The ketogenic diet is a very low-carb, high-fat diet that is popular for its weight loss effects. It encourages ketosis, a metabolic state in which the body burns fat as its primary source of energy instead of carbohydrates. As the diet is very strict, it is natural to wonder if having a cheat meal or a cheat day will kick you out of ketosis.
A cheat meal refers to having a single meal that breaks the diet rules, while a cheat day allows you to break the diet rules throughout the day. The idea of planned cheating is that by allowing yourself short periods of indulgence, you are more likely to stick to the diet over the long term.
However, cheat meals or days are discouraged on the keto diet because they can easily break ketosis. Eating more than 50 grams of carbs can kick your body out of ketosis. As carbs are the body's preferred energy source, the body will use them over ketone bodies, which are derived from fats.
Additionally, research suggests that suddenly reintroducing a high-carb meal to a ketogenic diet may damage your blood vessels. It is also easy to overeat while cheating, which may sabotage your weight loss efforts and promote unhealthy eating habits.
If you do decide to cheat on the keto diet, it is important to get back into ketosis by strictly following the diet. This process can take several days to a week, depending on your carb intake, metabolism, and activity levels.
Characteristics | Values |
---|---|
Effect on Ketosis | A cheat meal can take you out of ketosis. |
Effect on Fat Adaptation | Cheat meals can prevent your body from becoming fat-adapted. |
Effect on Blood Sugar | Cheat meals can cause blood sugar spikes. |
Effect on Cravings | Cheat meals can cause cravings for carbs and sugar. |
Effect on Overall Health | Cheat meals can cause keto flu symptoms like fatigue, headaches, low energy, and bloating. |
What You'll Learn
Cheat meals can take you out of ketosis
The keto diet is a very low-carb, high-fat diet that encourages ketosis, a metabolic state in which your body burns fat as its primary source of energy instead of carbs. As the keto diet is very strict, you may be tempted by the occasional high-carb food. This is what is known as a cheat meal. A cheat meal is when you have a single meal that breaks the rules of your diet, and a cheat day is when you break the rules of your diet throughout the day.
The idea of planned cheating is that by allowing yourself short periods of indulgence, you are more likely to stick to the diet over the long term. While cheating may be helpful for some eating patterns, it is not ideal for the keto diet. This is because the keto diet relies on your body staying in ketosis, and a cheat meal can easily exceed your daily carb allowance and take your body out of ketosis.
As carbs are your body's preferred energy source, your body will use them over ketone bodies—the main source of fuel during ketosis, which are derived from fats—as soon as a sufficient number of carbs are available. In addition, some research suggests that suddenly reintroducing a high-carb meal to a ketogenic diet may damage your blood vessels.
If you do have a cheat meal and find yourself out of ketosis, you will need to strictly follow the keto diet to re-enter ketosis. This process takes several days to one week, depending on your carb intake, metabolism, and activity levels. To help you get back into ketosis, you can try intermittent fasting, fat fasting, and exercise.
To avoid cheating on the keto diet, you can keep tempting foods out of the house, rope in an accountability partner, practice mindfulness, and make a strong daily diet plan.
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A single cheat meal can exceed your daily carb allowance
A single cheat meal can easily exceed your daily carb allowance and take your body out of ketosis. The keto diet is a very low-carb, high-fat diet that encourages ketosis, a metabolic state in which your body burns fat as its primary source of energy instead of carbs. To stay in ketosis, you need to eat fewer than 50 grams of carbs per day. Eating more than 50 grams can kick your body out of ketosis.
As carbs are your body's preferred energy source, your body will use them over ketone bodies—the main source of fuel during ketosis, which are derived from fats—as soon as a sufficient number of carbs are available. A single cheat meal can easily exceed the daily carb allowance and take your body out of ketosis. This is because 50 grams of carbs is a relatively small amount, and a single cheat meal can quickly add up to more than this.
