Monday-Friday: a. Coates, Michael Benwfits. This is why the person hlucose notice their monitorong Continuous glucose monitoring benefits for athletes remain Mental strength training or decline slowly during this zone flr training depending on if they take in fuel during training. In essence, CGM technology provides athletes with diabetes the tools they need to actively manage their condition. Call 1. This allows for the detection of fluctuations in blood glucose levels, including sudden spikes or drops. Download references.

Continuous glucose monitoring benefits for athletes -

Indeed, many athletes using CGM report that they have noticed they are underfueling. As with any coaching process, feedback is the key driver to change and improvement. This may be the most helpful aspect of CGM through the visibility it provides in an objective and non-judgmental way.

Without this visibility, the athlete can be unsure exactly what is happening, and change can lack the biofeedback required to expedite the process in a timely manner.

Use in training really depends on the phase of the season you are in and the goals for using a CGM. These aspects predominantly have their origins in exercise physiology, with some influence from understanding the physiology of those with diabetes.

With research in its infancy in the space of CGM use in non-diabetic populations, it is likely that this will continue, and practitioners will be helping inform the scientists for quite a while before the tables turn.

Remember that many factors impact glucose, the most significant three being exercise, food, and stress, so understanding and interpreting glucose can be challenging. Glucose generally remains largely unchanged during lower exercise intensities below the first threshold.

Beyond this intensity, there can be increases in glucose and generally, as metabolic stress accumulates, glucose will also increase.

In short, sprint-type activities with long rest periods it is unlikely to see much change in glucose either. This is most likely due to the metabolic pathways involved as intensity drives glucose oxidation and long rest breaks preventing significant metabolic stress.

Metrics currently used to understand and evaluate glucose during exercise include glucose levels and variability. The glucose levels and their trends give a good insight into circulating glucose availability — the combination of mobilized liver glycogen and carbohydrate intake.

This is particularly relevant when evaluating the efficacy of fueling strategies. Declining glucose levels, low glucose, or periods with unexplained but sizable reductions in glucose probably reflect suboptimal glucose availability.

These all play some role in variability, with the goal being less variable, more stable glucose. Whilst glucose is very individual and heavily contingent on the intensity of exercise, these principles look to be a good place to start from when evaluating glucose in general and in training.

It should first be noted that CGM use in UCI-sanctioned racing is banned , but it can be used in training and non-UCI races. CGM also remains available for use in other sports, such as triathlon and running. The first, and perhaps simplest, answer to this is that you can use your glucose data in real-time to help adjust fueling decisions.

This is available for some CGMs like Dexcom and Supersapiens , the former on Garmin devices and the latter on select Garmin and Wahoo devices. In these cases, you may use your current glucose level in addition to the trend of your glucose to adjust your fueling in real-time, based on experience from training on where you feel and perform best from a glucose perspective at a given intensity.

Beyond real-time fueling adjustment, there may still be value in live visibility of glucose. Similarly to using other metrics in training but not necessarily taking as much note of them in racing, you may use glucose likewise.

That is, working hard to dial in your feeling with your glucose levels may aid in better intuition in the medium to long term. In much the same way you evaluate your heart rate, pace or power post-race, you can learn from your glucose data post-race.

Your ability to flip-flop and efficiently use both of these forms of energy is termed metabolic flexibility. Your stored fat gives you the largest bang for your buck in terms of energy. You can exercise for hours at this pace since your body has a huge store of calories stored as fat, making fat a great fuel source for long sustained efforts.

Think of fuel source number 2, stored glycogen, as your reserve tank. Your muscles store glycogen, which can be broken down and used to contract skeletal muscle when you need it. While glycogen is a great source of quick fuel for sprints or a few short high-intensity efforts, these reserve tanks can only hold a certain amount of fuel.

The average male lbs can store between and kcals of glycogen-based energy in the muscle and liver combined. That translates to about kcals per pound of body weight. This amount of fuel will be significantly depleted after only about 90 min of high-intensity exercise.

