Published On By Rachel Nall

How Long Does It Take To Get Into Ketosis

Ketosis is a metabolic state in which the body could switch from using glucose for energy to utilizing ketones, which are produced by the breakdown of stored fat. When there is a lack of glucose, the body burns fat for energy instead.

Ketosis may help people who want to lose body fat. However, reaching Ketosis can be challenging, and the time it takes may vary among different people.

There are certain factors that may influence your ketosis rate, including your dietary choices and activity levels. Other factors like age, metabolism, sleep health, and stress levels may also affect how long it would take for you to achieve ketosis state.

This article will provide you with a proper understanding of Ketosis, its advantages, and potential drawbacks. It will also disclose some of the best evidence-based strategies to achieve Ketosis.

What Is Ketosis?

Ketosis is when the body uses fats rather than carbs as its main energy source. Reducing your carb intake could help you achieve Ketosis by accumulating ketone bodies in the blood.

The body usually uses glucose derived from carbohydrates as its primary energy source. In response, it produces ketones as a byproduct. These ketones then become the body and brain’s primary fuel source.

Ketosis could be achieved through a ketogenic diet. A ketogenic diet restricts daily carbohydrate intake to 20-50 grams. It forces the body to rely on fat as an energy source. It usually takes 2-4 days of following a low-carb diet to enter Ketosis.

What is a Ketosis Diet?

The ketogenic (keto) diet is a dietary approach that includes low carbs, moderate protein, and high fat intake. It aims to shift the body’s fuel source from carbohydrates to fat, resulting in Ketosis.

A keto diet usually consists of 70-80% fats, 10-20% proteins, and 5-10% carbohydrates. Fat-rich foods such as meats, fish, eggs, nuts, seeds, and oils are emphasized to adhere to the keto diet.

7 Strategies To Achieve Ketosis

  1. Try Intermittent Fasting

    Intermittent fasting for more than 12 hours could help achieve a state of Ketosis. Fasting drains the body of its glycogen stores and burns stored fat for body fuel. This process leads to the production of ketones, which are used as an alternative fuel source. Intermittent fasting may help manage weight gain, diabetes complications, and cardiovascular disease.

  2. Consume More Healthy Fat

    You may focus on increasing healthy fat intake by including olive oil, flaxseed oil, and fatty fish like salmon. They contain healthy fats that may provide essential nutrients and contain beneficial omega-3 fatty acids.

    Although it is essential to increase healthy fat intake, it is advisable to limit saturated and trans fats. These fats are found in fried foods and could negatively affect heart health.

  3. Restrict Carbohydrate Intake

    Reducing carbohydrate intake is required to enter and maintain Ketosis. Controlling your daily carb intake to 50 grams could help keep you in a ketogenic state. However, the exact carb limit may vary from person to person. Some people might need to restrict their carbohydrate intake to as low as 20 grams per day to achieve Ketosis.

    Consuming low carbohydrates, healthy fats, and moderate amounts of protein could increase your chances of inducing Ketosis.

  4. Increase Regular Physical Activity

    Engaging in physical activity could help deplete the body’s glycogen stores and increase the body’s energy expenditure, which promotes fat burning.

    Regular physical activity could also enhance the resting metabolic rate, which may help the body burn calories (even at rest). It could promote the body’s fat-burning potential, contributing to healthy weight loss.

  5. Consider More MCT Oil

    MCT oil includes fatty acids that could be easily absorbed and metabolized by the body. They could be quickly converted into ketones in the liver.

    Including MCT oil in your ketogenic diet could help increase ketone production and accelerate the transition into Ketosis. It may provide an immediate energy source, enhance mental clarity,

    and reduce cravings for carbohydrates.

    MCT oil may also improve exercise performance and boost endurance and energy levels.

    These properties could help you stay motivated to exercise during Ketosis, potentially aiding your weight loss efforts.

  6. Monitor Protein Intake

    A standard suggestion for consuming protein is around 0.36 grams of protein/pound of body weight daily.

    However, it is essential to strike the right balance between protein and fat intake on a ketogenic diet. Consuming too much protein can potentially inhibit Ketosis. Therefore, it’s necessary to focus on healthy fats as the primary energy source on a keto diet.

  7. Test Ketone Levels

    Testing ketone levels may help you determine whether you have achieved Ketosis and also let you monitor the effectiveness of your dietary choices.

    • Urine test: It involves using ketone test strips that might change color in the presence of ketones.
    • Breath test: It measures the levels of acetone, a ketone, in the breath.
    • Blood test: It involves pricking the finger and using a blood ketone meter that could measure beta-hydroxybutyrate (BHB) levels.

