The keto flu is a collection of symptoms that some people experience when starting a ketogenic diet. Symptoms can start as early as the first two days of the diet and can last for a few days to several weeks. The keto flu is caused by the body adapting to a new diet consisting of very few carbohydrates. The drastic reduction in carbohydrates can come as a shock to the body and may result in withdrawal-like symptoms. While the keto flu can be unpleasant, it is usually temporary, and there are steps that can be taken to reduce the symptoms.
Characteristics | Values |
---|---|
Time of onset | Within the first few days of starting the keto diet (2-7 days) |
Duration | A few days to several weeks (up to 1 month) |
Symptoms | Diarrhea, fatigue, muscle soreness, cravings, headache, nausea, constipation, trouble sleeping, diminished exercise performance, irritability, etc. |
Cause | Carb withdrawal, electrolyte loss, dehydration, change in gut microbiome, genetics, etc. |
Treatment | Staying hydrated, drinking water with added salt, eating more fat, transitioning to keto gradually, moderate caffeine intake, etc. |
What You'll Learn
- Keto flu symptoms can start within the first two days of the diet
- The keto flu is caused by a transition from burning sugar to burning fat
- Symptoms can last from a few days to several weeks
- The keto flu is not dangerous and will disappear once your body is in ketosis
- Staying hydrated and replenishing electrolytes can help reduce symptoms
Keto flu symptoms can start within the first two days of the diet
The keto diet is a popular, low-carb, high-fat diet that is often associated with weight loss. However, it can also lead to a group of symptoms known as the "keto flu" within the first two days of starting the diet. The keto flu is characterised by flu-like symptoms, including headache, fatigue, nausea, and constipation, among others. These symptoms are believed to be the result of the body's transition from using carbohydrates to burning fat for energy, also known as ketosis.
The keto flu can be unpleasant, but it is usually temporary, and there are several strategies to reduce its symptoms. One key recommendation is to increase water and salt intake, as the keto diet can lead to dehydration and electrolyte imbalances. Additionally, consuming more fat can help alleviate symptoms, as a sudden reduction in carb intake without increasing fat consumption can leave the body feeling starved. A gradual transition to the keto diet, rather than an abrupt change, can also help minimise the impact of the keto flu.
While the keto flu typically lasts only a few days, in some cases, it can persist for several weeks. If symptoms do not improve or if fever or vomiting occurs, it is advisable to consult a doctor. Although the keto diet is generally safe, it may not be suitable for everyone, including pregnant or breastfeeding individuals and children.
Overall, the keto flu is a common experience for many people starting the keto diet, but with proper management and a gradual transition, the symptoms can be minimised and usually resolve within a short period.
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The keto flu is caused by a transition from burning sugar to burning fat
The keto flu is a collection of symptoms experienced by some people when they first start a keto diet. The symptoms can feel similar to the flu and are caused by the body adapting to a new diet consisting of very few carbohydrates.
The keto diet is a very low-carbohydrate, high-fat, and moderate-protein diet. Typically, 70% to 80% fat, 10% to 20% protein, and 5% to 10% carbohydrates. This drastic reduction in carbohydrates can come as a shock to the body and may cause withdrawal-like symptoms, similar to those experienced when weaning off an addictive substance like caffeine.
Ketosis usually occurs during specific circumstances, such as starvation and fasting. However, it can also be reached by adopting a very low-carb diet like the keto diet. In ketosis, the accumulation of ketone bodies in the blood causes the body to burn ketones for energy instead of glucose. This transition to burning fat for energy can be confusing for the body and may result in flu-like symptoms.
The symptoms of keto flu usually appear within the first few days of starting the diet, ranging from mild to severe. The symptoms typically last a few days but can persist for several weeks in some cases. Some common symptoms of keto flu include diarrhea, constipation, trouble sleeping, fatigue, muscle soreness, and cravings.
While the keto flu can be unpleasant, it is usually temporary, and there are ways to reduce its symptoms. Staying hydrated, replacing electrolytes, getting enough rest, and gradually transitioning to the diet are some strategies to alleviate the symptoms.
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Symptoms can last from a few days to several weeks
The symptoms of keto flu can last from a few days to several weeks. While the symptoms are usually temporary, they can be unpleasant and, in some cases, persist for longer than a few days.
The duration of keto flu symptoms depends on the individual. Some people may experience symptoms for just a couple of days, while others may have symptoms for up to a month. In most cases, symptoms will gradually decrease as the body adapts to its new fuel source and gets used to converting ketones into energy.
If your symptoms don't improve after a couple of weeks, or if you experience symptoms such as fever, vomiting, or prolonged diarrhea, it is recommended to consult a doctor. Additionally, it is advised to consult a doctor before starting the keto diet, as it may not be suitable for everyone.
To help reduce the symptoms of keto flu and make the transition smoother, there are several strategies you can try. These include transitioning gradually by slowly cutting back on carbs while increasing fat and protein intake, staying hydrated, adjusting your workout routine, moderating caffeine intake, and getting enough sleep.