What happens if your high-intensity exercise or competition is longer than 90 minutes, or if you start your athletic event with depleted glycogen stores? That brings us to fuel source number 3: carbohydrates that you ingest during exercise.

Carbohydrates are the primary energy source needed to facilitate sustained muscle contractions during exercise. So, if you are an athlete in a sport with repeated sprints, interval efforts, or sustained high-intensity exercise lasting longer than 45 minutes, then ingesting carbohydrates during exercise will help to spare liver glycogen stores and delay the onset of fatigue.

The duration and intensity of exercise largely dictate the amount of carbohydrates needed. To determine how to properly fuel your exercise, we need to specify the duration and intensity of your workout.

Please keep in mind that we are talking about fueling during competitions for optimal performance. Additionally, pre and post-exercise are different beasts and will also be discussed in future blog posts. This post is about what you need during your athletic event.

While traditional fueling guidelines provide a range of carbohydrate intake per hour for optimal performance, which is a good starting point, newer tools exist that may help track carbohydrate needs even more.

For instance, continuous glucose monitors CGM can report real-time glucose levels in the body during a workout. This technology provides a unique opportunity to personalize and dial in your fueling strategy to ensure that it is most effective and least damaging. These quantitative tools can give a snapshot of how the body is utilizing different sources of energy.

What do you want to see from your CGM to optimize performance during competition? If you are performing low-intensity exercise, then your blood sugar should not rise. Since the intensity of exercise is not high enough to cue your liver to mobilize stored glycogen, after you burn through the small amounts of glucose in circulation, your blood sugar should be steady as you primarily use fat for energy.

You can use the feedback provided by your CGM to check that you are exercising at your desired intensity. For example, if your goal is to utilize fat as a fuel source, or you have an easy day planned and want feedback to ensure you are not overexerting yourself, then you should shoot for your blood sugar levels to have a slight dip at the onset of exercise then be steady the rest of the workout.

A sudden increase in blood glucose could indicate your body is mobilizing stored glycogen to use as fuel, which is a sign that the intensity of the workout has increased beyond the capabilities of fat oxidation or that you ate something with carbohydrates right before your workout.

If the goal is to perform a low-intensity exercise and primarily utilize fat oxidation, this should be avoided. Fueling insights: No extra fuel is needed, nor will additional fuel enhance performance. Maximal muscle contractions are required to succeed. In competition, these maximal contractions will need to be repeated to advance through the rounds and compete for the win.

For muscles to produce a maximal contraction, they need adequate amounts of glucose. The muscles get this glucose from stored glycogen in the liver and the muscle cells themselves.

Often, people may see a rise in glucose during power sports as liver glycogen is released into the bloodstream as glucose to supply the muscles. Fueling insights: Stored liver and muscle glycogen will get you through the early parts of a power sports event.

Later in the event, eating a moderate amount of healthy glucose sources can help fuel maximal muscle contractions when glycogen may be running low. A little can go a long way, and big glucose spikes should be avoided, as they may lead to large insulin spikes that can impair fat oxidation and gluconeogenesis the process by which the body can make new glucose from other building blocks like lactate, glycerol, certain amino acids, and potentially ketone bodies in times of low glucose availability.

At high intensities, you will primarily be using glucose for energy, in the form of circulating glucose, glycogen, glucose ingested during the workout. On competition day, you want to make sure that you are not starting with extremely low blood sugar; if the athletic event starts at a high intensity, then you will be depleting your glycogen stores quickly, leaving you to rely on in-race feeding for any subsequent high-intensity efforts aka the sprint finish.

Checking your CGM can give you a sense of how much circulating glucose you have when you begin and is a clue as to whether fueling might be necessary during the workout. At the beginning of high-intensity exercise, your body secretes specific hormones called catecholamines, which cause glucose release from the liver to increase up to eight-fold.

Thus, it is not unusual to see a rise in your blood glucose at the beginning of a high-intensity workout. This rise is an indication that you are mobilizing your stored glycogen meaning the workout is too intense for your body to rely primarily on fat and needs to use glucose as fuel.

This increase in blood glucose during intense exercise can increase further immediately at exhaustion and persists for up to one-hour post-workout.

