to vegetables and grains on Fridays.

Meat is generally considered to be the flesh of warm-blooded land animals. Fish, on the other hand, are cold blooded water dwelling creatures. Using this technicality, people began consuming the flesh of fish in place of the flesh of animals on days of abstinence.

Fish thus became a part of the culture of the Catholic Church.

People, of course, had been eating fish since the beginning of time, but the consumption of fish was limited to areas near waters where fish were plentiful.

St. Peter and some of the other Apostles and disciples of Jesus were fishermen. The New Testament describes Christ both accompanying them on a fishing trip and eating fish with them.

However, this was due to the fact that they lived next to the Sea of Galilee which made fish a common food in that area.

So, while the eating of fish had nothing to do with the fact that some of the Apostles were fishermen, the abstinence rule did began the slow process of making fish more common among the Catholic population in general and this slowly lead to some other economic and cultural changes in society.

Economic Growth Caused More People to Observe the Abstinence Rule

As Europe emerged from the Middle Ages and began growing economically, a middle class began to form. While lacking noble titles and aristocratic ancestors, this group became the economic equals of the nobility and their rising incomes meant that the middle class could now afford to eat meat regularly as well.

This, of course made them consumers of fish as they now had to follow the abstinence rules of their faith. The Industrial Revolution caused the middle and working class to expand further as wages for factory workers began to rise.

The economic growth produced by the Industrial Revolution attracted swarms of immigrants to North America.

Many of these immigrants came from Catholic countries in southern and eastern Europe as well as numerous immigrants from from heavily Catholic Ireland and Germany. As the incomes of these immigrants rose, they too found themselves able to afford more meat in their diets and, as a consequence found themselves substituting fish for meat on Fridays, just like the aristocratic lords and ladies in Medieval Europe, in order to comply with the rules of their faith.

Soon fish consumption by people living in America's interior cities like Louisville, Kentucky, Milwaukee Wisconsin, St. Louis Missouri and others equaled that of areas along the Atlantic coast whose fishermen ended up supplying much of the cod and haddock sold in the interior.

The Friday Night Fish Fry

This increased consumption of fish in the industrial cities of the interior soon gave rise to the tradition of the Friday night Fish Fry, a custom that can still be found to this day in many of these cities.

With the advent of the five day workweek, Friday became the end of the workweek as well as the anniversary of the day on which Our Lord was crucified.

Soon restaurants began offering Friday fish fry as a relatively inexpensive way for working and middle class Catholics to dine out with their families while abiding by the precepts of their faith.

The restaurants were soon joined by local Catholic Churches, American Legion and VFW Halls and other organizations which found inexpensive fish fry dinners to be a good way for their members and others to get together and socialize while, at the same time, raising money for the churches or organizations.

Vatican II and a Relaxation of the Dietary Rules

Things began to change following the Second Vatican Council which met from October 11, 1962 to December 8, 1965.

In early 1966 Pope Paul VI urged that the practice of fasting and abstinence be adapted to local economic conditions. Later that year the U.S. Conference of Catholic Bishops relaxed, but did not abolish, the rules on fasting and abstinence.

However, the media and much of the laity interpreted these actions as abolishing the Church's requirement that the faithful abstain from meat on Fridays during the year and on Wednesdays and Fridays during Lent.

Through the centuries the Church in Rome had required, as a general rule, that Catholics abstain from eating meat on Fridays during the year as well as on Wednesdays and Friday's during Lent.

However, there were exceptions to the general rule. Children under age 14, old people, pregnant women, people who were ill, the aged, travelers in certain circumstances, etc. were not required to follow the abstinence rule.

Further, as the Church grew and expanded beyond Western Europe and as society changed due to economic growth, the Church in Rome gave national Bishop's Conferences and even individual local Bishops the power to modify the rules to make them compatible with local customs.

Thus, in the United States, Catholics were allowed to eat meat on the Friday following Thanksgiving (which is always on Thursdays) in recognition of the fact that most households had a generous supply of leftover meat from the feast the day before. Similarly, whenever St. Patrick's Day (March 17th), a major Irish-American holiday which occurs during Lent, fell on a Wednesday or Friday, American Catholics were not required to follow the abstinence rule.

Finally, local bishops would provide dispensations to secular groups hosting a meal on a day when Catholics were required to abstain from eating meat. This was in recognition of the fact that America is a secular nation made up of people of different faiths and that Catholics are active participants in secular society.

Thus, whenever a secular organization with Catholics among its members planned an event that included a meal and fell on a day that the Catholic Church required its members to abstain from eating meat, the organizers simply requested a dispensation from the local bishop that would excuse Catholics attending the event from having to abstain from eating meat.

The Abstinence Rule Is Still in Effect

The actions by Pope Paul IV and the U.S. Catholic Conference of Bishops in 1966 relaxed but did not remove the Church's rule requiring Catholics to abstain from eating meat on Fridays.

However, in the confusion surrounding the relaxing of the abstinence rule led the vast majority of Catholics in the U.S. and elsewhere to stop abstaining from meat on Fridays.

