Milly Gaines
The ketogenic diet, or keto for short, is a high-fat, moderate-protein, low-carbohydrate diet that has gained popularity as a weight-loss method. It first surfaced in the 1920s as a treatment for epilepsy and diabetes. Today, it is also used to improve metabolic health, manage blood sugar levels, and reduce seizures. Before starting the keto diet, it is important to consult a doctor or nutritionist, understand the basics of the diet, and be aware of potential side effects such as digestive problems, high cholesterol, and kidney stones. To start keto, one should reduce carbohydrates, increase healthy fats, and consume adequate protein.
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What You'll Learn
The types of keto diet
The Ketogenic Diet, or keto, is a high-fat, moderate-protein, and low-carbohydrate diet that has been used since the 1920s. It was originally used to help with conditions like epilepsy, diabetes, and seizures. Today, it is a popular weight-loss method.
There are several types of keto diets, each focusing on slight changes in the proportion of fat, protein, and carbohydrates in your daily meals. Here are some of the most common types:
- Standard Ketogenic Diet (SKD): This is a very low-carb, moderate-protein, and high-fat diet. It typically consists of 70% fat, 20% protein, and only 10% carbs.
- Cyclical Ketogenic Diet (CKD): This version involves periods of higher-carb "refeeds". For example, you might have 5 ketogenic days followed by 2 high-carb days.
- Targeted Ketogenic Diet (TKD): This type of keto diet allows you to add carbs around intense workout sessions.
- High-Protein Ketogenic Diet (HPKD): This is similar to SKD but with more protein. The ratio is usually 60% fat, 35% protein, and 5% carbs.
- Classic Ketogenic Diet (KD): This is the most restrictive type of keto diet, following a "ketogenic ratio" of 4:1 (4 grams of fat for every 1 gram of protein and carbohydrate). It typically consists of 80-90% fat, 6-8% protein, and 2-4% carbohydrates.
- Medium-Chain Triglyceride (MCT) Diet: This diet follows a ketogenic ratio of 1.9:1 (1.9 grams of fat for every 1 gram of protein and carbohydrate). It includes more protein and carbohydrates compared to the classic KD.
- Modified Ketogenic Diet: This is a slightly less restrictive version of the classic KD, with a ratio range of 3:1 (3 grams of fat for every 1 gram of protein and carbohydrate) down to a 1:1 ratio.
- Mediterranean Keto: This combines the standard keto macronutrient amounts with Mediterranean diet elements like fatty fish and olive oil.
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The foods you can eat
The ketogenic diet, or keto, is a low-carb, high-fat, and moderate-protein eating plan. The goal is to swap out glucose calories with fat, forcing your body to burn fat for energy instead of sugar.
When starting a ketogenic diet, it is important to understand which foods are keto-friendly and which are not. Here are the foods that you can eat:
- Healthy fats, such as olive oil, coconut oil, palm oil, egg yolk, avocado, cocoa butter, and some nuts.
- Vegetables that are high in nutrients and low in carbohydrates, like broccoli, spinach, asparagus, green beans, and green bell peppers.
- Protein sources such as meat, fish, seafood, eggs, or tofu.
- Full-fat dairy products.
- Coffee or tea without sweeteners. A splash of milk or cream in your coffee or tea is okay, but beware of the carbs adding up if you drink multiple cups a day.
- The occasional glass of wine is fine, but steer clear of sweet alcoholic drinks.
It is important to note that the keto diet is not just about the foods you can eat, but also about the overall nutritional balance. The standard ketogenic diet (SKD) typically contains 70% fat, 20% protein, and only 10% carbs.
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The foods you can't eat
The ketogenic diet, or keto, is a low-carb, high-fat, moderate-protein diet. It has been used to treat epilepsy and diabetes, and is now a popular way to lose weight.
When starting a ketogenic diet, it is important to remember that it is a dramatic shift in eating habits. The key to the diet is to cut out carbohydrates, especially sugars and starches, and replace them with fats. This means that foods like bread, pasta, and potatoes, which make up a large part of many people's diets, are off the menu.
It is also important to limit highly processed foods and to focus on nutrient-dense and fibre-rich foods. This includes vegetables that are high in nutrients and low in carbohydrates, like broccoli, spinach, asparagus, green beans, and peppers.
