Signs and Symptoms You Are in Ketosis - Mirabile (2024)

Signs and Symptoms You Are in Ketosis - Mirabile (1)

When people consider losing weight, many may opt to try a ketogenic, or keto, diet. This type of diet can offer many benefits, as it relies on a high-fat, low-carb diet for weight loss purposes. When performed correctly, your body may enter into what’s called ketosis, which is where you reap the most benefits from this type of diet.

To ensure you are getting the most out of the keto diet, you’ll want to look out for a few key signs and symptoms that you are in ketosis.

What Is Ketosis?

First, let’s dive a little bit deeper into what ketosis actually is. Ketosis is a metabolic process that occurs in your body when fat is burned—rather than carbohydrates—to produce energy. The process itself gets its name because of chemical compounds called ketones, which are produced by your liver when a proper keto diet is upheld.

When this process is achieved at its fullest effect, your body is considered to be in ketosis. This is where you will reap the most benefits from a keto diet, since fat burn is directly associated with weight loss. Some other health benefits of ketosis can include:

  • Managing blood sugar levels
  • Protecting brain function
  • Improving acne
  • Lowering the risk of high blood pressure and cardiovascular disease
  • Balancing cholesterol levels

To induce ketosis, a proper diet must be followed. This means dramatically reducing your carb intake and potentially even fasting for long periods of time. However, this does not mean starvation; instead, you should focus on tracking macros (fats, proteins, and carbohydrates) with a high-fat, low-carb, and moderate-protein balance.

7 Signs You Are in Ketosis

The signs and symptoms of ketosis can vary from person to person. Overall, there are a few common ketosis symptoms you should look out for to indicate that your keto diet is working.

1. Weight Loss

As mentioned above, most people try a keto diet when they are trying to lose weight. If you notice those pounds starting to fall off as you step on the scale, your body may be in ketosis.

It’s important to mention that both long- and short-term weight loss will occur. You’ll likely notice an initial rapid decline in weight in the first week or so of your keto weight loss program, but this is typically from the reduction of water weight.

For the long-term, as long as you remain in a calorie deficit—meaning, you are consuming fewer calories than you burn each day—and you are maintaining your diet, you will continue to lose body fat consistently over time.

2. Dry Mouth and Bad Breath

As your body drops water weight, you will likely notice an increase in your thirst levels and a dry mouth. In fact, dehydration can be a common side effect of ketosis if proper diet and nutrition are not followed, potentially leading to other more serious health complications. This is why it’s incredibly important to consistently drink fluids.

You may also experience bad breath while in ketosis. This is because the ketones produced by your liver must leave your body, either through your breath or urine. Ketones like acetone, acetophenone, and benzophenone can all be responsible for the sweet or fruity odor you may notice. While bad breath isn’t always pleasant, it is a sign that your body is entering into ketosis.

Signs and Symptoms You Are in Ketosis - Mirabile (2)

3. Fatigue or Sleep Changes

You may experience short-term fatigue or changes in your sleeping patterns during the first few weeks of ketosis. Switching to a keto diet can be a difficult transition for the human body, especially because it’s so used to being fueled by carbs. As a result, you may feel weaker or more tired than usual. You also may experience nighttime waking or difficulty falling asleep.

We see many patients give up on their keto diet when they begin to feel more tired than usual. However, it’s important to understand that fatigue and sleep changes are short-term and should be powered through if you want to benefit from ketosis. Consider taking electrolyte supplements during this time to help with fatigue.

4. Short-Term Decreases in Exercise Performance

Another early sign that you are in ketosis is if you experience a short-term decrease in exercise performance. Because you are no longer fueling your body with carbohydrates, your muscles’ glycogen—a form of glucose—is reduced, which typically is the most effective fuel source for intense workouts.

Fortunately, your exercise performance should return to normal after several weeks. In these cases, it’s much more important to stick with the keto diet for as long as possible, since it can be beneficial for certain sports requiring higher levels of endurance.

5. Muscle Spasms and Cramps

With less water weight and less glycogen stored in your muscles, you may experience muscle cramps and spasms while in ketosis. This can be due to electrolyte and hydration imbalances. Electrolytes are responsible for carrying electrical signals to the cells in your body, and disrupting these signals can often lead to contractions and muscle spasms. Additionally, dehydration often leads to a loss of minerals in your body, which can result in cramping.

To combat muscle cramps, you’ll want to ensure you eat a well-balanced diet full of electrolyte-rich foods, such as those with magnesium, potassium, calcium, and sodium.

