Visita Iglesia, visiting seven churches during Holy Week, and the broader fasting and abstinence practices many Filipino Catholics observe leading up to it, mean a period of altered eating with real effects on your gut, separate from the spiritual significance the practice holds.
What traditional Holy Week fasting typically involves
Fasting practices vary by household and level of observance, but commonly include one full meal a day with two smaller meals on Good Friday and Ash Wednesday, alongside abstaining from meat on Fridays throughout Lent. This is a moderate fasting pattern compared to more extended fasting practices in other traditions, and it doesn't typically involve complete food restriction.[1] Other fasting traditions observed in the Philippines, including Ramadan fasting in Filipino Muslim communities, follow a longer and more structured daily pattern than typical Holy Week observance.
What longer gaps between meals do to your gut bacteria
Extended periods without food shift your gut bacteria's fuel source, since without incoming dietary fiber, some gut bacteria populations temporarily decline while others that can survive on alternative substrates, including your gut's own mucus lining, become relatively more active.[2] A day or two of this pattern isn't harmful for most healthy adults and reverses once normal eating resumes. Research on intermittent fasting patterns more broadly even suggests some potential benefits to gut bacteria diversity from periodic fasting windows, though the research specifically on one or two days of reduced eating, rather than structured longer-term intermittent fasting, is less developed.
The meat abstinence angle specifically
Abstaining from meat on Fridays during Lent, replaced with fish or plant-based dishes, temporarily shifts the composition of what your gut bacteria are processing, generally toward more fiber if fish is paired with vegetables, which can be a mild positive shift for gut bacteria diversity during that day compared to a typical meat-heavy meal.[3]
Staying well hydrated throughout the fasting days matters more than during typical eating, since less frequent meals often means less frequent fluid intake too, the same hydration principle behind tabo culture and proper hydration habits. When you do eat your one full meal, including vegetables and some protein rather than only refined carbohydrates gives your gut bacteria more to work with during the smaller eating window.
What to do during Holy Week fasting
Break the fasting period gradually, rather than immediately returning to large, rich meals, the same way easing into a fast would ease the transition back. That gradual approach matters even more heading into graduation and wedding buffet season, where the challenge flips to too much rich food in a short window rather than too little.