In addition, research suggests that suddenly reintroducing a high-carb meal to a ketogenic diet may damage your blood vessels. It's also worth noting that it's easy to overeat during a cheat meal, which may sabotage your weight loss efforts and promote unhealthy eating habits. Therefore, cheat meals or days are discouraged on the keto diet because they can easily break ketosis, the metabolic state that is the hallmark of this diet.
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Cheat meals can cause a spike in blood sugar
The keto diet is a very low-carb, high-fat diet that encourages ketosis, a metabolic state in which your body burns fat as its primary source of energy instead of carbs. As the keto diet is very strict, you may be tempted by the occasional high-carb food. This is known as a "cheat meal" or "cheat day". While these are common strategies for strict diets, they are not ideal for the keto diet because it relies on your body staying in ketosis.
To stay in ketosis, you need to eat fewer than 50 grams of carbs per day. Eating more than this can kick your body out of ketosis. As carbs are your body's preferred energy source, your body will use them over ketone bodies (which are derived from fats) as soon as a sufficient number of carbs are available.
Keto is popular for those with type 2 diabetes, cardiovascular disease, or poor cardiovascular health because it can stabilize blood glucose levels. If you're following the keto diet for these health reasons, it's important to know that eating cheat meals can cause blood sugar levels to spike.
In addition, since your glucose tolerance has depleted on keto, you will likely experience a nasty sugar hit. If you eat dessert or high-carb food and don’t feel well the next day, it’s probably best to avoid it.
If you do decide to have a cheat meal, it’s a good idea to test your ketone levels to know if you’ve been kicked out of ketosis.
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Cheat meals can cause cravings
The keto diet is a very low-carb, high-fat diet that encourages ketosis, a metabolic state in which your body burns fat as its primary source of energy instead of carbohydrates. As the keto diet is very strict, you may be tempted by the occasional high-carb food. This is known as a "cheat meal" or a "cheat day". While cheat meals can be helpful for some eating patterns, they are not ideal for the keto diet as they can easily break ketosis, the metabolic state that is the hallmark of this diet.
If you do find yourself craving sweets and carbs after a cheat meal, opt for keto-friendly alternatives like at-home keto pizza or already-made keto cookies. There are also plenty of keto-friendly snacks available on grocery store shelves, such as Perfect Keto Chocolate Chip Cookies and Bars.
It is important to note that cheat meals can have physical side effects, such as kicking you out of ketosis, affecting your fat adaptation, and spiking your blood sugar. Additionally, cheating on your keto diet can lead to cravings, which may make it more difficult to stick to your diet and achieve your health and weight loss goals.
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You may experience keto flu symptoms again
If you go back to a ketogenic diet after being off it for a day or a period of time, you can get back into the diet the next day, but it will take a couple of days to get your body back into the state of ketosis. You may experience "keto flu" symptoms again, depending on your metabolism and what kind of keto break you took. These symptoms include headaches, nausea, fatigue, stomach pain, body aches, brain fog, and mood swings. They should go away quickly as long as you don't bump yourself out of ketosis again.
If you are feeling prolonged symptoms of dizziness, stomach upset, or decreased energy, stop your keto diet and consult your doctor.
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Frequently asked questions
Yes, a cheat meal can take you out of ketosis. Ketosis is a metabolic state in which your body uses fat for fuel instead of carbs. Eating a high-carb meal can kick your body out of this state.
It generally takes one to three days to get back into ketosis after a cheat meal, but this can vary depending on the individual and the level of carb restriction you choose to do.
Cheat meals can cause cravings, a spike in blood sugar, and keto flu symptoms such as fatigue, headaches, low energy, and bloating.
Here are some tips to avoid cheating on keto:
- Practice mindfulness and pay attention to your body to resist cravings and emotional eating.
- Plan out your meals and snacks to make sure you don't get hungry during the day.
- Make your everyday diet enjoyable by incorporating different keto-friendly meals.
- Keep tempting foods out of the house.
- Have an accountability partner to help you stay motivated.
Instead of cheating on keto, you can try low-carb substitutes for your favorite foods, such as keto pizza, bread, or desserts. You can also practice "cheating without cheating" by delaying your cravings, cheating with less sugar, or cheating with added protein and fat.