Advantages Of Ketosis

There are some potential health advantages of Ketosis in the long term. However, more detailed research is required to support its claim for the sustained health benefits of consuming extremely low carbs to support weight management. Some of the health advantages of Ketosis may include:

  • Ketosis could reduce hunger and cravings, making it easier to follow a calorie-restricted diet.
  • It also promotes fat burning, which can aid in losing belly fat while preserving lean mass.
  • The ketosis strategy is used as a therapeutic approach for epilepsy.
  • Ketosis may benefit people with type 2 diabetes.
  • It may lower blood pressure, improve HDL (“good”) cholesterol levels, and decrease triglycerides.
  • Ketosis could also improve energy levels and reduce mental fatigue.

Side Effects Of Ketosis

  1. Keto Flu

    People starting a ketogenic diet might experience a common side effect called the “keto flu.” Symptoms resembling the flu, like nausea, digestive discomfort, fatigue, and lethargy, might occur during this period.

    The first few days of a ketogenic diet could be challenging as the body adapts to using fat as its fuel source instead of carbohydrates. Fortunately, these symptoms generally subside after a few days as the body adjusts to the new metabolic state.

  2. Risk of Weight Gain

    The keto diet is restrictive, eliminating many high-carb foods like grains, fruits, and starchy vegetables. This restriction could make it challenging to maintain the diet long-term and may lead to feelings of deprivation.

    A ketogenic diet can potentially contribute to disordered eating patterns. It could result in a cycle of restriction and overeating, which could contribute to weight gain over time.

  3. Muscle Mass Loss

    The ketogenic diet, if followed improperly, may contribute to muscle loss. A loss of muscle mass may harm your resting metabolic rate, making it more difficult to keep or lose weight in the long term.

  4. Diarrhea

    The ketogenic diet may cause diarrhea. It may cause an overload of fat intake or a lack of dietary fiber. This change in macronutrient composition could stress the gallbladder, leading to diarrhea. Reducing carbohydrate-rich foods while in Ketosis may also result in fiber deficiency, contributing to digestive issues.

  5. Ketoacidosis

    Ketoacidosis is a potentially dangerous condition that could occur in people with diabetes who are following the ketogenic diet. It is an abnormal and potentially fatal state characterized by high levels of ketones and blood acidity.

    When the body switches to Ketosis, it produces and stores excess ketones, making the blood too acidic. It may endanger vital organs such as the liver, kidneys, and brain.

    Time And Amount Of Carbs Required For Ketosis

    The timeline for entering Ketosis may range from two to four days for people who take 20-50 grams of carbohydrates daily. However, it’s worth mentioning that the time to reach Ketosis differs for everyone.

Must Visit: Are Beans Keto? A Detailed Analysis

Precautions & Safety

  • People with type 1 diabetes should refrain from Ketosis as it increases the risk of developing ketoacidosis, a potentially life-threatening condition.
  • People with liver failure or pancreatitis should avoid the ketogenic diet due to the potential strain it may place on these organs.
  • If you have a past diagnosis of high cholesterol, it is critical to work with a doctor to monitor lipid levels while on a ketogenic diet.

Frequently Asked Questions

  1. Can Ketosis Be Achieved Without Following a Ketogenic Diet?
    Ketosis may be achieved through other methods, such as fasting, consuming a very low-carb diet, or using exogenous ketone supplements. However, the effectiveness and time required may vary.
  2. What Are Some Common Signs That Indicate the Body Is in a State of Ketosis?
    Common signs that may indicate a ketosis state include dry mouth, increased thirst, frequent urination, decreased appetite, and weight loss. However, these signs might also indicate the presence of other health issues.
  3. Are There Any Long-Term Risks or Side Effects Associated With Being in Ketosis?
    There are potential long-term risks and side effects associated with being in Ketosis. These include nutrient deficiencies, constipation, and the possibility of ketoacidosis for people with diabetes.
  4. Can Ketosis Be Beneficial for Individuals With Certain Medical Conditions?
    Ketosis may offer potential benefits for people with certain medical conditions, like thyroid disorders or high blood pressure. However, a doctor’s consultation is a must in these cases.
  5. Are There Any Specific Dietary Recommendations to Maintain Ketosis?
    Maintaining Ketosis while following a vegetarian or vegan diet could be challenging due to the limited availability of plant-based, low-carb, high-fat foods. However, it is possible by focusing on low-carb vegetables, plant-based fats, and protein sources like tofu, tempeh, and seitan.


Achieving a ketosis phase could help you lose weight, improve body composition, and reduce the likelihood of developing metabolic disorders. Some people may achieve Ketosis in a few days, while others may take longer.

To find out whether you’ve achieved Ketosis or not, you can use ketone measurement tools such

as blood, breath, and urine test kits.

Consuming a diet rich in healthy fats, getting enough rest and sleep, and lowering carb intake could get you into Ketosis sooner. Meanwhile, restricting unhealthy fat could make your journey to Ketosis easier.

  • The information in this article is for informational purposes only and should not be considered medical advice.
  • It is not recommended to disregard/delay seeking professional medical advice or treatment because of what you read or accessed through this article .
  • The results may vary from individual to individual. Consult your doctor for any underlying medical conditions or if you are on any prescribed medicines before following health tips or instructions.

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