In recent years the Church in the U.S. has managed to get many practicing Catholics to abstain from eating meat on Ash Wednesday and Fridays during Lent.

However, most either ignore or don't know that the Church continues to require that Catholics between the ages of 14 and 60 fast and abstain from eating meat on Ash Wednesday and Fridays during Lent. They should also either fast and abstain from meat one day a week or perform some act of charity and sacrifice once a week in place of fast and abstinence.

Questions & Answers

  • It is true that the Catholic church pushed the eating of fish on Fridays to help the fishing industry?

    First of all the Catholic Church didn't "push" the eating of fish on Fridays, the Church in the past required the faithful to abstain from eating meat on Fridays and, during the season of Lent, and on Wednesdays as well. Fish was an allowable substitute for meat on those days but eating fish was not required. When I was a freshman in college, an acquaintance from Latin America (I think she was from Panama) said that in her country Catholics were no longer required to abstain from eating meat on Fridays. When I checked with a priest, I was told that the Church had left the decision as to whether or not to forbid the eating of meat on Fridays up to the Bishop's Conference in each nation. I do remember when the rule was changed there were reports of fish industry trade groups supposedly having lobbied with Bishops to retain the rule

  • Is eating eggs acceptable on Fridays during Lent?

    As far as I know, there was never any rule in the Catholic Church against eating eggs on Fridays. I do remember one of my history instructors in college during a discussion about the Reformation citing some of the legal hair-splitting by canon lawyers, citing one dilemma which involved a person opening an egg on a Friday during the Middle Ages and finding a chicken embryo rather than egg inside. The question was, should he throw the embryo away thereby committing the sin of wasting food, or should he eat it thereby committing the sin of eating meat on Friday? There apparently was no agreed-upon answer but many hours were spent in that era debating this and other trivial questions such as how many angels could stand on the head of a pin.

  • I know practicing Catholics no longer abstain from eating meat on Fridays except during Lent. What is not totally clear is the “official” stance of the Church on this practice. Please advise?

    According to the website of the U.S. Catholic Conference of Bishops, American Catholics are required to abstain from eating meat on Ash Wednesday and Fridays during Lent.

© 2009 Chuck Nugent


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    • Chuck profile imageAUTHOR

      Chuck Nugent 

      11 months ago from Tucson, Arizona

      Rochelle - thank you for your interesting and informative comment.

    • Rochelle Frank profile image

      Rochelle Frank 

      11 months ago from California Gold Country

      Interesting history.

      Dietary rules and restrictions in religious practice sometimes seem arbitrary, but in certain times and places they had some credible reasons for physical as well as spiritual health.

      I always thought the practice of saying grace before meals was meant to to teach us that we should be aware that we need spiritual nourishment as well as physical. Bread and wine was also an everyday experience in the time of Christ. It was linked to the recognition of spiritual principles. I am not Catholic, but I understand the link.

    • Chuck profile imageAUTHOR

      Chuck Nugent 

      6 years ago from Tucson, Arizona

      Marie - thanks taking the time to comment. Thank you especially for your comments on whether or not violating the abstinence rule was a mortal sin. This had been brought up and debated somewhat in the comments earlier and your comments certainly help to clarify this isssue.

    • profile image


      6 years ago

      Fabulous and comprehensive. Much of what your article details is not known or understood by tons of American Catholics today, I read through waiting for some of the common misunderstandings or light slanders to pop up, not a jot, just solid info.

      Regarding whether eating meat on Friday would have been a mortal sin, in the Church for something to be a mortal sin it must be serious (usually the ten commandments are referenced), you must know it's a sin, and you must freely choose to commit the sin (can't be coerced into it). I can see eating meat falling into this category if someone, for example, purposefully ate meat even though he truly believed the Church directed him to abstain in following the will of God. Then that person wouldn't be damned for eating meat -- he'd be damned (if not repentant before death) because he was disavowing God himself, which is the definition of damned. But just forgetting and eating a hamburger? Venial at most. Personally, I think we had a few strains of Jansenism still running through the Church in the 50s in America and probably some Catholics were misinformed by priests in error, as happens today with other heresies.

    • Brian Weekes profile image

      Brian Weekes 

      7 years ago from Queensland, Australia

      I was raised a Catholic, though I now attend a different church.

      In Australia the only requirement that the Catholic Church has in regard to meat is that it not be consumed on Good Friday. (The Friday directly before Easter).

      This is accepted practice in the Catholic Church in Australia, and Catholics on a regular basis, can be seen at BBQ events on a Friday evening cooking a t-bone over a roaring fire.

    • Supplex profile image


      7 years ago

      Regarding a question of what would a Catholic Vegetarian eat, a Catholic vegetarian can eat for example, the blandest meal possible or just choose to do a penance.

      As of right now, fish on Fridays except for Good Friday and Lenten Fridays are not obligatory in the U.S., but traditional Catholics tend to abstain on Fridays and sometimes even Wednesdays.

    • eatingright profile image


      8 years ago

      That's an interesting historical perspective on why eating fish becomes the norm for Catholics on Fridays. I wonder what will a Catholic vegetarian eat on Fridays?

