Drinking Kefir: Its Health Benefits and Role in Fasting

Drinking Kefir: Its Health Benefits and Role in Fasting

Fasting has become a popular practice for many health-conscious individuals seeking to improve their metabolic health, lose weight, and enhance overall well-being. But when it comes to fasting, many wonder if they can drink certain beverages, especially those that contain probiotics, like water kefir. If you’ve ever asked, Can I drink water kefir while fasting? You are not the only person.

Kefir, a probiotic-rich fermented drink, has gained attention for its incredible health benefits. Whether you’re looking to boost your gut health, manage blood sugar levels, or enhance your fasting routine, kefir might be the perfect addition to your diet.

This article explores the health benefits of kefir, its role in fasting, and how it can complement your wellness goals.

What is Kefir?

Let's first take a moment to understand what it is. 

Kefir is a fermented drink made from milk or water, and it’s known for its rich probiotic content. Water kefir, in particular, is made by fermenting sugar water or fruit juice with kefir grains, which are colonies of bacteria and yeast. This process results in a naturally fizzy, mildly sweet beverage loaded with beneficial probiotics, enzymes, and organic acids.

Kefir has been used for centuries due to its health-promoting properties. It’s recognized for supporting gut health, boosting the immune system, and even improving skin conditions. 

When consumed regularly, kefir may also help with digestion, making it an appealing drink for those looking to improve their overall wellness.

Nutritional value of kefir

Kefir is packed with essential nutrients that contribute to its health benefits. Here’s a breakdown of its key nutritional components:

  • Probiotics: Kefir is an excellent source of live, beneficial bacteria that promote gut health.

  • Protein: It provides a significant amount of protein, helping with muscle repair and overall body function.

  • Vitamins: Kefir contains various vitamins, particularly B vitamins (B2, B12) and vitamin K2, essential for energy, metabolism, and bone health.

  • Minerals: It’s rich in calcium, magnesium, and phosphorus, which are crucial for bone health.

  • Organic acids: These compounds, like lactic acid, contribute to kefir’s tangy taste and support digestion.

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Types of kefir

Kefir comes in two main varieties, each with unique characteristics and benefits:

1. Milk kefir

  • Made by fermenting dairy milk using kefir grains.

  • Rich in probiotics, protein, calcium, and vitamins.

  • Creamy texture and tangy flavor.

  • Available in dairy-free versions using almond, coconut, or soy milk.

2. Water kefir

  • Made by fermenting sugar water or fruit juice with water kefir grains.

  • Lighter, fizzy, and slightly sweet.

  • Naturally dairy-free and vegan-friendly.

  • Great for hydration and low-calorie needs.

Must read: Kefir: Discovering the Benefits of Probiotic Milk

Now that you know what kefir is, let’s get into its health benefits and why it’s worth adding to your routine.

Health Benefits of Drinking Kefir

Kefir offers a wide range of potential health benefits:

1. Supports Gut Health

One of the main reasons kefir has gained popularity is its ability to support digestive health. Thanks to the probiotic strains found in kefir, including Lactobacillus and Bifidobacterium, this beverage helps maintain a healthy balance of gut bacteria. 

These probiotics play a crucial role in digestion and can aid in breaking down food more efficiently.

This makes kefir a great addition to a healthy diet. It also supports the gut during fasting, a time when the digestive system is less active.

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2. Regulates Blood Sugar Levels

Controlling blood sugar levels is important for fasting people. The probiotics in kefir can help balance blood sugar levels by improving insulin sensitivity. 

This means that consuming kefir while fasting may help prevent the blood sugar spikes and crashes that are often associated with long periods without food.

Kefir may also help reduce hunger cravings by stabilizing blood sugar, making it easier to stick with a fasting routine.

3. Boosts Hydration

Staying hydrated is essential while fasting, especially if you don’t consume food. Water kefir, which is mostly water and contains electrolytes that help replenish essential minerals, is a great way to maintain hydration. 

These electrolytes can help maintain proper hydration during a fast, making water kefir an excellent choice for those who want to stay hydrated without breaking their fast.

4. Supports Detoxification

Kefir’s natural enzymes and organic acids are believed to assist with detoxification. They help your body break down and eliminate toxins more efficiently. 

During a fast, your body naturally goes into a detoxification process, and drinking water kefir may help accelerate this process, promoting a healthier, more rejuvenated feeling.

5. Promotes Immune System Function

Fasting can sometimes leave the body more vulnerable to illness, especially if it’s prolonged. 

The probiotics in kefir play an essential role in strengthening the immune system. They help stimulate the production of antibodies and support the gut-associated lymphoid tissue (GALT), which is a significant component of the immune system. So, drinking kefir while fasting can help keep your immune system in optimal shape.

6. Enhances Nutrient Absorption 

Kefir can improve the body’s ability to absorb essential nutrients, including calcium, magnesium, and vitamins B12 and K2. The probiotics aid in breaking down food components, making nutrients more bioavailable for absorption.

