The ketogenic or keto diet is a very low-carb, high-fat diet. The keto diet encourages a metabolic state called ketosis, in which the body burns fat instead of carbohydrates as its primary source of energy. The process of burning fat results in the production of fatty acid byproducts called ketones, which the body uses for energy when carbohydrates are in short supply. Ketone supplements claim to solve one of the biggest challenges of the keto diet: getting to and maintaining ketosis. But do they work?
Characteristics | Values |
---|---|
Diet Type | Very low-carb, high-fat, moderate protein |
Ketosis | A metabolic state where the body burns fat instead of carbohydrates as its primary source of energy |
Ketones | Small molecules that can be used as fuel when blood sugar is in short supply |
Ketone Types | Ketone salts and ketone esters |
Ketone Salts | Created by adding beta-hydroxybutyrate to an electrolyte mineral |
Ketone Esters | Synthetic, more potent and more expensive |
Benefits | Weight loss, improved athletic performance, appetite suppression, improved mental performance |
Side Effects | Extreme stomach upset, increased risk of electrolyte imbalances, dehydration |
What You'll Learn
Ketone supplements may decrease appetite
Ketone supplements have been shown to decrease appetite, which may help with weight loss. In a study of 15 people of normal weight, those who consumed a beverage containing ketone esters after an overnight fast experienced 50% less hunger than those who drank a sugary beverage. This effect was attributed to lower levels of the hunger hormone ghrelin between two and four hours after drinking the ketone ester drink.
However, ketone supplements may not affect appetite as much in people who have eaten a meal beforehand. Studies have shown that participants who did not eat a meal before taking a ketone supplement had higher blood ketone levels than those who did. Since elevated ketones are associated with reduced appetite and lower ghrelin levels, ketone supplements may only be beneficial during a fast, such as in the morning, rather than after a meal containing carbohydrates.
In addition, one small study found that exogenous ketone supplements reduced appetite for over four hours, which could be promising for weight loss. However, more studies are needed before ketone supplements can be recommended for appetite control. Furthermore, while ketone supplements may decrease appetite, their potential weight loss benefits are still unknown, and some evidence suggests that they may even hinder weight loss.
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Ketosis is a metabolic state where the body burns fat for energy
Ketosis is a metabolic state in which the body burns fat for energy instead of carbohydrates. This process is encouraged by the ketogenic diet, which is a very low-carb, high-fat diet. The body is forced to break down fat for fuel instead of using glucose, which comes from carbohydrates.
When the body is in ketosis, it produces ketones, which are small molecules that can be used as fuel when blood sugar is in short supply. Ketones are produced naturally inside the body by the liver when carbohydrates and sugar are restricted. However, ketones can also be administered to people, usually in the form of a drink, which is known as exogenous ketosis.
Exogenous ketosis supplements are claimed to boost the effects of a keto diet and even provide some of the benefits of keto without restricting carbohydrates. These supplements typically contain two active ingredients: ketone beta-hydroxybutyrate (BHB) and medium-chain triglycerides (MCTs). BHB is a compound that the liver produces from fats, and MCTs are a type of fat found in coconut and palm oil.
While exogenous ketosis supplements are claimed to have various benefits, there is limited research on their effectiveness. Some studies suggest that they can increase ketone levels in the body and help with weight loss, athletic performance, and psychiatric disorders. However, other studies suggest that they may not have a significant impact on weight loss or athletic performance.
It is important to note that the Food and Drug Administration (FDA) does not regulate the exogenous ketone supplement market, and there may be potential side effects associated with taking these supplements. As such, it is recommended to consult a medical professional before taking any supplements.
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Ketone esters are the most potent type of exogenous ketone
The keto diet is a very low-carb, high-fat diet that puts your body into ketosis, a state in which it burns fat for fuel instead of carbohydrates. Ketone supplements are often used to mimic ketosis and raise blood ketone levels without dietary changes. These supplements contain either ketone salts or ketone esters, the latter being the most potent type of exogenous ketone.
