The Easter Reset: Can a Holiday Fasting Improve Your Health?

During Easter, nature awakens, and people feel it too. The season is often seen as a reset, a symbol of new beginnings. For many, it’s about spirituality, but recently, this perspective has shifted.

Now, it also inspires people to focus on their health. Easter fasting is gaining attention as a way to reset the body, with potential benefits for blood pressure, blood sugar, and inflammation.

This intrigued us, so we decided to take a closer look. In this article, we explore the science behind holiday fasting, how to do it safely, and whether a short break from food around Easter can truly improve your health.

The science behind holiday fasting

Holiday fasting has long been practised across cultures, and research suggests it may influence physical health. A 2024 meta‑analysis indicated that faith‑based fasting may be associated with improvements in key cardiovascular risk factors among healthy adults.

They examined 14 studies with over 1,400 participants and found that fasting may reduce body mass index (BMI), blood pressure, and total cholesterol levels.

As Medical Doctor, Alexander Acosta, explains, the metabolic effects of fasting begin relatively quickly. “Blood glucose starts to decline within 12 to 16 hours after stopping food intake, as the body first uses up liver glycogen stores and then shifts toward burning fat. During this time, insulin levels drop, and glucose stabilizes at a lower baseline.”

He notes that longer fasting periods can amplify these effects: a 24-hour fast may reduce fasting blood glucose by 10–30 mg/dL in healthy adults. This amount could temporarily move someone from a borderline prediabetic range into normal levels.

Another review analyzed clinical studies on Christian Orthodox fasting. The authors noticed that during fasting periods, people tend to resemble a plant‑focused or Mediterranean‑style diet. They consume more fruits, vegetables, whole grains, legumes, and seafood, while reducing meat, dairy, fats, and sugars.

The gathered evidence suggested several potential health benefits: improved glucose metabolism, better control of blood lipids, lower caloric intake, and weight control.

However, changes in blood pressure were less consistent across studies, and some nutrient concerns, such as lower calcium, vitamin B2, and vitamin D levels in some fasters, have been noted.

Does it have an impact in the long term?

A 2024 cross‑sectional study investigated whether long‑term adherence to Christian Orthodox fasting is associated with healthier metabolic and lifestyle patterns among individuals already diagnosed with metabolic disorders.

The researchers compared 67 long‑term fasters who had practiced for at least 12 years with 68 non‑fasters. They found that fasters had a healthier body weight and a lower prevalence of hypertension. Fasters were also less likely to smoke, engaged in less sedentary behavior, had higher ‘good’ cholesterol levels, and lower glucose and inflammatory marker levels.

These associations suggest that the traditional Christian Orthodox fasting dietary pattern may be linked to improved metabolic health and a healthier lifestyle among people with metabolic disease. The authors note that larger and more diverse studies are needed to confirm these findings and better understand the potential long‑term effects of religious fasting.

Different ways of fasting

Even though traditional Easter fasting might last up to 48 days, not everyone is willing to do that. Today, many people eat frequently and have only short periods without food. Fasting can be short-term, like intermittent fasting (IF), or long-term, lasting more than 8 days. IF is a popular dietary method, and there are several types:

• Alternate-day fasting. People eat very little (about 25% of normal calories) one day, then eat normally the next day.
• Time-restricted feeding. People fast for a certain number of hours each day and eat freely during the remaining hours. The common schedule is 16/8 (fast 16 hours, eat 8 hours).
• Modified fasting. People limit calories on specific days each week, such as 5:2 (eat little for 2 days, eat normally for 5 days) or 4:3.

As Acosta explains, even a relatively short overnight fast can be effective. Stopping food intake around 8 p.m. and delaying breakfast until 9 or 10 a.m. creates a 12–14-hour fasting window.

“That window is sufficient to generate some measurable glucose change improvement without a functional compensation response of cortisol,” he explains. This approach may be more sustainable for those who want to experience benefits without committing to stricter fasting protocols.

