
The ketogenic diet is a low-carb, high-fat diet that can reduce appetite and hunger cravings. While it can be restrictive, some people find that having a cheat day helps them stick to the diet long-term. A cheat day is when someone takes a break from the diet and eats foods that are normally restricted. However, cheat days can have negative consequences, such as knocking the body out of ketosis, hindering weight loss, and causing digestive issues. Ultimately, it is up to the individual to decide whether to include cheat days in their diet plan, weighing the potential benefits against the drawbacks.
| Characteristics | Values |
|---|---|
| What is a keto cheat day? | A temporary pause on following a ketogenic diet. |
| Why have a keto cheat day? | To maintain keto long-term and keep the diet from feeling too restrictive. |
| How often should you have a keto cheat day? | Occasional cheats may be manageable, but frequent breaks can disrupt fat adaptation and slow progress. Ideally, try to return to keto within a day to minimize setbacks. |
| What are the drawbacks of a keto cheat day? | Knocking you out of ketosis, hindering weight loss, sluggishness, bloating, constipation, brain fog, and increased cravings. |
| How to avoid the drawbacks of a keto cheat day? | Limit the number of carbs you eat on your cheat day, incorporate keto-friendly snacks, and plan satiating keto-friendly meals at home. |
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What You'll Learn

The pros and cons of a cheat day
Cheat days are common for people on strict diets. On the ketogenic diet, a cheat day is when you take a break from the diet's rules and indulge in foods that are typically restricted. While some people argue that cheat days are helpful for long-term adherence to the keto diet, others believe that they do more harm than good.
Pros of a Cheat Day
- A cheat day can serve as a tasty reward for your hard work and dedication to the keto diet.
- Cheat days can be a welcome break from the restrictive nature of the keto diet, making it feel more manageable and sustainable in the long run.
- Cheat days can boost your mindset and determination to continue with the keto diet.
- Occasional cheats may be manageable, and some people can smoothly return to the keto diet after a break.
Cons of a Cheat Day
- Cheat days can kick you out of ketosis, the metabolic state where your body burns fat for fuel, which takes several days to a week to regain.
- Consuming high-carb, high-sugar foods on cheat days can lead to spikes in blood sugar and insulin levels, resulting in increased hunger, cravings, and potential weight gain.
- Cheat days may lead to digestive issues such as bloating, gas, diarrhoea, or constipation due to the sudden intake of high-carb foods.
- Cheat days can strengthen cravings for carbohydrates and sugar, making it harder to avoid these foods in the future and potentially leading to unhealthy eating habits.
- Cheat days can disrupt your progress and stall your weight loss efforts.
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How to cheat on keto
The ketogenic diet is a low-carb, high-fat diet that can reduce appetite and hunger cravings. However, it can be restrictive, and it's natural to crave forbidden, carby foods. A keto cheat day is when you pause the diet and eat high-carb, sugary foods. While cheat days can be rewarding, they can also have negative consequences. Here's how to cheat on keto while minimising the downsides:
Plan cheat days around special events: If you're attending a birthday party or wedding, you might want to plan a cheat day so you can indulge in the cake and not feel restricted. Scheduling cheat days in advance can also help you stick to your diet on regular days.
Follow a cyclical keto diet (CKD): This involves sticking to strict keto for 5 days and allowing for higher carb intake for the rest of the week. While this will likely kick you out of ketosis, it can make the keto diet more mentally manageable.
Incorporate intermittent fasting: Combining intermittent fasting with keto may help your body shift its fuel source from carbs to fat. This can be a strategy to get back into ketosis after a cheat day.
Track your carb intake: When cheating on keto, be mindful of your carb intake. Eating more than 50 grams of carbs in a day can kick your body out of ketosis. Try to limit your carb intake on cheat days to stay within this limit and minimise setbacks.
Be mindful of cravings: Cheat days can strengthen your cravings for carbs and sugar, making it harder to avoid them in the future. If you find yourself craving sweets and carbs after a cheat day, seek out keto-friendly snacks and meals to satisfy your cravings without compromising ketosis.
Remember, the decision to cheat on keto is yours alone. Consider the potential side effects and whether there may be healthier alternatives. If you do choose to cheat, try to return to keto within a day to minimise setbacks.
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Strategies to curb the urge to cheat
Cheat days and meals are common strategies for strict diets. While they may be helpful for some eating patterns, they are not ideal for the keto diet. This is because the keto diet relies on your body staying in ketosis, a metabolic state where the body burns fat for fuel instead of carbohydrates. To achieve ketosis, you need to eat fewer than 50 grams of carbohydrates per day. Eating more than 50 grams can kick your body out of ketosis.
- Keep tempting foods out of the house: Removing treats and other tempting, high-carb foods from your immediate surroundings can make cheating inconvenient.
- Plan your meals and snacks: Having a solid dietary plan makes it less likely that you’ll get hungry during the day.
- Make your everyday diet enjoyable: Try incorporating different keto-friendly meals to vary up your diet and make it enjoyable.
- Practice mindfulness: Mindfulness involves paying attention to your body, which may help you resist cravings and emotional eating.
- Get an accountability partner: A buddy or accountability partner can help you stay motivated to stick to your diet.
- Exercise often: Adequate physical activity depletes your glycogen stores, which are your body’s stored form of carbs. In turn, this promotes ketosis.
- Intermittent fasting: Combining intermittent fasting with the keto diet may help your body shift to using fat for fuel instead of carbs.
