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As a Registered Nutritional Therapist, I am asked more and more about Continuous Glucose Monitors (CGMs) by my clients. I thought it would be useful to share my thoughts on this increasingly popular tool and how it can support overall health and wellbeing. In recent years, CGMs have become a popular tool for managing blood sugar levels among those with diabetes. However, CGMs are not just for individuals living with the condition; they can be a powerful tool for anyone looking to take control of their health and gain deeper insights into their body’s responses to food, exercise, and lifestyle choices. What Is a CGM? A CGM is a small, wearable device that tracks glucose levels in real time. It measures the glucose in the interstitial fluid (the fluid surrounding your cells) and provides a continuous stream of data via a connected app. Unlike traditional glucose testing methods that require finger pricks, CGMs offer a painless and convenient way to monitor how your blood sugar changes throughout the day. In the past, CGMs were primarily designed for individuals with diabetes. However, sensor manufacturers have recognised their potential for improving health in the non-diabetic population. As a result, they have increased production and developed apps tailored to meet the needs of this broader audience. Why Monitor Blood Sugar If You’re Not Diabetic?While non-diabetics don’t face the same challenges with blood sugar regulation, maintaining stable glucose levels is essential for overall health. Here are some key benefits of using a CGM as a non-diabetic: 1. Understand Your Body’s Response to FooD Everyone’s body reacts differently to carbohydrates, fats, and proteins. A CGM allows you to identify which foods cause spikes or crashes in your blood sugar. Interestingly, in my experience, many assumptions about which foods spike blood sugar turn out to be incorrect. Time and time again, clients have been surprised by foods they believed to be harmless, only to find these choices significantly affected their glucose levels. This insight can help you tailor your diet to improve energy levels, reduce cravings, and optimise digestion by focusing on what truly works for your body. 2. Support Weight ManagemenTBlood sugar fluctuations can lead to increased hunger and fat storage, particularly when levels spike and crash. By tracking your glucose patterns, you can make informed choices that help stabilise your levels, reducing overeating and promoting fat metabolism. 3. Improve Energy and FocuS Ever experienced a mid-afternoon slump? This is often due to blood sugar crashes. Monitoring your glucose can help you pinpoint what might be causing those dips and adjust your meals or snacks, accordingly, leading to sustained energy and improved concentration throughout the day. 4. Optimise Exercise PerformanceYour glucose levels play a significant role in fuelling sport. By using a CGM, you can determine whether you need to adjust your pre- or post-workout nutrition to maximise performance and recovery. 5. Detect Early Signs of Dysregulation Many people experience issues with glucose regulation long before a diagnosis of prediabetes or diabetes. A CGM can reveal patterns that might indicate insulin resistance or other metabolic concerns, giving you the opportunity to make preventative lifestyle changes. 6. Support Skin Health: Eczema and Dermatitis Blood sugar stability plays a crucial role in reducing systemic inflammation, which can exacerbate skin conditions like eczema and dermatitis. Spikes and crashes in glucose levels can trigger inflammatory responses, potentially worsening symptoms. By using a CGM to maintain steady blood sugar levels, you can help support your skin’s barrier function and reduce flare-ups, promoting healthier, calmer skin. The Role of CGMs in Intermittent Fasting Intermittent fasting has gained popularity as a strategy for improving metabolic health and supporting weight management. However, the ideal fasting window can vary significantly from person to person. A CGM provides valuable data into how your glucose levels respond during fasting periods and when you break your fast. By monitoring your glucose trends, you can determine:
Interestingly, prolonged fasting can sometimes cause blood sugar levels to rise instead of fall. This is due to a phenomenon called the "dawn effect" or "glucose sparing," where the liver releases glucose into the bloodstream to provide energy during extended periods without food. Understanding this response through CGM data can help you fine-tune your fasting practice to avoid unintended glucose spikes and ensure it aligns with your health goals. The Effects of Sleep on Blood Sugar Sleep quality has a significant impact on blood sugar levels. Poor sleep can disrupt the body’s hormonal balance, including the release of insulin and cortisol, leading to elevated glucose levels the following day. Studies have shown that even a single night of inadequate sleep can impair glucose metabolism and increase insulin resistance. Using a CGM, you can observe how your blood sugar responds after a restless night compared to a well-rested one. By understanding the relationship between sleep and blood sugar, you can implement strategies that promote both restful nights and optimal metabolic health. Understanding the Impact of Stress on Blood Sugar Stress is a significant factor influencing blood sugar levels. When you experience stress, your body releases cortisol, a hormone that can cause glucose levels to rise. While this is a normal response, chronic stress can lead to prolonged periods of elevated blood sugar, contributing to metabolic dysregulation and inflammation. Using a CGM can help you identify:
Armed with this information, you can implement strategies to mitigate the effects of stress on your blood sugar, supporting both your physical and mental wellbeing. The Importance of Blood Sugar Balancing for Everyone Blood sugar stability isn’t just about preventing diabetes—it’s a cornerstone of good health for everyone. When blood sugar levels fluctuate wildly, it can lead to a cascade of symptoms and issues, including:
For those with dermatitis or eczema, blood sugar stability is particularly vital. Spikes in glucose can exacerbate inflammation, which in turn may worsen flare-ups. By maintaining steady glucose levels through balanced meals, regular activity, and stress management, you can support both your skin health and overall wellbeing. A CGM provides real-time feedback, allowing you to identify and address habits or foods that may be contributing to blood sugar instability. This proactive approach is essential for reducing inflammation and promoting long-term health. Data Is Only as Useful as Its Interpretation Having access to CGM data is an excellent first step, but its true value lies in how it’s interpreted and applied. Simply knowing that a food like porridge causes your blood sugar to spike isn’t enough. The key is to understand the context and take actionable steps to improve your response. For example:
A Registered Nutritional Therapist or healthcare provider can help you interpret the data and create strategies tailored to your goals. This ensures that your CGM insights lead to meaningful changes, rather than just an overwhelming stream of numbers. By focusing on interpretation and practical application, you can turn CGM data into a powerful tool for lasting health improvements.
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AuthorI’m Jessica Fonteneau, I’m the eczema specialist and I help people Escape from the Eczema trap. Archives
December 2024
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