How does ending the fast with an Easter meal affect the body?

After holiday fasting, a feast usually follows. People think that because they restricted calories and certain foods, they can now reward themselves. However, the reality might be different.

According to a study, a history of fasting may be associated with later tendencies toward binge eating. Even though the study was small and the authors note that further investigation is needed, it still shows that some people might crave more food.

Acosta suggests that the biggest challenge is not the fasting period itself, but how it is broken. He notes that many people treat the Easter meal as a ‘finish line,’ when in fact it may be the most metabolically sensitive moment.

“High-glycemic foods hitting an insulin system that has been in a low-output state for 12 hours causes a sharper spike than most people think,” he adds.

With holiday binging, some side effects may appear. For example, a review of 39 studies found that most people gain weight during festive holiday periods. On average, this is an increase of around 1.5  lbs (~0.7  kg). This gain is often maintained unless interventions are used.

Another study followed 2,924 adults in the U.S., Germany, and Japan over a year. Participants weighed themselves daily with smart scales during holiday periods, including Christmas and Easter.

Researchers found that their weights were about 0.5 % higher 10 days after Christmas than 10 days before, with similar smaller increases around other holiday periods.

Timing: before or after Easter?

The holiday season sometimes puts pressure on our bodies. Traveling between friends and families and gathering around new tables full of food can stress our stomachs and add a couple of pounds. Naturally, we wonder: is it better to start fasting before the holidays or after to avoid that?

A 2019 pilot study might have an answer. Researchers divided 22 participants into two groups. One followed a 2-day-per-week low-energy schedule (~730  kcal/day) during the holiday period, and the second ate normally.

Over 52 days (10 days before Thanksgiving to 3 January), the IF group lost a small but significant amount of weight, while the control group maintained or slightly gained weight.

The control group also experienced increases in fasting insulin, ‘bad’ cholesterol, and insulin resistance. In contrast, the IF group improved their ‘good’ cholesterol, triglycerides, and insulin resistance markers.

The evidence suggests that intermittent energy restriction may be an effective way to prevent holiday overeating and protect your metabolic health. It also suggests that fasting before and after big holidays might work best.

However, if you don’t want to try that but still want to avoid binging or gaining weight, think about your goals. Both pre- and post-holiday fasting may help, but they have different benefits and risks. Fasting after the holidays is usually better for managing weight gain and reducing bloating, while fasting before a big meal means you need to be careful not to overeat.

Is holiday fasting suitable for everyone?

Even though some research suggests that holiday fasting may have potential health benefits, it does not affect everyone the same way. Fasting, like other diets, may not be suitable for every individual and may have side effects.

Depending on the fasting method, people might experience dizziness, low blood sugar or blood pressure, headaches, and fatigue. Some people should consult a healthcare specialist before they start to fast or avoid it altogether:

• Pregnant or breastfeeding people
• People who have a history of eating disorders
• People who have diabetes
• People with chronic health issues like kidney disease, heart failure, epilepsy, or autoimmune conditions
• People taking blood pressure medication

Acosta also emphasizes that fasting isn’t automatically beneficial:

Cortisol promotes the production of glucose. The liver produces glucose even without any food coming in. So, a person skipping meals and not getting enough sleep when stressed out isn't fasting in any therapeutic sense of the word. Blood sugar can actually increase. Most people who go 24 to 48 hours without a structured plan will overeat at their first meal by 40 to 60% more than they normally do. That one plate can spike insulin levels more than if they hadn't fasted at all.

Alexander Acosta

Final word

Many people around the world practise fasting before holidays because of their beliefs. Others try fasting to improve their health markers, as in this case, to reset for Easter and spring.

When it comes to diets, there is one main rule: one diet can’t fit everyone’s needs. Talk with a healthcare provider and see what works best for you. If you want to try fasting before or after the holidays, start gradually. Drastic changes in eating patterns might shock your body.