Keto Fat Adaptation: Common Roadblocks

Fat adaptation is the process by which your body switches from burning glucose (carbohydrates) to burning fat for energy. It is a crucial part of the ketogenic diet, as it allows your body to enter a state of ketosis, where it produces ketones for energy. However, some people may struggle to become fat-adapted, even after being on a ketogenic diet for a while. In this blog, we will explore some common reasons why you may be having difficulty getting fat-adapted and how to overcome them.

Unlocking Fat Adaptation: Overcoming Common Obstacles on Keto

Getting fat-adapted can be a challenging process, especially if you’re new to a ketogenic diet. Fat adaptation is the state where your body becomes efficient at using fat as fuel instead of glucose. This metabolic shift can take several weeks or even months, and during this time, you may experience a variety of symptoms, including fatigue, brain fog, and difficulty concentrating. However, if you find that you’re having difficulty getting fat adapted, there could be several reasons why.

Top 7 Mistakes

1. Not being in a calorie deficit

Not being in a calorie deficit can impede the ability to become fat adapted on the ketogenic diet. This is because when there is an excess of calories, the body will prioritize using glucose for energy instead of fat. To enter a state of ketosis, the body needs to deplete its glycogen stores and start producing ketones from stored fat. However, if there are too many calories available, the body will not need to use its fat stores for energy and therefore, will not enter ketosis. To achieve fat adaptation, it’s crucial to maintain a calorie deficit so that the body can burn through its stored glycogen and fat. However, it’s also important not to restrict calories too much for too long, as it can slow down the metabolic rate overtime. Finding the right balance between calorie deficit and nutrient-dense foods is key to supporting fat adaptation on a ketogenic diet.

2. Snacking between meals

One reason why you might be having difficulty getting fat-adapted is that you’re not giving your body enough time between meals. Snacking too frequently can prevent your body from tapping into its fat stores and utilizing them for energy. When you eat, your body releases insulin to shuttle glucose into your cells for energy. However, insulin also inhibits the breakdown of fat, which means that if you’re constantly snacking, your body won’t have a chance to use its stored fat for fuel.

3. Consuming too many carbs

When following a ketogenic diet, the goal is to drastically reduce carbohydrate intake to force the body to use fat for energy instead of glucose. Consuming too many carbs can prevent the body from entering a state of ketosis, which is necessary for fat adaptation. When the body has an excess of carbohydrates, it will use glucose as its primary fuel source and store excess glucose as glycogen in the liver and muscles. This can prevent the body from needing to use stored fat for energy, which is necessary for fat adaptation. Consuming too many carbs can also cause insulin levels to spike, which can lead to cravings and overeating. It’s important to monitor carbohydrate intake on a ketogenic diet to ensure that the body is in a state of ketosis and able to adapt to using fat for fuel. Thus, aiming for 20-30 carbs per day is a good rule of thumb for achieving ketosis and promoting fat adaptation.

4. Not consuming enough fats

Eating enough fat is a crucial component of achieving fat adaptation on a ketogenic diet. Fat is the primary fuel source for the body on a keto diet, as carbs are restricted. When the body is deprived of carbohydrates, it switches to using fat as its main source of energy, and this process is called ketosis. In order to achieve this state, it is essential to consume enough healthy fats in your diet. If you do not consume enough fat, your body will not have enough fuel to run efficiently, and you may feel sluggish, tired, and unable to focus. Consuming sufficient amounts of healthy fats like avocado, olive oil, nuts, and fatty meats can also help to reduce inflammation in the body and support overall health. It’s important to note that consuming unhealthy fats like processed seed oils and trans fats should be avoided as they can lead to various health issues.

5. Too much stress

Too much stress can impede fat adaptation in several ways. One of the main ways is by triggering the release of cortisol, a hormone that can increase blood sugar levels and reduce insulin sensitivity. When cortisol levels are elevated, your body is more likely to rely on glucose for fuel instead of fat, making it harder to achieve fat adaptation. Additionally, stress can also lead to poor sleep, which can further disrupt hormone balance and make it harder to achieve fat adaptation. High-stress levels can likewise lead to overeating or making poor food choices, which can ultimately impact your ability to stay in a state of ketosis. Therefore, it is important to manage stress levels through practices such as exercise, meditation, and deep breathing to support the process of fat adaptation.

6. Lack of sleep

Lack of sleep can also interfere with your body’s ability to become fat-adapted. When you are sleep-deprived, your body produces more ghrelin, a hormone that stimulates hunger, and less leptin, a hormone that signals fullness. This can lead to overeating and make it harder to maintain a caloric deficit. Aim to get at least 7-8 hours of quality sleep per night to support fat adaptation.

7. Not staying hydrated

Dehydration can impede the ability for fat adaptation in a few ways. When you are dehydrated, your body has a harder time breaking down and using stored fat for energy. This is because water is necessary for the process of converting stored fat into usable energy. Additionally, dehydration can lead to a decrease in physical performance, which can make it harder to engage in the physical activity necessary to support fat adaptation. In order to support fat adaptation, it is important to drink enough water and stay hydrated. A good rule of thumb is to drink at least half your body weight in ounces of water per day, and more if you are physically active or in a hot environment.


In conclusion, becoming fat-adapted is an essential part of the ketogenic diet. However, it can be challenging for some people. By addressing common issues like being in a caloric deficit, consuming fewer carbs, and getting enough healthy fats, you can support your body’s ability to become fat-adapted. Additionally, addressing stress, sleep, and hydration can also support the fat adaptation process. With patience and persistence, you can become fat-adapted and enjoy the benefits of the ketogenic diet.