The ketogenic (keto) diet and low-carb diets are both popular eating plans that involve restricting your carbohydrate intake. While there are some similarities between the two, they are distinct from each other in several key ways.
The keto diet is a very low-carbohydrate diet, with less than 50 grams of carbohydrates per day, or 5% or fewer of calorie intake coming from carbs. It is also high in fat, with at least 70% to 80% of calories coming from fat. On the other hand, a low-carb diet typically includes between 10% to 30% of calories from carbs, with the remaining calories coming from protein and fat.
The keto diet was originally introduced by physicians in the 1920s as a treatment for epilepsy, but it has since become a popular weight-loss diet. The low-carb diet is often used for weight loss as well, and it has been linked to several health benefits in people with diabetes.
Both diets can lead to weight loss by reducing insulin levels and promoting fat-burning. However, the keto diet is more restrictive and may be challenging to follow long-term due to its high-fat requirement. It also carries certain risks, such as nutrient deficiencies, liver and kidney problems, constipation, and fuzzy thinking.
Overall, while both the keto and low-carb diets can be effective for weight loss, they are not the only options for losing weight or improving health. It is important to consult with a healthcare professional before starting any new diet to ensure it is safe and suitable for your individual needs and goals.
Characteristics | Values |
---|---|
Carbohydrate intake | Low-carb diets: 10-30% of calories from carbs; Keto diets: <5% of calories from carbs |
Protein intake | Low-carb diets: 40-50% of calories from protein; Keto diets: 15-30% of calories from protein |
Fat intake | Low-carb diets: 30-40% of calories from fat; Keto diets: 70-80% of calories from fat |
Weight loss | Both diets can help with weight loss, but studies show they don't work better than low-fat diets for losing weight long-term |
Overall health | The keto diet is proven effective in treating epilepsy and may benefit other neurological disorders; more research is needed |
Micronutrients | The keto diet may cause deficiencies in micronutrients such as selenium, magnesium, phosphorus, and vitamins B and C |
Fibre | Both diets cut fibre, which can have negative effects on digestion, heart health, and blood sugar control |
Sustainability | The keto diet is more restrictive and may be harder to follow long-term |
What You'll Learn
The keto diet is high in fat
The keto diet is a high-fat, low-carbohydrate diet. It is characterised by high-fat and low-carbohydrate intake, aiming to facilitate weight loss, enhance mental clarity, and boost energy levels. The primary goal of the keto diet is to decrease overall body fat and improve metabolic health.
The keto diet is typically made up of 55% to 60% fat, 30% to 35% protein, and 5% to 10% carbohydrates. This means that up to 80% of the total daily calories come from fat.
The keto diet is different from other low-carb diets because it centres on fat. Other low-carb diets, such as the Atkins or Paleo diets, focus on protein.
On the keto diet, followers must eat fat at every meal. This is because the diet has such high-fat requirements. In a 2,000-calorie daily diet, this could look like 165 grams of fat, 40 grams of carbohydrates, and 75 grams of protein. However, the exact ratio depends on your particular needs.
The keto diet is considered restrictive, and long-term compliance can be challenging. It is not a diet to be undertaken as an experiment, and you should consult a doctor and a registered dietitian before attempting it.
Best fats to eat on the keto diet:
- Avocados and avocado oil
- Nuts and nut butter
- Chia seeds and flaxseed
- Olives and cold-pressed olive oil
- Coconuts and unrefined coconut oil
- Full-fat Greek yoghurt
- Fatty fish
- Eggs
Worst fats to eat on the keto diet:
- Cheese
- Heavy cream or half-and-half
- Butter
- Whole milk
- Fatty meats, such as beef, lamb, and pork
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The keto diet is low in protein
The keto diet is often described as a low-carb, high-fat diet. However, it is important to note that the keto diet is not just low in carbohydrates but also moderate in protein. This is because protein can be converted into glucose if consumed in high amounts, which may slow down the transition into ketosis.
The standard ketogenic diet (SKD) typically consists of 70% fat, 20% protein, and only 10% carbs. While the high-fat requirement is well-known, it is important to understand that protein intake also needs to be monitored and kept moderate. This is one of the most challenging aspects of the keto diet due to conflicting information.
On the keto diet, it is crucial to consume adequate amounts of protein, ensuring you never consume less than you need. Protein is essential for healthy brain function, skin, bone, and muscle health, building muscle mass, and recovering after workouts. However, there is a misconception that overeating protein might kick someone out of ketosis. This is not the case, as only carbohydrates can seriously interfere with ketosis.
When it comes to protein intake on the keto diet, it is recommended to consume a minimum of 0.8 grams of protein per pound of lean body mass. For athletes or those looking to build muscle, the recommendation increases to 1-1.2 grams of protein per pound of body weight.
It is worth noting that a high-protein ketogenic diet is also an option, typically consisting of 60% fat, 35% protein, and 5% carbs. This variation of the keto diet has been studied extensively, showcasing its effectiveness.
In summary, while the keto diet is often associated with high-fat consumption, it is important to understand that protein intake also plays a crucial role. By consuming moderate amounts of protein, individuals can support various health functions while still maintaining the nutritional ketosis state required for the keto diet.