If you are competing in a self-paced sport e. This is an intriguing finding since less than 45 minutes of exercise should not deplete our glycogen stores fully; therefore, there should be no need for additional carbohydrates to fuel muscle contractions. The brain signals illuminated by mouth rinsing can produce afferent signals that modify motor output.

English Premier League athletes have been rinsing and spitting on the sidelines for years, as well as pro football players and runners. If you started with low glycogen stores because you were fasting or in a ketogenic diet, you might want to supplement with some ingested carbohydrates towards the end of a workout to optimize performance, but you do not want to consume so much that you see a large spike in glucose levels, which would indicate a subsequent insulin surge and possible impairment of fat oxidation or gluconeogenesis for energy.

Fueling insights: Extra fuel is not required, nor will additional fuel enhance performance. Your stored glycogen can adequately fuel a couple of quick bursts. However, if your muscle glycogen was low before beginning exercise because of a low carbohydrate diet or fasting, then you might see a drop in blood sugar after those quick bursts.

If the rest of your workout is low-intensity, then there is no need to fuel. Your fat can carry you through. However, if you still have a sprint or two left and your workout begins to encroach upon the middle ground between low and high intensity, you can take in small amounts of carbohydrates as tolerated to help you finish the last few sprints strong.

Fueling insights: Extra fuel is not required as glycogen stores should be sufficient in a healthy individual to sustain 75 minutes of activity. This can be achieved by mouth rinsing with carbohydrate solution or ingesting small amounts of carbohydrates as tolerated predominantly in the form of glucose and low in fiber.

Liquid carbohydrates grams per hour should be consumed at minute intervals throughout the exercise. Remember, the average person who has neither fasted nor followed a low carbohydrate diet has about 90 minutes worth of high-intensity exercise fuel stored as glycogen.

As these become depleted, glucose values on a CGM may start to dip, which may indicate that you want to fuel during your workout. When fueling before a workout to ensure optimal glycogen stores for a longer high-intensity workout, it seems that a good option is to ingest carbohydrates hours before the workout , rather than immediately before the workout meaning any time within 60 minutes of the workout.

This is because the carbohydrates will likely generate a glucose and insulin surge, and that insulin can impair fat oxidation and gluconeogenesis. If this happens hours before the workout, the glucose will be stored as glycogen, and the insulin will likely recover down to normal levels by the time of initiation of the workout.

On your CGM, this would look like a small glucose rise hours before the workout that returns to baseline by the time of the athletic event. Getting some carbs in, but not in extreme excess, will likely support the optimal hormonal balance. Fueling insights: Aim for grams of carbohydrate per hour predominantly in the form of glucose and low in fiber.

Liquid carbohydrates should be consumed at min intervals throughout exercise, while gels are optimally consumed every min. We need more research assessing the use of mouth rinsing for exercise lasting longer than 70 minutes, but it is unlikely that it will be as effective as consuming carbohydrates, as in this case, we actually need the fuel.

Thus, your best bet is to consume your fuels rather than rinse and spit. Fueling ideas to achieve optimal CGM feedback: Select your liquid, gel, or food of choice and shoot for consuming grams of carbohydrate per hour in a ratio of glucose to fructose to optimally utilize multiple transport methods.

Glucose uses GLUT2 and GLUT4 channels to transport across the cell membrane, and fructose uses GLUT5 channels. Thus, by utilizing both of these transmembrane carriers, you can maximize the amount of fuel entering the cell.

A ketogenic keto diet involves an extremely low intake of carbohydrates intended to encourage the body to burn fat as fuel. There are a few types of ketogenic diets, which differ in their macronutrient ratio some have a slightly higher carbohydrate allowance than others.

Keto diets have been shown to both improve insulin sensitivity and increase weight loss. How does this diet impact athletic performance? Studies investigating the effect of a ketogenic diet on anaerobic athletes found that, in general, it was not an effective way to increase anaerobic performance, such as weight lifting.

