What is a keto diet?

Blog Author
Harry Longworth
Date of post
23 February 2024
Blog Category

In recent years, the ketogenic diet, or keto diet, has gained significant popularity as a powerful tool for weight loss and overall health improvement. But what exactly is the keto diet, and how does it work? In this blog post, we’ll delve into the fundamentals of the keto diet, its principles, benefits and potential risks.


The ketogenic diet is a high-fat, low-carbohydrate eating plan designed to induce a state of ketosis in the body. Ketosis is a metabolic state where the body shifts from using glucose as its primary fuel source to burning fat for energy. By drastically reducing carbohydrate intake and increasing fat consumption, the keto diet aims to promote fat loss and improve metabolic health.


  • Low Carbohydrate Intake: The keto diet typically restricts carbohydrate intake to 20-50 grams per day, focusing on non-starchy vegetables, nuts, seeds, and limited amounts of low-carb fruits.
  • Moderate Protein Consumption: Protein intake is moderate on the keto diet, with most of the calories coming from fat sources. This helps prevent excess protein from being converted into glucose, which could hinder ketosis.
  • High Fat Intake: The cornerstone of the keto diet is its emphasis on high-fat foods such as avocados, nuts, seeds, olive oil, coconut oil, butter, and fatty cuts of meat. These fats provide the majority of calories and help sustain ketosis.


  • Weight Loss: By promoting fat burning and reducing appetite, the keto diet has been shown to be effective for weight loss, particularly in the short term.
  • Improved Blood Sugar Control: The keto diet may help stabilise blood sugar levels and improve insulin sensitivity, making it beneficial for individuals with type 2 diabetes or insulin resistance.
  • Enhanced Mental Clarity and Focus: Many people report increased mental clarity, focus, and cognitive function when following a ketogenic diet, likely due to the brain’s utilisation of ketones for energy.
  • Increased Energy Levels: Once adapted to ketosis, many individuals experience sustained energy levels throughout the day without the energy crashes associated with carb-heavy diets.
  • Potential Therapeutic Applications: Emerging research suggests that the keto diet may have therapeutic applications for various health conditions, including epilepsy, Alzheimer’s disease, Parkinson’s disease, and certain types of cancer.


While the keto diet offers numerous benefits, it’s essential to consider potential risks and limitations. Some individuals may experience initial side effects, often referred to as the “keto flu,” including fatigue, headache, dizziness, and digestive issues. Additionally, the long-term effects of the keto diet on metabolic health and cardiovascular risk factors are still being studied, and more research is needed to fully understand its implications.


If you’re considering trying the keto diet, it’s essential to consult with a healthcare professional, registered dietitian or an experienced online coach to ensure it’s safe and appropriate for you, especially if you have underlying health conditions or are taking medications. 

The keto diet offers a unique approach to weight loss and metabolic health, harnessing the body’s natural ability to burn fat for fuel. While it may not be suitable for everyone, the keto diet can be a tool for those seeking to optimise their health, improve metabolic markers, and achieve sustainable weight loss. By understanding the principles, benefits, and potential risks of the keto diet, you can make informed decisions about whether it’s the right approach for you.

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