This nutrient-enhancing benefit can be particularly valuable during fasting, ensuring the body can maximize nutrient intake from limited meals.

7. Improves Bone Health 

Kefir is a great source of calcium and vitamin K2, two critical nutrients for bone density and strength. Calcium supports bone structure, while vitamin K2 helps ensure proper calcium distribution in the bones rather than soft tissues.

Regular consumption of kefir may reduce the risk of osteoporosis and improve overall bone health, particularly for older adults.

8. Aids in Weight Management 

Kefir may assist with weight management by promoting satiety and reducing cravings. The combination of probiotics, protein, and hydration can help keep you full for longer, which can be especially helpful during fasting or calorie-restricted diets.

By stabilizing blood sugar and supporting gut health, kefir can contribute to healthier weight management habits over time.

9. Contains Antibacterial Properties 

Certain probiotic strains in kefir, such as Lactobacillus kefiri, have been shown to possess antimicrobial properties. These beneficial bacteria can help inhibit the growth of harmful pathogens like Salmonella, E. coli, and H. pylori, protecting against infections.

10. Enhances Mood and Mental Health 

Emerging research suggests a strong connection between gut health and mental well-being. The probiotics in kefir may positively influence the gut-brain axis, potentially reducing symptoms of anxiety and depression.

A balanced gut microbiome has been linked to improved mood regulation and cognitive function, making kefir a natural choice for supporting mental health.

Also read: Restoring Gut Health and Flora After Antibiotics.

These benefits make kefir a fantastic choice for overall health, but how does it fit into fasting practices?

Can I Drink Water Kefir While Fasting?

Whether you can drink water kefir while fasting depends largely on the type of fasting you're doing. 

Different fasting methods have varying rules about what is allowed during the fasting period, so it's important to understand how water kefir fits into each of these methods. Let’s break it down:

1. Strict Water Fasts

A strict water fast is one where only water is consumed—no food or beverages that contain calories or nutrients are allowed. This type of fast aims to give the body a complete break from digestion, allowing it to rest and rejuvenate. 

Since water kefir is a fermented drink made with sugar water and kefir grains, it contains both calories and nutrients (from the sugar and probiotics), which can trigger digestive processes in your body.

Drinking water kefir during a strict water fast would technically break the fast, as it introduces calories and disrupts the digestive rest that the fast is trying to achieve. So, water kefir is generally not permitted during a strict water fast.

2. Intermittent Fasting

Intermittent fasting (IF) is a popular eating pattern that alternates between periods of fasting and eating. Common protocols include the 16/8 method (16 hours of fasting and 8 hours of eating), the 5:2 method, and others. 

Intermittent fasting often aims to reduce calorie intake during fasting periods and improve metabolic health rather than avoid food and drink entirely.

In this case, water kefir can usually be consumed during the eating window. It contains a minimal amount of calories (around 30-40 calories per cup) and is generally considered non-disruptive to the fasting process. 

However, it’s important to note that the specific rules of the intermittent fasting protocol you're following may vary. 

Some methods or fasting schedules might allow you to drink water kefir during fasting hours, while others may limit it to only certain beverages, such as water, black coffee, or herbal tea. 

If you're using intermittent fasting to lose weight, it's still wise to track your calories, including those from kefir.

3. Extended Fasts

Extended fasts last longer than typical intermittent fasts, often for several days. They are often done for detoxification, healing, or health benefits and require more careful planning. 

When you fast for an extended period, your body enters deeper metabolic states, such as ketosis or autophagy (the process of cell recycling). 

Because the fast is long, it’s important to be cautious about what you consume, as it could potentially interfere with these processes.

During extended fasts, it’s recommended to consult with a healthcare professional or a fasting specialist before consuming any beverages, including water kefir. 

While kefir may provide some benefits, such as hydration and probiotic support, consuming it during an extended fast may break the fast in terms of metabolic processes and delay the desired health benefits. A healthcare provider can help you determine the best approach and decide if kefir fits into your fasting plan.

How water kefir supports fasting

Water kefir is a low-calorie, hydrating, and probiotic-rich beverage that can be a valuable addition to various fasting routines. Here's a detailed look at how it supports fasting:

1. Low-calorie content

One of the key challenges of fasting is maintaining energy levels while adhering to calorie restrictions. Water kefir is naturally low in calories, making it a suitable choice for many fasting plans.

  • Impact on fasting goals: Its low calorie count ensures that it doesn’t significantly interfere with the fasting state, particularly intermittent or caloric fasting.

  • Why it’s effective: The trace calories in water kefir come from naturally fermented sugars, which are broken down during fermentation, leaving only minimal residual sugar and energy content.

2. Hydration

Fasting can sometimes lead to dehydration, especially when water intake is overlooked, or fluids are lost due to metabolic changes. Water kefir is an excellent option for replenishing lost fluids and maintaining hydration.

  • Natural electrolytes: During fermentation, water kefir develops minerals and electrolytes that help balance hydration levels, particularly during detox or extended fasting.

