
Intermittent fasting and the ketogenic diet often go hand in hand, with many keto dieters practicing short-term intermittent fasting (12-24 hours) and occasionally incorporating long-term fasts (>24 hours). When breaking a fast, it is important to do so gently to avoid stomach upset and overeating. Consuming a large meal, especially one containing carbohydrates, can cause a dangerous spike in insulin levels, leading to severe complications. Therefore, it is recommended to start with low-carbohydrate, easily digestible, nutrient-dense foods such as bone broth, eggs, or low-starch vegetables like cucumbers and leafy greens. Staying hydrated during fasting is also crucial, as it triggers metabolic changes that increase fluid loss.
What to eat on keto when breaking a fast
| Characteristics | Values |
|---|---|
| Fast length | Short fasts (36 hours) or long fasts (>36 hours) |
| Food type | Low-carb, high-fat meals |
| Meal size | Small portions |
| Food suggestions | Bone broth, scrambled eggs, omelette with cheese, steamed spinach, low-starch vegetables (cucumber, zucchini, leafy greens), yoghurt with MCT oil, chicken |
| Drinks | Water, black coffee, unsweetened tea, diluted apple cider vinegar |
| Alcohol | Avoid, especially binge drinking |
| Processed foods | Avoid |
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What You'll Learn

Avoid large meals, especially those containing carbs
When breaking a fast, it is important to be mindful of the amount and type of food you consume. Consuming large meals, especially those containing carbohydrates, can trigger an excessive release of insulin, leading to dangerous shifts in the body's fluid and electrolyte balances. This can cause severe complications, such as refeeding syndrome, which in extreme cases can lead to heart failure, seizures, coma, or even death.
To avoid these risks, it is recommended to start with small portions of nutrient-dense, easily digestible foods that won't spike your blood sugar and insulin levels. Low-starch vegetables, such as cucumbers, zucchini, and leafy greens, are excellent choices as they are low in calories, packed with fiber, and gentle on the digestive system. Bone broth is another recommended option as it is nutrient-dense, low in calories, and easy to digest, providing essential minerals and electrolytes to restore balance.
It is also important to stay hydrated during and after fasting, as metabolic changes can increase fluid loss. Maintaining adequate mineral levels with a nutrient-dense diet that includes whole foods before and after fasting is crucial for overall health and well-being. Additionally, it is suggested to avoid processed foods and soda for a few days after breaking a fast.
When it comes to keto-specific recommendations, some sources suggest that you can resume eating normally after a fast, as long as you stick to low-carb, high-fat meals. However, it is generally recommended to ease back into eating, especially after longer fasts, to avoid digestive discomfort and maintain ketosis. Combining keto with intermittent fasting can be a powerful approach to enhancing weight loss and metabolic improvements.
In summary, when breaking a fast, it is crucial to avoid large meals, especially those containing carbohydrates. Start with small portions of nutritious, low-carbohydrate foods to minimize the risk of adverse effects and maintain the benefits of your fasting journey.
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Focus on low-carb, high-fat meals
When breaking a fast, it is important to focus on low-carb, high-fat meals. This is because consuming large amounts of carbohydrates after a fast can cause a dangerous spike in insulin levels, leading to severe complications such as refeeding syndrome. Refeeding syndrome can cause heart failure, seizures, coma, and even death.
To avoid these risks, it is recommended to start with small portions of nutrient-dense, easily digestible foods that are low in carbohydrates. Bone broth is a popular choice, as it is nutrient-dense, low in calories, and easy to digest. It also provides essential minerals and electrolytes to help restore mineral balance. Other options include low-starch vegetables such as cucumbers, zucchini, and leafy greens, which are packed with fiber and essential nutrients while being gentle on the digestive system.
For those following a ketogenic diet, it is important to maintain ketosis when breaking a fast. This can be achieved by including pure fats in your first meal, such as eggs, cheese, nuts, yoghurt, or MCT oil. These foods will provide your body with the energy it needs without taking you out of ketosis. It is also recommended to avoid processed foods and sugary substances, as these can quickly spike blood glucose levels and undo the benefits of your fast.
Additionally, it is crucial to stay hydrated during and after a fast, as fasting can increase fluid loss and deplete essential minerals. Maintaining adequate mineral levels with a nutrient-dense diet that includes whole foods is important for overall health and well-being. Coffee mixed with medium-chain triglycerides (MCT) oil, butter, coconut oil, or ghee can also help curb hunger without breaking ketosis.
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Avoid alcohol, especially after fasting for over 36 hours
When breaking a fast, it is important to consume food low in carbohydrates to minimize the risk of refeeding syndrome. Eating easily digestible, nutrient-dense foods that won't spike blood sugar and insulin levels is vital. Some examples of foods to break a fast include bone broth, scrambled eggs, steamed spinach, and low-starch vegetables such as cucumbers and leafy greens.
Now, coming to the topic of alcohol, it is generally recommended to avoid alcohol, especially after fasting for over 36 hours. Alcohol intake has been shown to block fat breakdown and may slow fat burning. While light to moderate drinking does not appear to have the same effect as excessive drinking on body fat percentage, any amount of alcohol during a fasting period will break your fast.