6. Appetite Suppression

Being on a ketogenic diet can lead to a decreased appetite. If you find that you’re not as hungry during the day or can go longer between meals, this is a sign that you are in ketosis. One reason for this could be that the change in diet affects your body’s hunger hormones. You are likely also eating more protein than before, making you feel fuller for longer.

7. Change in Bowel Movements

You’ve likely noticed that any large dietary change has a direct impact on your bowel movements. When your body enters ketosis, you may experience several digestion changes that can lead to constipation and diarrhea.

To reduce any digestion or stomach complaints, you’ll want to make sure you’re drinking plenty of water. Additionally, focus on eating fiber-rich foods to help with constipation. Taking probiotics can also be a great way to encourage a healthy gut while in ketosis.

While entering ketosis can result in several changes to your body, symptoms do typically subside and its long-term weight-loss effects are often worth any discomfort associated with it. Of course, if you recently started the ketogenic diet and are concerned about any bodily changes you experience, it’s always best to speak to your doctor.

Mirabile M.D. is here to support your weight loss journey! Contact us today to learn how we can support you!

Signs and Symptoms You Are in Ketosis - Mirabile (2024)

FAQs

How do you know when your body is in full ketosis? ›

You can find out how much ketosis is going on in your body by testing for ketones in your blood or urine. You can buy test strips to check your pee at home. Some blood sugar meters can measure ketones in your blood. If you don't know how and when to test your ketones, talk to your doctor or diabetes instructor.

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.

What are the physical symptoms when starting keto? ›

Nausea, constipation, headaches, fatigue and sugar cravings are common in some people who are adapting to a high-fat, low-carb diet. Staying hydrated, replacing lost electrolytes, getting enough rest and ensuring you are consuming proper amounts of fat and carbohydrates are ways to reduce keto-flu symptoms.

What is the first stage of ketosis? ›

Stage One - Glycogen Depletion

During the first stage of ketosis, your body will still be using any fuel provided by your last high-carbohydrate meal and will begin to shift towards using glycogen (your liver glucose stores) and other non-bound, free fatty acids for energy.

Do you pee more 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.

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.

Does your pee smell in ketosis? ›

When the body excretes these in the urine, they can make the urine smell like popcorn. A high level of ketones in the urine or blood occurs when a person enters ketosis. The body will produce ketones when it does not have enough sugar or glucose for fuel. This might happen overnight or when a person is fasting.

Does drinking water reduce ketones? ›

General treatment guidelines to control ketones include: Drinking plenty of water or other calorie-free fluids to aid in the removal of ketones from the body. Taking insulin as directed by the physician to lower your blood glucose level. Rechecking your blood glucose and ketone levels every three to four hours.

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 are the worst days of keto? ›

You might not feel your best today – typically, the second day is the beginning of what is known as the “carb flu.” The carb flu is the experience of flu-like symptoms that come from your body being starved of carbohydrates. Your body is hard at work figuring out how to keep going without glycogen.

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 to know if you are in ketosis without testing? ›

10 Ways to Tell You're in Ketosis Without Testing
  • Bad breath.
  • Weight loss.
  • Increased blood ketones.
  • Increased breath or urine ketones.
  • Appetite suppression.
  • Focus & energy.
  • Short-term fatigue.
  • Temporary decreased performance.

How can I tell when I'm 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.

How fast do you come out of ketosis? ›

Transitioning into or out of ketosis doesn't happen instantly and it isn't always easy. The change can take between three to six weeks as your body adjusts.

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.

How long does it take to get into full blown ketosis? ›

Getting into ketosis takes about two to four days, on average, because that's how long it takes for glycogen reserves to be depleted after someone starts eating a keto diet with under 50 grams of carbs per day. Fasting, limiting carbs, and MCT oil supplements can speed up the ketosis timeline. EH Project.

What does a full day of keto look like? ›

Ketogenic diets vary but will consist of about 70–75% fat, 15–20% protein, and 5–10% of carbs per day. Focus on high fat, low carb foods like eggs, meats, dairy, and low carb vegetables, as well as sugar-free beverages. Be sure to limit highly processed foods and trans fats.

Do you feel full when in ketosis? ›

"When you are in a state of ketosis, one of the classic signs is feeling full," said board-certified sports dietitian Kylene Bogden, MS, RDN, CSSD, LDN, CLT. If you do happen to feel hungry, she suggested that you may not be following the plan correctly.

How do you know if you break ketosis? ›

You can use tools that measure your body's ketone levels, such as ketone breath meters, blood ketone meters, and keto urine strips — which tend to be the cheapest and easiest method. If you've cheated on keto, you'll need to strictly adhere to the diet to reenter ketosis.

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