Ketone esters are synthetic compounds formed by adding either beta-hydroxybutyrate or acetoacetate to the backbone molecule held together by an ester bond. They are more potent and more expensive than ketone salts. Ketone esters elevate ketones to higher levels and for longer periods, making them the most effective way to increase ketone levels in the body.
The benefits of ketone esters include their potential for anti-seizure and therapeutic purposes, especially for those on the keto diet to manage epilepsy. They do not carry the same concerns with excess electrolyte minerals as ketone salts, as they are not bound to sodium or magnesium.
Research has shown that ketone esters can reduce hunger and lower the levels of the hunger hormone, ghrelin. This can lead to reduced food consumption and aid in weight loss. Additionally, ketone esters can improve physical performance by increasing fat utilisation during exercise and preserving glycogen reserves. They also lower blood lactic acid, which accumulates during exercise when carbohydrates are broken down at a high rate without sufficient oxygen.
Furthermore, ketone esters have been found to improve muscle recovery by increasing the rate of energy store replenishment and reducing muscle breakdown. They also support cognitive function, especially after exercise, as ketones are an ideal fuel source for the brain.
In summary, ketone esters are the most potent form of exogenous ketones, offering a range of benefits such as elevated ketone levels, improved physical and cognitive performance, reduced hunger, and potential therapeutic applications.
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Ketone supplements may improve athletic performance
The ketogenic diet is a very low-carb, high-fat diet that encourages a metabolic state called ketosis, in which the body burns fat instead of carbohydrates as its primary source of energy. Ketone supplements are claimed to solve one of the biggest challenges of the keto diet: getting to and maintaining ketosis.
However, it is important to note that the effects of ketone supplements on athletic performance are still under investigation, and the current research is limited. While some studies suggest a negligible improvement or no effect, others have found a reduction in performance.
Additionally, it is worth mentioning that the Food and Drug Administration (FDA) does not regulate the exogenous ketone supplement market, and there may be potential side effects and risks associated with their use.
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Ketone supplements are not regulated by the FDA
The Food and Drug Administration (FDA) does not regulate the exogenous ketone supplement market. This means that the FDA does not test or evaluate ketone supplements for safety, purity, or effectiveness before they are sold to consumers. The responsibility falls on supplement manufacturers to ensure their products are safe and accurately labelled.
The lack of FDA regulation means that consumers need to be cautious when considering ketone supplements. It is recommended that individuals consult a medical professional or dietitian before taking any ketone supplements. A doctor can evaluate an individual's overall health, including electrolyte levels, existing conditions, and medications, to determine whether taking ketone supplements is safe for them.
The potential side effects of ketone supplements include stomach issues, such as nausea and diarrhea, as well as electrolyte imbalances, hypoglycemia, hypertension, and dehydration. These side effects can be dangerous for individuals with certain medical conditions, such as kidney disease or high blood pressure.
While ketone supplements are readily available for purchase, it is important to remember that they are not regulated by the FDA. Consumers should carefully read labels, be aware of potential side effects, and consult a healthcare professional to make an informed decision about whether to include ketone supplements in their diet.
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Frequently asked questions
The keto diet is a very low-carb, high-fat diet that encourages a metabolic state called ketosis, in which the body burns fat instead of carbohydrates as its primary source of energy.
The keto diet restricts carbohydrates and replaces them with fat, which the body then uses as its primary source of energy instead of glucose.
Ketosis is a metabolic state in which the body burns fat for energy instead of carbohydrates. This process of burning fat results in the production of fatty acid byproducts called ketones, which are used for energy when carbohydrates are in short supply.
The keto diet is popular due to its impressive weight loss benefits. It can also be used to help reduce the number and severity of seizures in people with epilepsy and may help minimize the symptoms of psychiatric disorders.
Exogenous ketones are supplements that contain either ketone salts or ketone esters. They are claimed to help people achieve ketosis faster and stay in it longer, but there is limited research to support these claims.