Top 11 Signs You Are in Ketosis: 6 Health Benefits & 5 Negative Effects (2024)

  • 11 Signs of Ketosis
    • Signs that suggest you are in ketosis
  • Ketosis States
    • What is ketosis state?
  • 6 Health Benefits
    • 6 Health benefits of ketosis
  • 5 Negative Effects
    • 5 Negative effects of ketosis
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Signs that suggest you are in ketosis

Top 11 Signs You Are in Ketosis: 6 Health Benefits & 5 Negative Effects (1)

Ketosis is defined as a natural metabolic process that involves the production of energy from the breakdown of fat into ketone bodies. Signs that suggest you are in ketosis include fatigue, bad breath, dry mouth, weight loss, flu-like symptoms, and decreased hunger and thirst.

The following 11 signs and symptoms indicate the body is in ketosis:

  1. Feeling tired or fatigued (typically short term)
  2. Bad breath
  3. Dry mouth
  4. Increased thirst
  5. Decreased urination
  6. Change in bowel movements (diarrhea or constipation)
  7. Decreased appetite
  8. Decreased hunger
  9. Weight loss
  10. Experiencing flu symptoms, such as headache and nausea
  11. Insomnia

What is ketosis state?

Ketosis is defined as a natural metabolic process that involves the production of energy from the breakdown of fat into ketone bodies. This happens mostly in these two states:

  • Starvation is when there is limited access to carbohydrates or glucose in the body, so the liver utilizes fat to provide most of the fuel for the body.
  • Dieting, especially when eating an exceptionally low-carb diet, levels of the hormone insulingo down and fatty acids are released from body fat stores in large amounts. Many of these fatty acids are transported to the liver, where they are oxidized and turned into ketones (or ketone bodies). These molecules are utilized to provide energy for the body.

A ketogenic diet can help lose weight fairly quickly because it reduces the body’s stores of glycogen and water. However, in the long term, it can suppress the appetite, leading to a lower calorie intake. The body being in ketosis has several health benefits besides weight loss. Ketosis is safe in most healthy people, but it can have some side effects, especially in the beginning.

The easiest way to confirm ketosis in the bodyis by getting a test done using a ketone meter. This device is available in pharmacies. A urine sample can be used for the test.

6 Health benefits of ketosis

Following a ketogenic diet has several health benefits.

  • Weight loss: The ketogenic diet may help promote weight lossin several ways, including boosting metabolism and reducing appetite. Ketogenic diets consist of foods that satiate a person and may reduce hunger-stimulating hormones. For these reasons, following a keto diet may reduce appetite and promote weight loss.
  • Improvement in acne: Acnehas several different causes. In some individuals, a diet high in sugar may spur an acne attack. Also, eating a diet high in processed and refinedcarbohydratesmay alter the balance of gut bacteria and cause blood sugar to rise and fall significantly, both of which can adversely affect skin health. A ketogenic diet is believed to reduce acne symptoms in some people.
  • Destroys cancer cells: Ketogenic diet is a safe and suitable complementary treatment to use alongside chemotherapy and radiation therapyin people with certain cancers. This is because it would cause more oxidative stressin cancer cells than in normal cells, causing them to die.
  • Heart health: Eating healthful fats (such as avocados) instead of less healthful fats (such as pork rinds) helps improve heart health by reducing cholesterol. However, some cardiologists have expressed concern over the long-term safety of the ketogenic diet.
  • Protect brain function: Ketones that are generated during the keto diet provide neuroprotective benefits, which means they can strengthen and protect the brain and nerve cells. A keto diet may help a person prevent or manage conditions, such as Alzheimer’s disease.
  • Effect on epilepsy: Ketosis can reduce seizures in people suffering from epilepsy, especially those who did not respond to other treatment methods. Many children with epilepsy have experienced significant reductions in seizures while following a ketogenic diet and some have seen complete remission.
SLIDESHOW How to Lose Weight Without Dieting: 24 Fast Facts See Slideshow

5 Negative effects of ketosis

Ketosis is safe for most people, but it can have some negative effects, especially in the beginning. They are typically temporary and not serious. The 5 negative effects include

  • Keto flu: At the beginning of ketosis, people may experience a range of negative symptoms. They are often called the “low carb flu” or “keto flu” because they resemble symptoms of the flu.
  • Bad breath: One of the more common side effects of ketosis is bad breath, often described as fruity and slightly sweet. It’s caused by acetone, a ketone that’s a by-product of fat metabolism.
  • Leg cramps: Leg cramps in ketosis usually stem from dehydration and loss of minerals. This is because ketosis causes a reduction in water weight. Glycogen, the storage form of glucose in the muscles and liver, binds water. This gets flushed out during reduced carb intake. It’s one of the main reasons why people lose weight rapidlyin the first week of a very low-carb diet.
  • Digestive problems: Dietary changes can sometimes lead to digestive issues. This is also true for ketogenic diets and constipation is a common side effect in the beginning. This is most commonly caused by not eating enough fiber and not drinking enough fluids.
  • Kidney problems: People with poor kidney function must avoid a ketogenic diet. The keto diet may increase the risk of kidney stones. Similarly, it stresses the liver to work more and produce ketones.