The keto diet also cuts out legumes, whole grains, and most fruits. It is important to be aware of hidden carbohydrates, especially when it comes to vegetables that may be considered fine on other diets. For example, while a splash of milk or cream in tea or coffee is allowed, drinking multiple cups a day can add up in terms of carbs. Similarly, while wine is fine, sweet alcoholic drinks should be avoided.
It is also important to be aware of the types of fat that are being consumed. The keto diet can be high in saturated fats, which can lead to high cholesterol and heart disease. Instead, focus on healthy fats like olive oil, coconut oil, egg yolk, avocado, and nuts.
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The potential risks
The ketogenic diet, or keto for short, is a high-fat, moderate-protein, low-carbohydrate diet that has been used to help with weight loss and certain health conditions, including epilepsy, seizures, and type 2 diabetes. While keto can be beneficial, there are potential risks to consider when starting this diet.
Firstly, keto can cause digestive problems, high cholesterol, kidney stones, low energy, and slower growth rates in children. It is important to note that the keto diet restricts nutrient-dense and fiber-rich foods like legumes, whole grains, starchy vegetables, and fruits, which can impact gut health. To mitigate this, some people take mineral supplements and add extra salt to their meals. Additionally, the keto diet can lead to what is known as the ""keto flu," which includes symptoms like muscle cramps, headaches, and fatigue. Starting the diet slowly, staying hydrated, and getting plenty of rest can help reduce the chances of experiencing these symptoms.
Secondly, the keto diet may not be suitable for everyone. It is essential to consult a doctor or nutritionist before starting, especially for those with certain health conditions or those taking specific medications, such as for high blood pressure or diabetes. The keto diet may require adjustments to medication dosages, and it can be challenging to maintain for those with active lifestyles, such as elite athletes.
Thirdly, there is a risk of missteps when starting the keto diet due to its complexity. There are several types of keto diets, and it is crucial to understand which foods are keto-friendly and how to read nutritional labels. Without proper guidance, one may end up consuming too many unhealthy saturated fats, increasing the risk of high cholesterol and heart disease.
Lastly, while the keto diet can lead to rapid weight loss, especially in the first week, much of this initial weight loss is water weight. It is important to be mindful of this and ensure proper hydration and electrolyte balance. Additionally, the keto diet may not be sustainable or compatible with everyone's lifestyle and food preferences.
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The side effects
The ketogenic diet, or keto, is a low-carb, high-fat, moderate-protein diet that has been used to treat epilepsy and diabetes, as well as aid weight loss. It is not an easy diet, and it can be overwhelming as it usually involves a dramatic shift in eating habits.
When starting keto, you may experience what is known as the "keto flu", which can include side effects such as muscle cramps, headaches, fatigue, digestive problems, and low energy. These side effects are often due to shifts in water and mineral balance, and electrolyte concentrations in the body. To minimise these side effects, it is recommended to start the diet slowly, stay hydrated, and ensure adequate mineral and electrolyte intake.
Additionally, the keto diet may lead to high cholesterol, kidney stones, and slower growth rates in children. It can also affect gut health, as it typically involves cutting out nutrient-dense and fiber-rich foods. There are also potential risks associated with medications, especially for diabetes, where doses may need to be adapted.
It is important to consult a doctor or nutritionist before starting the keto diet to ensure it is right for you and to minimise potential side effects.
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Frequently asked questions
The ketogenic diet, or keto for short, is a low-carb, high-fat, moderate-protein diet. The goal is to swap out glucose calories with fat, forcing your body to burn fat for energy instead of sugar.
The keto diet is known to aid weight loss and improve metabolic health. It can also help manage type 2 diabetes, lower blood sugar levels, and control appetite. The diet has also been used to treat epilepsy and improve cognitive function in patients with Alzheimer's.
Starting the keto diet may lead to side effects such as digestive problems, high cholesterol, kidney stones, low energy, slower growth rates in children, and the ""keto flu", which includes symptoms like muscle cramps, headaches, and fatigue. To minimise these side effects, it is recommended to start the diet slowly, stay hydrated, and ensure adequate electrolyte intake.
