The ketogenic or keto diet is a high-fat, low-carbohydrate diet that has recently gained popularity. It involves reducing carbohydrate intake and replacing it with healthy fats to promote weight loss, improve metabolic health, and reduce the risk of chronic diseases. 

While many people are familiar with the basics of the keto diet, several unexpected facts about this dietary approach are worth exploring, and where to find keto cooking recipes. 

1. The Keto Diet Was Initially Developed to Treat Seizures

The ketogenic diet was first developed in the 1920s to treat epilepsy, a neurological disorder that causes seizures. The diet effectively reduced the frequency and severity of seizures in children with epilepsy, and it remains a treatment option for some people with the condition today.

2. The Keto Diet Can Lead To Bad Breath

One of the side effects of the keto diet is bad breath, or “keto breath.” This occurs because the body produces ketones, which are released in the breath and can have a distinct odor. While unpleasant, keto breath is usually temporary and can be managed with good oral hygiene.

3. The Keto Diet Can Affect Athletic Performance

While the keto diet is effective for weight loss and improving metabolic health, there may be better choices for athletes or those who engage in high-intensity exercise. The body’s preferred energy source during exercise is carbohydrates, and the keto diet restricts carbohydrate intake. Some athletes who follow the keto diet may experience a decrease in performance, although others have reported success with the diet.

4. The Keto Diet Can Lead To Nutrient Deficiencies

Because keto diet meal plans are low in carbohydrates, it can be challenging to meet your daily requirements for certain nutrients, such as fiber, vitamin C, and potassium. It’s essential to include a variety of nutrient-dense foods in your diet, such as leafy greens, nuts and seeds, and low-carbohydrate fruits, to ensure you’re getting all the nutrients your body needs.

5. The Keto Diet Can Cause the “Keto Flu”

When you first start the keto diet, you may experience flu-like symptoms, such as headaches, fatigue, and nausea. This is known as the “keto flu,” and it occurs because your body adapts to the new way of eating. These symptoms usually subside within a few days to a week and can be managed with proper hydration and electrolyte supplementation.

6. The Keto Diet Can Improve Cognitive Function

Several studies have shown that the keto diet may benefit cognitive function, including memory and focus. This is because the brain can use ketones for energy, produced during the metabolic process of burning fat for fuel. Some researchers have even suggested that the keto diet may be a potential treatment for neurological disorders, such as Alzheimer’s disease.

7. The Keto Diet Can Lower Blood Sugar Levels

The keto diet effectively reduces blood sugar levels, which benefits people with type 2 diabetes or insulin resistance. This is because the diet restricts carbohydrate intake, which can cause blood sugar levels to spike. By reducing carbohydrate intake and increasing healthy fat intake, the body can better regulate blood sugar levels.

8. The Keto Diet Can Lead To Weight Loss

One of the main reasons people follow the keto diet is for weight loss. Reducing carbohydrate intake and increasing healthy fat intake forces the body to burn fat for fuel instead of glucose. This can lead to significant weight loss, especially in the first few weeks of following the diet.

9. The Keto Diet Can Be Challenging to Maintain Long-Term

While the keto diet can be effective for weight loss and improving metabolic health, it cannot be easy to maintain long-term. The diet is very restrictive and challenging, especially when eating or traveling. Some people may also experience side effects, such as constipation or increased cholesterol levels, making it challenging to stick with the diet.

10. The Keto Diet May Not Be Suitable for Everyone

People with certain medical conditions, such as pancreatitis or liver disease, should not follow the diet. Also, pregnant or breastfeeding women should avoid the diet, which can negatively affect fetal development.


The keto diet is a popular dietary approach with numerous potential benefits, including weight loss, improved metabolic health, and reduced risk of chronic diseases. However, it’s essential to be aware of the diet’s potential side effects and limitations and consult a healthcare professional before making significant dietary changes. By taking a balanced and informed approach, you can determine whether the keto diet is proper for you and reap the potential benefits of this dietary approach.

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