Individuals with poor kidney function, liver disorders, gallbladder stones, and pancreatic problems should stay away from the keto diet unless approved by their healthcare provider.

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References

WebMD: "Ketosis." https://www.webmd.com/diabetes/type-1-diabetes-guide/what-is-ketosis#1

StatPearls: "Ketogenic Diet." https://www.ncbi.nlm.nih.gov/books/NBK499830/

Top 11 Signs You Are in Ketosis: 6 Health Benefits & 5 Negative Effects (2024)

FAQs

Top 11 Signs You Are in Ketosis: 6 Health Benefits & 5 Negative Effects? ›

Ketosis is defined as a natural metabolic process that involves the production of energy from the breakdown of fat into ketone bodies. Signs that suggest you are in ketosis include fatigue, bad breath, dry mouth, weight loss, flu-like symptoms, and decreased hunger and thirst.

How do I tell if I am in ketosis? ›

Ketosis is defined as a natural metabolic process that involves the production of energy from the breakdown of fat into ketone bodies. Signs that suggest you are in ketosis include fatigue, bad breath, dry mouth, weight loss, flu-like symptoms, and decreased hunger and thirst.

What is ketosis smell? ›

Some describe keto breath as having a metallic taste in their mouth and a smell that's sweet, fruity or similar to nail polish remover. This is caused by the chemicals your body creates during ketosis, which are released from the body by exhaling.

What happens when your body goes into ketosis? ›

Ketosis is a metabolic state that occurs when your body burns fat for energy instead of glucose. The keto diet has many possible benefits including potential weight loss, increased energy and treating chronic illness. However, the diet can produce side effects including “keto” breath and constipation.

What foods get you into ketosis fast? ›

Eating a diet rich in fat while also limiting carbs prompts your body to burn fat, rather than glucose, for fuel. That's the basis of ketosis. People following a ketogenic diet get 75% of their calories from fats, which ideally should come from avocado, nuts, olive oils, and other unsaturated, or healthy, fats.

What color is urine when in ketosis? ›

Any color on the ketone strip, from pink to purple, indicates fat burning (ketosis). Some people get a darker ketone strip color and achieve the same weight loss results as someone with a lighter color. Your “positive” color result can vary throughout the day for many reasons.

Does urine smell when in ketosis? ›

When a person eats a lot of protein instead of carbohydrates, their body uses protein and stored fat for energy instead of using carbohydrates as it would usually do. As a result, the ketone level in the blood will rise. When these ketones leave the body in the urine, the urine may smell sweet or similar to popcorn.

What organ does ketosis affect? ›

This shift involves increasing fatty acid oxidation and production of ketones in the liver as an alternate energy source for the brain as well as the skeletal muscles, heart, and kidney. Low levels of ketones are always present in the blood and increase under circ*mstances of low glucose availability.

Do you pee a lot when in ketosis? ›

You may urinate more than normal.

Masson also said that your kidneys pump out more fluid and electrolytes when your body is in ketosis. This may affect your bladder and cause you to urinate more often, she said.

Can you lose belly fat with keto? ›

Losing central fat (belly fat) is one of the many benefits of a well-formulated ketogenic diet.

What food is not allowed in keto? ›

10 Foods You Can't Eat on the Keto Diet & Their Substitutes
  • Grains and Starches. ...
  • Sugary Foods and Sweets. ...
  • High-Carb Fruits. ...
  • Starchy Vegetables. ...
  • Legumes and Beans. ...
  • Processed Foods with Hidden Carbs. ...
  • Alcohol and co*cktails. ...
  • High-Carb Sauces and Condiments.

What foods do not break ketosis? ›

Foods you can eat on the keto diet include fish and seafood, meat and poultry, non-starchy vegetables like bell peppers, broccoli, and zucchini, avocados, berries, nuts and seeds, eggs, high-fat dairy products, olive oil and other oils, and high-cocoa chocolate.

What foods kick you from ketosis? ›

Sausages, bacon with sugar, and glazed ham are just a few examples of processed meats that can knock you out of ketosis. While many dairy products are high in healthy fats and protein, others are high in carbohydrates. Animal milk, in particular, is high in carbs and should be avoided entirely on a ketogenic diet.

How do you check your ketosis level? ›

To check blood ketones at home, you may use a blood glucose meter that also tests for ketones. You will use a device to prick your finger. You'll collect a drop of blood on a ketone test strip that is inserted into the meter. The meter will show your ketone levels.

What does coming out of ketosis feel like? ›

If you don't transition properly off the ketogenic diet, you could be setting yourself up for some not-so-pretty symptoms: Weight gain. Bloating and other bathroom issues. Blood sugar spikes, which could cause fatigue and irritability.

How long is it safe to be in ketosis? ›

Gulotta recommends staying on keto for six months max before reintroducing more carbs to your diet. And Scott Keatley, RDN, of Keatley Medical Nutrition Therapy in New York City, agrees: “The science hasn't gotten to the point where I would be comfortable recommending it as a forever diet,” he says.

How do you feel when you break ketosis? ›

A significant cheat, even for one meal, can stall your weight loss, make you feel sluggish, experience significant brain fog, and if you're somewhat new to keto, perhaps cause you go through keto flu symptoms all over again. More than that, you will need to work your way into ketosis again.

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