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The keto flu is not dangerous and will disappear once your body is in ketosis
The keto flu is a collection of symptoms experienced by some people when they start a keto diet. It is caused by the body adapting to a new diet consisting of very few carbohydrates. The symptoms can feel similar to the flu and are the result of the body withdrawing from its dependence on carbohydrates for energy.
The keto flu is not dangerous. While it can cause discomfort, it is not like the flu. You will not develop a fever, and the symptoms are very unlikely to incapacitate you. If you feel very ill, it is important to visit your doctor, as something else may be happening.
The keto flu usually lasts for a few days or up to several weeks. However, in extreme cases, it can last up to a month. Typically, the symptoms will gradually decrease as your body gets used to converting ketones into energy.
There are several ways to reduce the symptoms of the keto flu:
- Drink plenty of water. The keto diet can cause a rapid loss of water, increasing the risk of dehydration. Staying hydrated can help with symptoms like fatigue and muscle cramping.
- Transition gradually. If you plan to start a keto diet, slowly cut back on carbs while increasing your fat and protein intake. This can help you ease into the diet and make the transition smoother.
- Adjust your workout routine. Avoid strenuous exercise if you're experiencing keto flu symptoms. Focus on lighter activities such as walking or yoga instead.
- Get plenty of rest. Lack of sleep can cause levels of the stress hormone cortisol to rise, which can negatively impact your mood and make keto flu symptoms worse.
- Replace electrolytes. The keto diet restricts many foods that are high in potassium, including fruits, beans, and starchy vegetables. Getting adequate amounts of these important nutrients can help power you through the adaptation period.
By following these steps, you can help your body adjust to the keto diet and reduce the symptoms of the keto flu. Remember, the keto flu is a temporary condition that will disappear once your body enters ketosis and adjusts to this new way of eating.
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Staying hydrated and replenishing electrolytes can help reduce symptoms
The keto flu is a collection of symptoms experienced by some people when they first start a ketogenic diet. The symptoms can include fatigue, muscle soreness, headaches, and nausea, among others. The good news is that there are ways to reduce these symptoms, and one of the most important is staying hydrated and replenishing electrolytes.
When you eat carbohydrates, your body stores them as glucose, its main source of energy. On a ketogenic diet, you drastically reduce your carb intake, forcing your body to burn fat for fuel instead. This switch from burning sugar to burning fat is what causes keto flu. Your body is still looking for carbs because it hasn't yet learned how to burn fat efficiently.
When you reduce your carb intake, your body depletes your glucose stores, and you lose a lot of water weight. This can lead to dehydration, which is one of the main causes of keto flu symptoms like fatigue, headaches, and muscle cramps. Drinking plenty of water throughout the day can help reduce these symptoms. Aim for a minimum of 2.5 liters of fluid per day during the first week of keto.
The Role of Electrolytes
Not only do you lose water when you burn through your carb stores, but you also lose electrolytes. Electrolyte imbalances can cause severe symptoms such as muscle cramps and nausea. Replenishing electrolytes like sodium, potassium, magnesium, and calcium can help alleviate these symptoms. Try salting your food to taste or drinking bone broth, or consider taking an electrolyte supplement.
Other Tips to Reduce Keto Flu Symptoms
In addition to staying hydrated and replenishing electrolytes, there are a few other things you can do to reduce keto flu symptoms:
- Increase your fat intake: Eating more fat can help reduce cravings for carbs and ensure you feel satisfied after meals.
- Transition gradually: Instead of cutting out carbs all at once, reduce them gradually while increasing your fat and protein intake.
- Adjust your workout routine: Avoid strenuous exercise and focus on lighter activities like walking or yoga during the initial transition to keto.
- Moderate caffeine intake: Caffeine can interfere with sleep, which is already a challenge for many people on keto.
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Frequently asked questions
Symptoms of keto flu usually start within the first few days of starting a ketogenic diet. Some people may experience symptoms within the first two days, while others may not experience any symptoms at all.
Symptoms can include headache, brain fog, fatigue, irritability, nausea, constipation, diarrhoea, and trouble sleeping. These symptoms are caused by the body's transition from burning carbohydrates to burning fat for energy.
Keto flu symptoms typically last for a few days but can persist for several weeks in some cases. In most people, symptoms resolve within 10 days. However, if symptoms such as headaches, fatigue, cramps, or irritability last longer, it is recommended to consult a doctor.
There are several strategies to relieve keto flu symptoms:
- Increase salt and water intake: Drink a glass of water with half a teaspoon of salt stirred into it, or drink bone broth or salted bouillon.
- Consume more fat: Increasing fat intake can help reduce symptoms by ensuring the body has enough energy.
- Transition gradually: Slowly reduce carbohydrate intake while increasing fat and protein.
- Stay hydrated: Drink plenty of water throughout the day to prevent dehydration.