Excessive alcohol consumption can lead to widespread inflammation in the body, counteracting the benefits of intermittent fasting and potentially leading to diseases. Additionally, drinking alcohol during your fasting window is unhealthy and unsafe, as there is no food in your system to absorb the alcohol. It is recommended to drink during your eating window and to wait at least an hour after eating to allow your body to digest the food before consuming alcohol.
Furthermore, drinking close to bedtime is not advisable as it interferes with REM sleep, the deep stage of sleep that is necessary for restorative rest. Alcohol is calorie-dense, and drinking can loosen your commitment to fasting and weight loss goals, making it harder to stick to dietary restrictions. Therefore, it is crucial to drink in moderation and be mindful of the potential impact on your fasting and overall health goals.
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Start with bone broth or psyllium husk in water
When breaking a fast, it is important to be mindful of what you eat to avoid digestive discomfort, blood sugar fluctuations, and electrolyte imbalances. Consuming a large meal after a fast, especially one containing carbohydrates, can cause an excessive release of insulin, leading to dangerous shifts in the body's fluid and electrolyte balance. This can result in severe complications such as refeeding syndrome, which in extreme cases can lead to heart failure, seizures, coma, or even death.
Bone broth is a nourishing and satisfying option to break your fast. It has virtually zero carbs and few calories, making it suitable for the ketogenic diet or fasting. Bone broth is rich in collagen, which has numerous benefits, including reducing cellulite, improving skin health, and increasing lean muscle mass. Additionally, the amino acids glycine and proline aid the liver in detoxifying the body and reducing inflammation. The Bone Broth Diet suggests consuming only bone broth and water for two days a week, which can boost weight loss and provide a feeling of nourishment during fasting.
Alternatively, starting with psyllium husk in water is another option when breaking a fast. Psyllium husk is a naturally occurring soluble fiber that breaks down in water and promotes healthy bowel movements. It forms a gel by absorbing water, which can help control blood sugar by slowing the absorption of glucose into the bloodstream. Psyllium husk has been shown to lower fasting blood sugar and may improve heart health by lowering LDL cholesterol levels and increasing HDL cholesterol. However, it is important to ensure adequate fluid intake when consuming psyllium husk to avoid constipation or intestinal blockage.
When breaking a fast, it is recommended to start with a small meal and eat slowly. A nourishing bone broth or psyllium husk in water can be a good starting point, followed by a small salad of low-starch vegetables like cucumbers, zucchini, and leafy greens. These vegetables are packed with fiber and essential nutrients, providing a gentle transition for your digestive system. It is also important to stay hydrated during fasting to mitigate the metabolic changes that increase fluid loss.
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Eat small portions of nutrient-dense foods
Eating small portions of nutrient-dense foods is one of the best ways to break a fast. This is because fasting increases insulin sensitivity and reduces digestive enzymes, so eating small portions of nutrient-dense foods helps to ease your body back into processing food without issues and maintaining ketosis.
Nutrient-dense foods are those that are rich in vitamins and minerals and low in calories. Examples include low-starch vegetables such as cucumbers, zucchini, leafy greens, and steamed spinach. These vegetables are packed with fibre and essential nutrients, gentle on the digestive system, and help stimulate the release of digestive enzymes. Bone broth is another nutrient-dense, low-calorie option that is easy to digest and provides essential minerals and electrolytes to restore mineral balance.
It is also important to stay hydrated during fasting as it triggers metabolic changes that increase fluid loss. This can deplete essential minerals such as sodium, potassium, and magnesium. Therefore, drinking water, black coffee, unsweetened tea, and diluted apple cider vinegar are good ways to stay hydrated during a fast.
Additionally, when breaking a fast, it is best to avoid overeating or choosing foods that are high in sugar, fat, and fibre. This is because consuming a large meal, especially one containing carbohydrates, triggers excessive insulin release, causing dangerous shifts in the body's fluid and electrolyte balances. Instead, it is recommended to resume eating with a small meal, such as a nourishing bone broth, a small salad, or scrambled eggs with cheese and vegetables.
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Frequently asked questions
It is recommended to start with a small meal and eat slowly. Bone broth is a popular option as it is nutrient-dense, low-calorie, and easy to digest. You can also try a cup of broth with eggs, scrambled or in an omelette with cheese, or steamed spinach. For longer fasts, it is important to avoid large meals and carbohydrates, as they can cause a dangerous spike in insulin levels.
It is important to plan how you are going to end your fast, especially for longer fasts. Staying hydrated is essential, as fasting can increase fluid loss. Alcohol should also be avoided, especially after a fast longer than 36 hours, as it can trigger alcoholic ketoacidosis.
It is best to avoid processed foods and sugary drinks. You should also avoid overeating, as this can cause digestive discomfort, blood sugar fluctuations, and electrolyte imbalances.











