  • Better absorption: The slight carbonation in water kefir can make it more palatable, encouraging better fluid intake compared to plain water.

3. Probiotic support

Fasting can disrupt the gut microbiome, particularly if your body is transitioning to a new diet or routine. Water kefir helps maintain a healthy gut balance by introducing beneficial bacteria and yeasts.

  • Gut stability: The probiotics in water kefir aid digestion and prevent common fasting-related digestive issues such as bloating, constipation, or irregular bowel movements.

  • Enhanced nutrient absorption: A balanced gut microbiome optimizes the body’s ability to absorb nutrients during eating periods, enhancing the overall benefits of fasting.

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While kefir offers many benefits for fasting, there are considerations to keep in mind for optimal results.

Tips for consuming kefir during fasting

Incorporating kefir into your fasting routine can maximize its benefits while aligning with your fasting goals. Here’s a detailed look at how to consume kefir effectively:

1. Choose water kefir over milk kefir

Water kefir is an excellent option during fasting because it is lower in calories and sugar than milk kefir.

  • Why it matters: While nutritious, milk kefir contains natural sugars (lactose) and higher calories, which may disrupt stricter fasting regimens. Water kefir, on the other hand, provides hydration and probiotics without significantly impacting calorie intake.

  • Tip: Always check the label to confirm the product is indeed water kefir and not mixed with milk or fruit juices.

2. Watch the sugar levels

Some commercial water kefir brands may include added sugars, which can unintentionally increase your calorie intake.

  • Why it matters: Even small amounts of added sugar can break your fast, particularly if you’re fasting to regulate blood sugar or lose weight.

  • What to do: Choose unsweetened water kefir or brands that explicitly state “no added sugars.” Alternatively, make your water kefir at home to control your sugar levels.

3. Start with small servings

If you’re new to kefir, it’s wise to begin with smaller portions, especially during fasting periods.

  • Why it matters: Kefir is rich in probiotics, which may cause temporary digestive changes, such as bloating or gas, as your gut microbiome adjusts.

  • What to do: Start with 4–8 oz per serving and monitor how your body responds. If you tolerate it well, gradually increase the amount.

Including kefir in your fasting routine can enhance its benefits, but moderation and mindful choices are key.

How to Incorporate Kefir into Your Fasting Routine

If you’re wondering how to incorporate water kefir into your fasting routine, here are a few tips:

  • Drink kefir during your eating window: Most fasting schedules allow for food and drink consumption during specific hours of the day. Use this time to drink water kefir to enhance gut health and keep you hydrated.

  • Pair kefir with meals: Kefir can be enjoyed with your meals to promote digestion and improve nutrient absorption. Consider adding it to your pre-fast or post-fast meals to boost its benefits.

  • Stay mindful of sugar content: While water kefir is a low-sugar beverage, it’s still important to be mindful of how much you consume during your fast. Opt for unsweetened or lightly sweetened varieties to avoid spikes in blood sugar.

  • Use kefir for gut support: If your main goal is to support gut health during a fast, kefir can be an excellent choice. Its probiotic content helps restore balance to the gut microbiome, promoting digestion and overall health.

With so many ways to enjoy kefir, let’s address a few common questions about its consumption and fasting compatibility.

FAQs

1. Will kefir break my fast?

Due to its minimal calorie content, unsweetened water kefir is unlikely to break a fast, especially during intermittent or detox fasting.

2. How much kefir can I drink during fasting?

Stick to 1–2 servings (8–16 oz) to reap the benefits without overloading on calories or sugar.

3. Can I drink milk kefir while fasting?

Milk kefir is higher in calories and sugar, making it less suitable for strict fasting plans. Water kefir is a better choice.

With these answers in mind, let’s recap why kefir is a valuable addition to your fasting and wellness routine.

Drinking water kefir during fasting can provide numerous health benefits, including supporting gut health, regulating blood sugar, and boosting hydration. 

While it may not be suitable for every fasting regimen, it can certainly play a beneficial role in your routine if you're following intermittent fasting or simply looking for a way to maintain hydration during longer fasts.

If you’re looking to incorporate kefir into your daily routine, The Good Bug offers high-quality kefir options that are packed with beneficial probiotics. Whether you’re new to kefir or a seasoned drinker, The Good Bug makes it easy to access healthy, delicious water kefir options. Explore their range and start your journey to an improve gut health and hydration today!

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References: 

https://www.medicalnewstoday.com/articles/318353#:~:text=More%20recently%2C%20a%202021%20review,are%20important%20for%20managing%20diabetes.

https://www.healthline.com/nutrition/9-health-benefits-of-kefir

https://www.webmd.com/diet/kefir-good-for-you

https://www.healthshots.com/healthy-eating/superfoods/kefir-health-benefits/

https://www.dailysabah.com/life/food/kefir-ups-tolerance-for-long-fasting-hours-during-ramadan

https://fhafnb.com/glossary/kefir/

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