    • Joy56 profile image


      9 years ago

      this was a very interesting hub. We always had fish on friday at school, i hated it.

    • VintageTidbits profile image


      9 years ago

      Interesting and informative hub. My grandparents never ate meat on Fridays and we still eat fish on Fridays.

    • DixieMockingbird profile image

      Jan Charles 

      9 years ago from East Tennessee

      I love the history of food - and I thought your take was awesome!

    • ciidoctor profile image


      9 years ago

      very good hub

    • Merriweather profile image


      9 years ago

      Very interesting! The historical context is particularly enlightening.

    • Chuck profile imageAUTHOR

      Chuck Nugent 

      9 years ago from Tucson, Arizona

      Auntie M - good point. Thanks for sharing.

    • Auntie M profile image

      Auntie M 

      9 years ago

      It too was commented to me, being raised a Catholic and attending parochial school for 12 years, that the church made rule was directly created to boost the fishing industry of Italy. But, if one takes a moment they would realize that Italy is a peninsula and fish has always been a main part of its diet. There really was no need to boost an industry that already was doing well.

    • Tom Vogler profile image

      Tom Vogler 

      9 years ago from The Shenandoah Valley

      Thank you for doing this article. I think people would be more accepting of the Roman Catholic Church if they understood the reason behind the traditions and the teachings. You help provide that. Keep up the good work.

    • lrohner profile image


      10 years ago from USA

      Good Lord, my Mom passed away a few years ago at the tender age of 86. Throughout her entire life, she never, ever once ate meat on Fridays!

    • Chuck profile imageAUTHOR

      Chuck Nugent 

      10 years ago from Tucson, Arizona

      jkfrancis -

      Thanks for your comment clarifying that violating the no meat rule on Fridays was a mortal sin. I couldn't remember from catechism class just what this was and in my research on the Internet in writing the Hub did not clarify this either.

      Thanks again,


    • Chuck profile imageAUTHOR

      Chuck Nugent 

      10 years ago from Tucson, Arizona

      maven101 & Seabastian - Thanks for your comments.

      I had heard theories about helping the fish industry being a motive for this practice. However, not only was the eating of fish not mentioned in the rules surrounding this but the point was to get people to give something up and not to substitute one thing for another. Also, Orthodox Churches in the East came out with a similar rule about the same time and they were too far away for their fish consumption to benefit the Italian fishing industry which, as I stated in the article, was limited to people living by the sea who fished to augment the diets of themselves and their neighbors.

      Where economics came into this was in 1966 when the rule was changed. Here is a link to a Time Magazine article that I used in researching this Hub and you can see from this article that there were concerns about what the effect of removing this rule would have on the U.S. fishing industry:,9171,8...

      I also remember in the news media at that time that there were discussions and comments about the negative impact that the change in the abstinence rule would have on the U.S. fishing industry.

      However, the U.S. fishing industry in 1966 was a large industry that, as I pointed out in the article, sold fish to people in areas far from the sea, as well as one that consisted of large corporations with legions of professional lobbyists skilled in lobbying legislators in the political arena. And, as I recall, there was talk in the media speculating about the industry lobbying the Church not to make the change - but as I remember this was just speculation.

      I have also seen references to an economic study that was done after the change which showed that there was something like a 10% drop in seafood sales that could be attributed to the relaxing of the abstinence rules. However, I have not been able to find a copy of the study itself.

      Again, everything that I have found about lobbying to help the fishing industry referred to 1966 when the rules were relaxed and not in the Middle Ages when the rules were first released.

      Thanks again for your comments.

    • profile image


      10 years ago

      It wasn't just a "rule." Eating meat on Fridays for Catholics was a mortal sin for which you could roast along with your meat in hell for all eternity.

    • Seabastian profile image


      10 years ago from Raleigh

      A great hub. I learned a lot about the Catholic church and the origins of some modern customs which is always interesting.

      I was also reminded that economics plays a larger role than almost any other force in shaping ideas and customs.Maven also brought out the point that there is also always a "special interest" appealing to the reigning authority for economic help. I wonder if Gm's management has an appointment scheduled with the pope.

    • Chuck profile imageAUTHOR

      Chuck Nugent 

      10 years ago from Tucson, Arizona

      advisor4qp - Thanks for your comments. In addition to the Greek Orthodox, other Orthodox Churches also have rules requiring members to abstain from eating meat on certain days, including Lent. The Anglican (Episcopal church in U.S.) also has or had some rules in this area as well.

      Thanks again.


    • maven101 profile image


      10 years ago from Northern Arizona

      As a " mackerel snapper " I always understood the imposition by the Roman Catholic Church to eat meat on Friday was issued on purely economic grounds...The mediterranean fishing industry appealed to the church hierarchy to impose the requirement to increase their market share during the middle ages...the religious connotations were simply window dressing making the edict more palatable to the flock...

      Very well written and informative Hub...Thank you...Larry

    • advisor4qb profile image


      10 years ago from On New Footing

      Very interesting hub! The Greek Orthodox method of observing Lent is also very interesting, yet stricter.


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