Bone Broth Fasting vs. Water Fasting: Which One is Right for You?

Fasting, the voluntary abstinence from food and drink for a specific period, has been practiced for centuries across various cultures and religions for spiritual and health reasons.

Among the various fasting methods, water fasting and bone broth fasting have emerged as two distinct approaches that have captured the interest of health enthusiasts.

Water fasting, a traditional method, involves consuming only water for a set duration, while bone broth fasting allows the consumption of bone broth, which is rich in nutrients and minerals.

This rise in interest is reflected in the increasing number of discussions in online forums, and social media platforms, and the growing body of research exploring the health implications of these fasting methods.

Understanding Fasting

Fasting, at its core, is the act of willingly abstaining from some or all food, drink, or both, for a period of time.

It can vary from a few hours to several days or even longer.

While fasting has been traditionally associated with religious practices, it has gained modern traction for its potential health benefits.

Here are the different types of fasting:

  • Intermittent Fasting (IF): This involves cycling between periods of eating and fasting. Common patterns include 16/8 (fasting for 16 hours and eating within an 8-hour window) and 5:2 (eating normally for 5 days and restricting calories for 2 non-consecutive days).
  • Time-Restricted Feeding (TRF): A form of IF where eating is restricted to a certain number of hours each day, such as 12 hours of eating followed by 12 hours of fasting.
  • Alternate-Day Fasting (ADF): Alternating between days of normal eating and days of either complete fasting or significant calorie reduction.
  • Prolonged Fasting: Extending beyond the typical IF periods, prolonged fasting usually lasts for 48 hours or more, up to a week or longer.

The principles behind intermittent fasting revolve around the body’s metabolic switch from using glucose as its primary energy source to utilizing fatty acids and their byproducts, called ketones.

This switch typically occurs several hours to days after ceasing food intake, depending on the individual’s metabolism and the type of fasting.

Water Fasting

Water fasting is a form of dietary restriction where an individual consumes nothing but water for a set period, typically ranging from 24 to 72 hours.

This method of fasting is often undertaken for health, spiritual, or religious reasons, and it’s crucial to approach it with caution due to the absence of food intake.

Benefits of Water Fasting:

  • Weight Loss: Short-term weight loss is one of the most cited benefits of water fasting.
  • Autophagy: This process involves the body’s natural degradation and recycling of cellular components, which may be stimulated during water fasting.
  • Potential Health Improvements: Some studies suggest that water fasting may lower the risk of chronic diseases and improve metabolic markers such as blood pressure and cholesterol levels.

Challenges of Water Fasting:

  • Nutrient Deficiency: Prolonged absence of food can lead to a lack of essential nutrients.
  • Risk of Lean Mass Loss: There is a concern that water fasting may lead to more lean mass loss than fat loss.
  • Rebound Weight Gain: The weight lost during water fasting can be quickly regained after resuming normal eating habits.

Recent Studies and Expert Opinions:

  • A study from the University of Illinois Chicago found that while water fasting can lead to short-term weight loss, its metabolic benefits, such as improved blood pressure and cholesterol levels, tend to disappear soon after the fast ends.
  • Experts generally agree that the potential risks of water fasting, especially when attempted without medical supervision, outweigh the limited benefits. It is not recommended for individuals with certain medical conditions.
  • Another study highlighted that medically supervised water-only fasting followed by refeeding reduced resting systolic blood pressure, abdominal circumference, low-density lipoprotein (LDL), and high-sensitivity C-reactive protein (hsCRP) after refeeding.

Bone Broth Fasting

Bone broth fasting is a modern adaptation of traditional fasting methods, where individuals consume bone broth several times per day while abstaining from solid foods.

Unlike water fasting, which involves only the intake of water, bone broth fasting provides a rich array of nutrients and minerals that support the body during the fasting period.

What is Bone Broth Fasting?

  • Bone broth fasting typically involves drinking bone broth multiple times throughout the day.
  • The broth is made from simmering animal bones and connective tissues, which release nutrients into the liquid.
  • This type of fasting is believed to support the digestive system and promote a healthier way of eating.

Nutritional Content of Bone Broth:

  • Bone broth is low in calories, with approximately 35 to 50 calories per serving.
  • It contains collagenamino acids like glycine, arginine, and proline, as well as vitaminsminerals, and electrolytes.
  • One cup of beef bone broth typically contains about 39 calories9 grams of protein1 gram of fat, and 0 grams of carbohydrates.