- Consider a medium-chain triglyceride (MCT) supplement: MCTs are rapidly absorbed fatty acids that are easily converted into ketones.
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The impact of cheating on ketosis
The ketogenic diet is a low-carb, high-fat diet that aims to achieve a metabolic state called ketosis, where the body burns fat for fuel instead of carbohydrates. To achieve and maintain ketosis, adherents of the keto diet aim to eat fewer than 50 grams of carbohydrates per day.
A cheat day on the keto diet is a planned break from the strict rules of the diet, where individuals allow themselves to consume more carbohydrates and indulge in foods they typically restrict. While cheat days can be a welcome break from the restrictive nature of the keto diet, they can also have negative consequences, particularly in relation to ketosis.
The primary impact of cheating on ketosis is that it can temporarily kick individuals out of the metabolic state of ketosis. A single cheat meal can easily exceed the daily carb allowance, and a cheat day is almost certain to surpass 50 grams of carbohydrates. This is because carbohydrates are the body's preferred energy source, and when they are present, the body will use them for fuel instead of burning fat. As a result, cheating on the keto diet can lead to a halt in weight loss and even cause short-term weight gain.
In addition to disrupting ketosis, cheat days can also increase cravings for carbohydrates and sugar. The keto diet is designed to reduce appetite and hunger cravings, but veering away from the diet can bring back these cravings. This is because carbohydrates and sugar can induce reward and craving pathways in the brain, similar to addictive drugs. As a result, cheating on the keto diet can make it harder to avoid sugary and carb-rich foods in the future and may lead to a return to old eating habits.
Furthermore, cheat days can also cause digestive issues such as bloating, gas, diarrhoea, and constipation. This is because the body produces fewer enzymes to break down carbohydrates when following a low-carb diet, and a sudden intake of high-carb foods can be difficult for the body to handle.
While cheat days can have negative impacts on ketosis and overall progress, some individuals find that they are a necessary break from the restrictions of the keto diet. For some, cheat days provide flexibility and make the diet more mentally manageable, increasing the likelihood of long-term adherence. However, the impact of cheat days varies depending on the individual, and some may find it difficult to return to the keto diet after a cheat day.
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How to get back into ketosis after cheating
Cheat days are common in diets, and the ketogenic diet is no exception. However, it's important to note that cheat days on keto can have consequences. A single cheat meal can easily exceed the daily carb allowance and take your body out of ketosis, and a cheat day is almost certain to do so. This can lead to several setbacks, such as increased cravings, sluggishness, weight gain, and a return to old eating habits.
So, how do you get back into ketosis after a cheat day? Here are some strategies to help you get back on track:
- Strictly follow the keto diet: To re-enter ketosis, you need to cut your carb intake back to below 20-50 grams of net carbs per day. Focus on high-fat, protein-rich, low-carb foods.
- Intermittent fasting: Combining intermittent fasting with the keto diet may help your body shift its fuel source from carbs to fat. Intermittent fasting involves alternating between periods of eating and fasting, which helps stabilize blood sugar levels and depletes glycogen stores.
- Exercise: Incorporate fat-burning exercises, such as High-Intensity Interval Training (HIIT), to help deplete glycogen stores accumulated during your cheat day. Exercise promotes ketosis and supports your weight loss goals.
- Stay hydrated: As you transition back into ketosis, you may experience fluid loss and electrolyte imbalances. Staying hydrated is critical to maintaining the body's fluid balance, nerve function, and energy levels. Consider using a high-quality electrolyte powder to prevent keto flu symptoms.
- Try a fat fast: Short-term fat fasts, like egg fasts, are very high-fat and low-carb diets meant to last a brief period. They may help expedite ketosis.
- Track your carb intake: Take note of your daily carb intake to ensure you don't underestimate it. This is especially important if you're new to keto, as it can take several weeks for your body to fully adapt to burning fat.
- Resist the urge to cheat: To avoid future cheat days, practice mindfulness, keep tempting foods out of the house, and plan your meals and snacks. Having an accountability partner can also help you stay motivated.
Remember, the time it takes to get back into ketosis after a cheat day depends on your metabolic flexibility, age, activity level, and the number of carbs consumed during the cheat meal. Don't be too hard on yourself, and focus on getting back on track!
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Frequently asked questions
A keto cheat day is when you take a break from the ketogenic diet and consume more carbs and sugar than you usually would.
A cheat day can knock you out of ketosis, which is the metabolic state where your body burns fat for fuel. This can lead to weight gain, an increase in body fat, sluggishness, and more cravings. It can also cause digestive issues such as bloating, gas, diarrhoea, or constipation.
A cheat day can be a reward for your hard work and a way to maintain the keto diet long-term. It can provide a mental break from the strict rules of the diet and make it more sustainable.
There is no ideal frequency for cheat days, and it ultimately depends on the individual. Some people may be able to have cheat days once a week and easily return to the keto diet, while others may struggle to get back on track. It is recommended to aim for 4-6 weeks of consistent keto dieting before considering a cheat day. If you decide to have a cheat day, try to limit your carb intake to stay in ketosis.
Here are some strategies to help resist the urge to cheat:
- Practice mindfulness by paying attention to your body and cravings.
- Plan your meals and snacks to avoid getting hungry during the day.
- Make your everyday diet enjoyable by incorporating a variety of keto-friendly meals.
- Keep tempting, high-carb foods out of the house to avoid giving in to cravings.
- Find an accountability partner to help you stay motivated and on track.











































