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16 August 2022

The Keto Flu: Symptoms and How to Get Rid of It

 The Keto Flu: Symptoms and How to Get Rid of It



The ketogenic diet has gained popularity as a natural way to lose weight and improve health.

The diet is very low in carbohydrates, high in fat and moderate in protein.

While the diet is considered safe for most people, it’s associated with some unpleasant side effects.

The keto flu, also called the carb flu, is a term coined by followers to describe the symptoms they experience when beginning the diet.

This article investigates what the keto flu is, why it happens and how to ease its symptoms.


What is the keto flu?


The keto flu is a collection of symptoms experienced by some people when they first start the keto diet.

These symptoms, which can feel similar to the flu, are caused by the body adapting to a new diet consisting of very little carbohydrates.

Reducing your carb intake forces your body to burn ketones for energy instead of glucose.

Ketones are byproducts of fat breakdown and become the main fuel source when following a ketogenic diet.

Normally, fat is reserved as a secondary fuel source to use when glucose is not available.

This switch to burning fat for energy is called ketosis. It occurs during specific circumstances, including starvation and fasting (1Trusted Source).

however, ketosis can also be reached by adopting a very low-carb diet.

In a ketogenic diet, carbohydrates are typically reduced to under 50 grams per day (2Trusted Source).

This drastic reduction 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 (3Trusted Source).


 Symptoms

Switching to a very low-carb diet is a major change, and your body may need time to adapt to this new way of eating.

For some people, this transition period can be especially difficult.

Signs of the keto flu may start popping up within the first few days of cutting back on carbs.

Symptoms can range from mild to severe and vary from person to person.

While some people may transition to a ketogenic diet without any side effects, others may experience one or more of the following symptoms (4Trusted Source):


Nausea

Vomiting

Constipation

Diarrhea

Headache

Irritability

Weakness

Muscle cramps

Dizziness

Poor concentration

Stomach pain

Muscle soreness

Difficulty sleeping

Sugar cravings

These symptoms are commonly reported by those who have just begun the ketogenic diet and can be distressing.

Symptoms typically last about a week, though some people may experience them for a longer period of time.

While these side effects may cause some dieters to throw in the towel, there are ways to reduce them.

How to get rid of the keto flu

The keto flu can make you feel miserable.

Luckily, there are ways to reduce its flu-like symptoms and help your body get through the transition period more easily.

Stay hydrated

Drinking enough water is necessary for optimal health and can also help reduce symptoms.

A keto diet can cause you to rapidly shed water stores, increasing the risk of dehydration (5Trusted Source).

This is because glycogen, the stored form of carbohydrates, binds to water in the body. When dietary carbohydrates are reduced, glycogen levels plummet and water is excreted from the body (6Trusted Source).

Staying hydrated can help with symptoms like fatigue and muscle cramping (7Trusted Source).

Replacing fluids is especially important when you are experiencing keto-flu-associated diarrhea, which can cause additional fluid loss (8Trusted Source).

Avoid strenuous exercise

While exercise is important for staying healthy and keeping body weight in check, strenuous exercise should be avoided when experiencing keto-flu symptoms.

Fatigue, muscle cramps and stomach discomfort are common in the first week of following a ketogenic diet, so it may be a good idea to give your body a rest.

Activities like intense biking, running, weight lifting and strenuous workouts may have to be put on the back burner while your system adapts to new fuel sources.

While these types of exercise should be avoided if you are experiencing the keto flu, light activities like walking, yoga or leisurely biking may improve symptoms.

Replace electrolytes

Replacing dietary electrolytes may help reduce keto-flu symptoms.

When following a ketogenic diet, levels of insulin, an important hormone that helps the body absorb glucose from the bloodstream, decrease.

When insulin levels decrease, the kidneys release excess sodium from the body (9Trusted Source).

What’s more, the keto diet restricts many foods that are high in potassium, including fruits, beans and starchy vegetables.

Getting adequate amounts of these important nutrients is an excellent way to power through the adaptation period of the diet.

Salting food to taste and including potassium-rich, keto-friendly foods like green leafy vegetables and avocados are an excellent way to ensure you are maintaining a healthy balance of electrolytes.

These foods are also high in magnesium, which may help reduce muscle cramps, sleep issues and headaches (10Trusted Source).


Get adequate sleep

Fatigue and irritability are common complaints of people who are adapting to a ketogenic diet.

Lack of sleep causes levels of the stress hormone cortisol to rise in the body, which can negatively impact mood and make keto-flu symptoms worse (11Trusted Source, 12Trusted Source).

If you are having a difficult time falling or staying asleep, try one of the following tips:

Reduce caffeine intake: Caffeine is a stimulant that may negatively impact sleep. If you drink caffeinated beverages, only do so in the morning so your sleep is not affected (13Trusted Source).

Cut out ambient light: Shut off cell phones, computers and televisions in the bedroom to create a dark environment and promote restful sleep (14Trusted Source).

Take a bath: Adding Epsom salt or lavender essential oil to your bath is a relaxing way to wind down and get ready for sleep (15Trusted Source).

Get up early: Waking at the same time every day and avoiding oversleeping may help normalize your sleep patterns and improve sleep quality over time (16Trusted Source).

Make sure you are eating enough fat (and carbs)

Transitioning to a very low-carb diet can cause you to crave foods that are restricted on the ketogenic diet, such as cookies, bread, pasta and bagels.

However, eating enough fat, the primary fuel source on the ketogenic diet, will help reduce cravings and keep you feeling satisfied.

In fact, research shows that low-carb diets help reduce cravings for sweets and high-carb foods (17Trusted Source).

Those having a difficult time adapting to the ketogenic diet may have to eliminate carbohydrates gradually, rather than all at once.

Slowly cutting back on carbs, while increasing fat and protein in your diet, may help make the transition smoother and decrease keto-flu symptoms.





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