Q. What is the keto diet?
Doctor Answer is medically reviewed by SecondMedic medical review team.
The keto (ketogenic) diet is a high-fat, low-carbohydrate eating plan that aims to shift your body's metabolism into a state of ketosis. In ketosis, your body primarily relies on fat for fuel instead of carbohydrates. This shift is believed to have various health and weight loss benefits.
The typical macronutrient breakdown of a keto diet is as follows:
High Fat: Approximately 70-80% of your daily calories come from healthy fats, such as avocados, nuts, seeds, olive oil, and fatty fish.
Moderate Protein: About 20-25% of your daily calories are from protein sources like meat, poultry, fish, eggs, and dairy products.
Low Carbohydrates: Carbohydrate intake is severely restricted, making up only about 5-10% of your daily calories. This means limiting or avoiding foods like grains, starchy vegetables, fruits, and sugary foods.
The reduction in carbohydrate intake forces your body to use ketones, which are produced from fats in the liver, as an alternative energy source. This metabolic state can lead to several potential benefits, including:
Weight Loss: By depriving the body of carbohydrates, insulin levels are lowered, and fat stores are more readily burned for energy, potentially leading to weight loss.
Appetite Control: The higher fat and protein content of the diet may help you feel fuller for longer, reducing overall calorie consumption.
Blood Sugar Regulation: Some people with type 2 diabetes have reported improved blood sugar control on a keto diet.
Enhanced Mental Focus: Ketones can provide an alternative energy source for the brain, potentially leading to improved cognitive function for some individuals.
Epilepsy Treatment: The keto diet has been used as a therapeutic approach to manage certain types of epilepsy, particularly in children who don't respond well to medications.
However, the keto diet also comes with potential challenges and drawbacks:
Nutrient Imbalances: Restricting entire food groups can lead to deficiencies in certain vitamins, minerals, and fiber.
Keto Flu: As your body adapts to burning fat instead of carbs, you might experience flu-like symptoms, including headache, fatigue, nausea, and irritability.
Sustainability: The strict carbohydrate limitations can make the diet challenging to maintain over the long term.
Digestive Issues: The high-fat content can lead to digestive discomfort for some individuals.
Potential Health Risks: There are concerns about the long-term impact of consuming high amounts of saturated fats and the potential strain on kidney function due to increased protein intake.
Before starting a keto diet, it's important to consult with a healthcare professional or registered dietitian, especially if you have any underlying health conditions. They can help you determine if the keto diet is appropriate for your goals and guide you in creating a balanced and sustainable eating plan.
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