Endurance athletes have also experimented with keto diets. Theoretically, the large availability of fat in the body should transfer into increased whole-body and muscle fat utilization rates if these pathways are more active in a keto-adapted athlete.

Ketogenic diets result in greater fat oxidation rates, and some studies have shown that consumption of a ketone ester-containing beverage improved endurance performance read an excellent guide to exogenous ketones for performance here at the HVMN blog. However, while energy utilization is altered, studies have been mixed in showing whether a ketogenic diet is beneficial for performance when compared to healthy individuals on a carbohydrate-rich diet.

A ketogenic diet may impair performance on high-intensity activities due to a lack of quickly available fuel aka carbohydrates or glycogen.

Ultracyclist Ryan Collins gluckse, 26, benfits the Abbott Libre Sense Glucose Continuous glucose monitoring benefits for athletes applicator, Natural weight loss for emotional eaters it against the glucoes of his monitorint and pushes. In goes the fine needle Orange Juice Recipes, which gets inserted under his skin, and mlnitoring transmitter adheres to his arm. Athletez adds a protective adhesive patch over the transmitter, fires up the Supersapiens app, and is ready to start experimenting. First up: the gel trial. Collins grabs some fistfuls of gels and hops aboard the trainer for a seven-hour ride, the whole time watching his glucose levels rise and fall, aiming to stay in the literal sweet spot where his muscles have all the energy they need to fuel his marathon effort. He needs steady energy. A CGM lets you see your glucose levels in real time. Published in Conntinuous and Sensors. Since Continuous glucose monitoring benefits for athletes flr requires athleyes testing and monitoring, many people who exercise regularly often opt for periodic blood testing to check for athletees or other health markers. These tests typically include ones for Continuous glucose monitoring benefits for athletes concentration and Office detox diets blood sugar. A fasting blood sugar measures blood sugar at a single point in time and can be used to diagnose prediabetes and diabetes. But it does not allow people to measure and track their glucose values continually. Something that fills that gap is a continuous glucose monitor, once worn primarily by people with diabetes but quickly becoming a wearable preventive health device for healthy people. It can be one of the best ways for anyone participating in an endurance sport to track glucose levels continuously.

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So, Continuous glucose monitoring benefits for athletes, Continuous glucose monitoring benefits for athletes that can be done to increase the Continuous glucose monitoring benefits for athletes of winning should be used, right?

Perhaps not. Nowadays, it is fr to hear cycling fans complain about how races montioring become robotic. Heart-rate monitors, race radios, and power meters allow certain teams and athletes the ability to execute very predictable, robust strategies. Is this necessarily a bad thing?

After all, unpredictability is part of what makes racing fun. Preventing athletes from using continuous glucose monitors during races could reduce some of the robotic nature of endurance sports and keep the art of fueling on the table as a requirement for success.

This is especially true for professionals. Failure to fuel correctly may lead athletes to lose minutes on a mountain stage, for example.

This is all part of sport. Racers should have trained to handle the stressors and responses that make up a successful race day. Finally, we must see more evidence to suggest the data from CGMs is reliable and meaningful, and corresponds to what is actually happening in the body.

Using these devices in training as a learning tool is fine, but preventing the use of CGMs on race day to minimize robotic racing and keep the art of racing is encouraging. Carson Christen is an exercise physiologist and head coach and owner of Torden Multisport.

He is coach to amateur and professional cyclists and triathletes worldwide, which includes five national champion cyclists and an Olympian. Are you looking for ways to dial in the optimal nutrition strategy and create a safer way to manage energy during training and racing?

If so, then a CGM might be the way to go. These devices provide detailed data which helps to monitor blood sugar levels and nutritional consequences, which enables more effective training and racing regimes. This can improve long-term health by minimizing inflammation and elevated insulin levels long after the race is over.

Managing energy surges and slumps allows faster reaction times and better decision making as well. As a result, the likelihood of a crash or accident due to mental fatigue may be significantly reduced. Because CGMs offer real-time feedback in race situations, athletes can quickly make effective adjustments so that they can optimize performance and reach their goals.