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The keto diet is very low in carbs
The ketogenic diet, or keto diet, is a very low-carb, high-fat diet. It restricts carbohydrates and replaces them with fat, which helps the body burn fat for energy. The keto diet typically contains 70% fat, 20% protein, and only 10% carbs. This is a drastic reduction in carbohydrates, with fewer than 20 to 50 grams of carbs consumed per day.
The keto diet is different from other low-carb diets in terms of its macronutrient breakdown. It requires a higher fat intake and a lower carb intake than traditional low-carb diets. While a low-carb diet may include 30% carbs, 40-50% protein, and 30-40% fat, the keto diet includes 80% fat, 15-20% protein, and less than 5% carbs.
The keto diet is designed to put the body into a state of ketosis, where it breaks down fat for energy and produces ketone bodies. This metabolic state is achieved when the body's glycogen stores are depleted, and it can take three to five weeks to transition into ketosis. During this time, individuals may experience the "keto flu," with symptoms such as dizziness, nausea, and fatigue due to the rapid loss of fluids and sodium.
The keto diet has been used to help reduce the frequency of epileptic seizures in children and has been explored as a potential treatment for other neurological disorders, heart disease, cancer, and Alzheimer's disease. It may also aid in weight loss and improve blood sugar control in people with type 2 diabetes.
However, the keto diet has some potential risks and downsides. It is high in saturated fat, which has been linked to heart disease. It may also lead to nutrient deficiencies, liver problems, kidney problems, and constipation. Additionally, the low-carb intake can result in fuzzy thinking and mood swings, as the brain functions best when it has sugar from healthy carbohydrates as its energy source.
The keto diet is a restrictive diet that may be challenging to follow long-term. It requires careful planning and preparation, especially when eating out or visiting family and friends. It is important to consult a doctor or dietitian before starting the keto diet to ensure it is suitable for your individual health status, lifestyle, and nutrition needs.
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The keto diet is restrictive
The keto diet is also restrictive in terms of protein intake, as eating too much protein can interfere with ketosis. The diet restricts protein intake to less than 1 gram per pound of body weight to prevent glucose production in the body.
In addition, the keto diet has a high-fat requirement, with fat supplying up to 90% of daily calories. This means that followers of the keto diet must consume fat at every meal. For example, in a 2,000-calorie daily diet, an individual would need to consume about 165 grams of fat.
The restrictive nature of the keto diet can make it challenging to adhere to, especially in the long term. It may also lead to potential health risks, such as an increased risk of heart disease due to the high levels of saturated fat and cholesterol associated with the diet.
Furthermore, the keto diet restricts many nutrient-rich food groups, including fruits, starchy vegetables, grains, and legumes. This can make it difficult to obtain essential vitamins, minerals, and fiber, potentially leading to nutritional deficiencies over time.
Overall, while the keto diet may offer potential benefits, such as weight loss and improved blood sugar control, its restrictive nature and potential health risks should be carefully considered before starting this diet. It is always recommended to consult with a healthcare professional before making any significant dietary changes.
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The keto diet is not a long-term solution
The keto diet is a very low-carb, high-fat diet. While it can lead to short-term weight loss for some people, it is not a long-term solution. Restrictive diets like keto can be difficult to stick to, and many people regain any lost weight once they come off it.
Firstly, the keto diet is challenging to follow long-term due to the reduced variety of foods and flavours. Secondly, it may not be good for your health in the long run. A large review of studies found that the keto diet only has short-term, and not long-term, benefits. One concern is that the diet may lead to a high intake of saturated fat, which can increase levels of unhealthy cholesterol (LDL) and the risk of heart disease.
The keto diet also restricts some of the best sources of fibre, including starchy vegetables, legumes, fruits, and whole grains. Fibre is crucial for the health of your gut microbiome, and including it in your diet is linked to a lower risk of heart disease and diabetes, as well as lower body weight.
Another potential problem is that going on a restrictive diet like keto can lower your metabolic rate, making it more difficult to lose weight or keep it off in the long term.
In conclusion, while the keto diet may lead to short-term weight loss, it is not a long-term solution due to its restrictiveness and potential negative health impacts.
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Frequently asked questions
A low-carb diet is a way of eating that restricts dietary carbohydrates, mainly from grains, sugar-sweetened beverages, and bread. There is no standard definition, but it is generally considered to be a diet in which less than 45% of calories come from carbohydrates.
The keto diet, or ketogenic diet, is a very low-carb, high-fat diet. It typically includes less than 50 grams of carbohydrates per day, with at least 70% of calories coming from fat.
Both diets aim to reduce carbohydrate intake and shift the body's metabolism towards burning fat for energy. The keto diet is more restrictive and aims to achieve a state of ketosis, where the body breaks down fat into ketone bodies to use as fuel.
Both diets are low in carbohydrates, but the keto diet is more restrictive, allowing less than 50 grams of carbohydrates per day. The keto diet is also higher in fat, with at least 70% of calories coming from fat, compared to around 50-60% on a low-carb diet.
Both diets can help with weight loss in the short term, but studies have shown that at one to two years of follow-up, weight loss outcomes are similar for low-carb and low-fat dieters. The keto diet has been shown to be effective in children with epilepsy, and may provide benefits for a number of neurological disorders and type 2 diabetes. The long-term effects of the keto diet are unknown, and it may be difficult to follow due to its restrictiveness. A low-carb diet may be easier to sustain in the long term and can also lead to weight loss and improved health outcomes.