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Can the Ketogenic Diet Spike Cortisol

author avatar Dr. Eric Berg 10/24/2024

Most people who haven’t yet adopted a ketogenic lifestyle have a condition called insulin resistance.

This condition arises as the body tries to compensate for the excess carbohydrates in a standard American diet.

It’s the body’s way of protecting itself from too much glucose.

However, the pancreas still needs to deliver insulin to the cells. Since the body resists insulin, the pancreas produces more and more of it.

Doctors rarely check for high levels of insulin. Instead, they primarily focus on blood glucose levels. As a result, excess insulin often goes unnoticed.

When you switch to a keto diet, you consume fewer carbs. This is helpful, but it doesn’t immediately cure insulin resistance, so your body continues producing excess insulin.

Your blood sugar then drops lower and lower. This is where keto cortisol levels come in.

Understanding Keto Cortisol Levels

Cortisol is a hormone with various functions, one of which is protection against hypoglycemia, also known as low blood sugar.

In fact, cortisol is also known as glucocorticoid; Gluco – sugar. Cortisol essentially stimulates a process called gluconeogenesis, which is the creation of new glucose.

When you're in ketosis and experience lower blood sugar levels due to dietary changes, cortisol steps in to maintain balance.

Cortisol can raise those blood sugar levels. It accomplishes this through protein and fat, not carbohydrates like usual. It’s a necessary process.

Cortisol levels tend to increase when you start keto. Don’t worry, this is a temporary adaptation.

Eventually, your body will adjust to using fat as its primary fuel source.

Wood blocks spelling insulin resistance

The Connection Between Insulin Resistance and Cortisol

Insulin resistance occurs when your cells don't respond to insulin as efficiently as they should.

As a result, your blood sugar remains higher than usual, prompting your pancreas to produce more insulin to try and get that sugar into the cells.

This constant demand on your pancreas can stress your adrenal glands, leading to chronically elevated cortisol levels.

This is why managing insulin resistance is essential for overall health, particularly when transitioning to a ketogenic diet.

How Long Does It Take for Keto Cortisol Levels to Stabilize?

It typically takes a few weeks to a few months for keto cortisol levels to stabilize.

The longer you follow a ketogenic diet, the more your blood sugar will decrease, and the more your body will naturally heal.

Your insulin resistance will eventually improve to the point where it’s no longer an issue.

At this point, cortisol levels should even out. However, several factors can influence this timeline, including your stress levels, sleep quality, and how strictly you adhere to the ketogenic diet.

Factors Affecting Keto Cortisol Levels

Several factors can influence how your body produces cortisol while on a keto diet. These include pre-existing conditions, stress, and sleep quality:

  • Stress: Chronic stress can elevate your cortisol levels. Try incorporating stress management techniques, such as yoga and meditation, into your daily routine.

  • Sleep: Inadequate sleep increases your cortisol. Aim for at least 7-8 hours of quality sleep each night. Your body needs this time to rest and regulate hormone production effectively.

  • Calorie Deficit: A severe calorie deficit can sometimes cause a temporary increase in cortisol levels, especially as your body adjusts to a new diet. It’s important to ensure you’re consuming enough calories to support your body’s needs, even when in a calorie deficit for weight loss.

  • Electrolyte Imbalance: As your body adjusts to a low-carb intake, you may experience electrolyte imbalances. These can disrupt your hormonal balance and affect cortisol levels. Replenishing those electrolytes is important. Focus on consuming electrolyte-rich foods and drinks. These include bone broth, avocados, and spinach.

You can support healthy cortisol levels and minimize any potential for negative effects while on a ketogenic diet by addressing the above factors.

It’s essential to approach the keto diet holistically, focusing on stress management, sleep quality, and overall well-being, in addition to dietary changes.

Woman with ketogenic foods

How the Keto Diet Can Influence Stress Hormones

Cortisol, often referred to as the stress hormone, plays a key role in regulating energy levels, metabolism, and stress response.

While the keto diet can have many benefits, it can also influence cortisol levels, particularly in the initial stages of adaptation.

For some, the reduction in carbohydrates may trigger a short-term increase in cortisol as the body adjusts to using fat as its primary fuel source.

However, with time and proper nutrition, cortisol levels can stabilize, leading to improved stress management and hormonal balance.

To help maintain a proper keto lifestyle, enjoying nutrient-rich foods like a keto spinach artichoke dip can offer both comfort and sustenance without negatively affecting cortisol.

Conclusion

Understanding the relationship between the keto diet and keto cortisol levels is crucial.

This knowledge helps ensure a smoother transition into a ketogenic lifestyle.

Remember, the initial rise in cortisol is temporary, as your body adjusts to its new way of functioning.

However, suppose you’re still concerned about your cortisol levels after a few weeks on a keto diet.

In that case, consult a healthcare professional for advice.

They can provide personalized recommendations based on your individual health status and needs.

FAQs about Keto Cortisol Levels

Does ketosis increase cortisol?

Initially, yes, ketosis can temporarily increase cortisol levels, especially in the first few weeks.

This happens as your body adapts to burning fat for fuel instead of glucose.

This increase is primarily due to the body’s natural response to changes in energy metabolism.

What diet is best for high cortisol levels?

Focus on consuming a proper diet to manage cortisol levels. Choose plenty of whole, unprocessed foods, including:

  • Fruits and vegetables: Berries, leafy greens, and cruciferous veggies can be beneficial.

  • Healthy fats: Avocado, nuts, and olive oil are all good options.

  • Lean protein sources: Choose poultry, fish, and plant-based proteins.

Can not eating enough cause high cortisol levels?

While prolonged calorie restriction can lead to elevated cortisol levels, it’s not the only factor.

Chronic stress, poor sleep, and intense exercise without adequate recovery can also increase cortisol.

It's essential to find a balance between calorie intake and expenditure.

Listen to your body, eat when genuinely hungry, and opt for nutrient-dense foods.

Aim for a moderate calorie deficit rather than severe restriction for sustainable weight loss and hormonal balance.

Do carbs increase cortisol levels?

Consuming too many simple carbohydrates can cause spikes in blood sugar and insulin levels.

This leads to an increase in cortisol levels. This is particularly true for sugary foods and drinks.

Choose complex carbohydrates such as those found in vegetables and whole grains.

Limit your intake of processed products high in sugar, refined grains, and unhealthy fats.



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