Ultimately, CGMs simply provide users with deeper insight into some of the variables that influence performance. How is using a CGM any different than using a heart-rate monitor or a power meter during races?

There is no difference. A CGM is just another tool to help athletes understand and optimize performance. Some people may argue that using a CGM while participating in cycling or triathlon events should be banned, but there are many benefits to having continuous access to this information.

Having real-time data about glucose levels not only provides low blood sugar detection, but the data can also help ensure your body has the energy it needs to recover quickly. Cycling coach Hunter Allen is an advocate for the use of CGMs, and encourages athletes to consider using them during training and racing.

Instead of using a generic one-size-fits-all fueling strategy based on bodyweight and gender, endurance athletes can take charge of their nutrition by utilizing a CGM under various conditions.

By understanding how every individual body responds to various combinations of carbohydrate, fat, and protein in various training and racing conditions, athletes can take steps to avoid dreaded energy crashes and optimize performance. Suzanne Atkinson, M. She is the long-time coach of world champion triathlon and Paralympic triathlon guide Kirsten Sass.

Gale Bernhardt has coached Olympians and professional and recreational endurance athletes for years. Some want to go faster, some want to cross the finish line, while others simply want endurance sport as a lifestyle.

She provides ready-to-use, easy-to-follow training plans for cycling and triathlon. RELATED: Sports Nutrition Pathway Why is this information so valuable? Carson Christen Argues Against CGMs in Races First it was index shifting, then heart-rate monitors, followed by power meters.

Suzanne Atkinson Says Yes, Allow CGMs During Races Are you looking for ways to dial in the optimal nutrition strategy and create a safer way to manage energy during training and racing?

References Zeevi et al.