Potential Health Benefits:

  • Bone broth fasting may enhance digestion and reduce symptoms related to digestive disorders such as leaky gut syndrome, IBS, or IBD.
  • It can support joint health due to its collagen content.
  • The amino acids and minerals in bone broth may help strengthen the immune system and promote healthy skin.

Controversy Around Bone Broth and Fasting:

  • There is some debate over whether bone broth breaks a fast due to its caloric content.
  • While bone broth does contain calories, it is also supportive of ketosis, which is a goal of many fasting protocols.
  • Some experts suggest that the benefits of bone broth, such as supporting liver function and promoting restful sleep, may outweigh the fact that it technically breaks a fast.

Comparing Bone Broth Fasting and Water Fasting

When considering bone broth fasting and water fasting, it’s important to understand how each method affects the body and which might be more beneficial for specific health goals.

bone broth fasting vs water fasting

Comparison of Fasting Methods:

  • Water Fasting: Involves consuming only water for a set period. It’s a traditional method that’s been used for spiritual and health reasons.
  • Bone Broth Fasting: Allows the consumption of bone broth, which provides nutrients and minerals, while abstaining from solid foods.

Weight Loss:

  • Water Fasting: This may lead to short-term weight loss due to a significant calorie deficit. However, there’s a risk of lean mass loss and potential rebound weight gain once normal eating resumes.
  • Bone Broth Fasting: Can also promote weight loss, as it typically involves a calorie deficit. The nutrients in bone broth may help prevent muscle wasting and support metabolism during the fast.


  • Water Fasting: Believed to promote autophagy and detoxification, helping the body break down and recycle old parts of cells. However, it comes with risks and may not be suitable for everyone.
  • Bone Broth Fasting: Provides essential nutrients that support liver function, which is crucial for detoxification. The amino acids and minerals in bone broth may aid in the body’s natural detox processes.

Gut Health:

  • Water Fasting: Gives the digestive system a rest, which can be beneficial for gut health. However, the lack of nutrients can be a concern for maintaining a healthy gut lining.
  • Bone Broth Fasting: The collagen and amino acids in bone broth are known to support gut health, reduce inflammation in the gut lining, and promote healing of the digestive tract.

Expert Opinions

The efficacy of bone broth fasting and water fasting has been a topic of discussion among nutritionists, dietitians, and other health experts.

Here are some of their views:

  • Leigh Merotto, RD, a Toronto-based registered dietitian with a focus on metabolic health, digestion/gut health, and sports nutrition, states that bone broth is a bit controversial when fasting. She notes that while bone broth does contain small amounts of fat and calories which could technically break a fast, on longer fasts—like the 24-hour fast—some fat may be okay as it can keep the body in ketosis.
  • Ashley Reaver, RD, an Oakland, California-based registered dietitian and creator of the Lower Cholesterol Longer Life Method, explains that there are different styles of intermittent fasting and that all incorporate restricting the time frames that you can eat. She mentions that common intermittent fasting schedules include time-restricted eating, alternate-day fasting, the 5:2 method, eat-stop-eat, and the Warrior Diet.
  • The Kettle & Fire Blog suggests that bone broth is a great liquid to drink when you fast, as it’s like filling up your gas tank with premium fuel. It supports your body’s natural healing processes without taking you out of a fasted state, in contrast to a regular water fast where you take in very few nutrients.
  • The DoFasting Blog mentions that unlike water or liquid fasts, bone broth fasting will provide you with essential nutrients without breaking your fast. This makes bone broth an excellent starting point for beginners, as it will give them adequate hydration and energy during their fasting period.


When comparing the two Water Fasting and Bone Broth Fasting, it’s clear that each has its own set of benefits and challenges.

Water fasting may offer a deeper detoxification process and more profound weight loss results, but it requires careful consideration of the potential risks.

Bone broth fasting, on the other hand, provides a more nourishing experience that may be easier to sustain, especially for those new to fasting.

The choice between bone broth fasting and water fasting ultimately depends on individual health goals, preferences, and medical conditions.

For those seeking significant weight loss and detoxification, water fasting might be the preferred method.

However, for individuals looking for a gentler approach that supports gut health and provides nutritional benefits, bone broth fasting could be more suitable.


Hi there, I'm Pranay, a fitness enthusiast who loves working out regularly and staying in shape. I'm passionate about health and fitness, and I'm always on the lookout for new and exciting ways to stay active and healthy.

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