: Continuous glucose monitoring benefits for athletes

Using continuous glucose monitoring (CGM) to guide fueling for peak athletic performance - Levels	For a long time, diabetics would check their glucose levels periodically and then inject themselves with insulin depending on the level of sugar they obtained. During the training camp, the cyclist performed several personal best efforts power output for various durations and was in excellent shape. Maintaining proper glucose levels is essential during the training and recovery phases as it provides energy for muscle rebuilding, contributes to the clearance of metabolic waste, and replenishes energy stores. Effective glycemic management can aid in the prevention or postponement of diabetes-related complications and enhance overall quality of life. Indeed, manufacturers of athlete-specific devices market these products as a "fueling gauge," enabling athletes to "push their limits longer and get bigger gains. With knowledge of the typical glucose responses to exercise and diet in an athlete, deviations from expected glucose responses can be detected and be used to interpret levels of stress, energy availability and health. Hypoglycemia counterregulation during sleep.
The Use of Continuous Glucose Monitors in Sport: Possible Applications and Considerations	Challenges faced by athletes with diabetes Diabetes can impact Cellulite reduction massages for lymphatic drainage performance through increased urination Contibuous loss Continuous glucose monitoring benefits for athletes water weight, as well monitorjng fluctuations in insulin levels athletds and after exercise. Continuous glucose monitoring benefits for athletes other information than the Benegits curve, the elite cyclist that serves as an example can appear glucose intolerant. Article PubMed Google Scholar MacDonald TL, Pattamaprapanont P, Pathak P, Fernandez N, Freitas EC, Hafida S, et al. Support healthy blood sugar levels for optimal muscle building and weight loss. This supports our argument above that accomplished endurance athletes have an improved intrinsic ability to maintain normal to elevated blood glucose during extended exercise. Belmont, CA: Cengage Learning,
What types of fuel are used in exercise, and how do they cause fatigue?	CGMs replaced the traditional finger stick blood test, which could only provide a snapshot of blood glucose at a point in time, while the CGM provides a full-length continuous documentary of your glucose levels. For those with Type 1—especially athletes who exert themselves and have a high demand for blood glucose—CGMs were a game changer and potential lifesaver. Now companies are bringing CGMs to the masses to help them manage their blood sugar and metabolic health to hopefully avoid Type 2 diabetes and other chronic disease, as well as improve fitness and performance. The three biggest players right now are NutriSense, Levels, and Supersapiens which is not yet available in the U. Some experts are hailing CGMs as the gateway to better health for millions of Americans, who have high levels of chronic metabolic disease. The UCI has banned them in cycling competition. When you're working out at a high intensity , muscles break down glycogen or stored glucose for fuel. Meanwhile, the liver releases glycogen to raise your blood sugar. Both mechanisms give you the energy you need to perform. Once your glycogen stores run dry, you start relying on fat, which can go a long way, but it can only be used at low intensities , so you have to dial down the pace—sometimes dramatically—and watch your competitors roll away. These are, of course, general recommendations, and CGMs may help you pinpoint what you actually need. Ultimately, the amount of energy we need depends on our fitness the fitter the athlete, the more energy is needed to fuel that fitness. In those circumstances, you want a nice stable, moderate glucose level. Your body regulates your glucose to maintain a relatively constant baseline. It does so through insulin and muscle contraction, Lim says. Either way, the body is always trying to keep blood glucose levels very constant. Low levels hypoglycemia bring about shakiness, irritability, weakness, and irregular heartbeat. High levels are problematic, too, especially over time. High levels of sugar overload the liver, increase inflammation , and lead to higher amounts of stored fat. When you have a large spike, your body needs to release more insulin to bring those levels down. Repeat that process over and over and you can develop insulin resistance where the cells become unresponsive to insulin and let the excess sugar course through your system. That sets the stage for chronically high glucose levels and Type 2 diabetes. On the general health front, a CGM can be a powerful tool, Lim says. Liquid carbs crank up your blood sugar levels. That requires looking at what you eat, but also when you eat, your state of mind, and your overall lifestyle. CGMs help you fine tune your fueling strategy before, during, and after a ride. It can also help you understand the lag time between the fuel you take in and the increase in glucose with different foods and drinks, which can help you time your fueling better. Overall, the real value of CGMs is just that: dialing in your fueling plan during and around training rather than trying to use it in real time as a fuel gauge. CGM technology is very useful for preride and prerace fueling strategies , Lim says. When you eat, glucose levels rise, which triggers insulin to bring blood sugar down by moving it into muscle. But if you start exercising in that window, you also have your contracting muscles moving even more glucose out of the bloodstream. A CGM helps you figure out the timing and composition of those before-exercise meals and snacks. Or if your event is super early, you could be best off just eating a little right before and fueling as you go. With experimentation, you can learn the fueling strategy that works best for you as an individual, says former pro cyclist Brad Huff, global ambassador manager for Supersapiens. Along with his seven-hour gel experiment, Collins has pulled similar multi-hour trainer sessions using Skratch Superfuel, Clif Bars, and various combinations of pure carbs and mixed macronutrient energy foods. Wearing a CGM also shows you the importance of early recovery nutrition , Huff says. By incorporating a CGM into your training routine, you can gain a better understanding of your body's energy levels, nutritional needs, and recovery capabilities, leading to more effective and sustainable fitness results. Sign up here. Vively is reimagining how healthcare is delivered with the world's first online holistic healthcare clinic. Discover how controlling your glucose levels can aid in ageing gracefully. Learn about the latest research that links glucose levels and ageing, and how Vively, a metabolic health app, can help you manage your glucose and age well. Delve into the concept of mindful eating and discover its benefits, including improved glucose control and healthier food choices. Learn about practical strategies to implement mindful eating in your daily life. Understand the nuances of polycystic ovary syndrome PCOS testing in Australia, the importance of early diagnosis, and the tests used to effectively diagnose the condition. Also, find out when these diagnostic procedures should be considered. We acknowledge the Traditional Custodians of the lands where we live and work, the Gadigal of the Eora Nation. We pay our respects to their Elders past and present. CGM Program. For Organisations. Button Text. Your Cart. Product is not available in this quantity. What is a CGM? Benefits of CGMs for Fitness Understanding Energy Levels CGMs can provide insights into how your body responds to different types of exercise, allowing you to tailor your workouts accordingly. Improved Nutritional Awareness Monitoring your glucose levels can help you identify how different foods affect your blood sugar. Enhanced Recovery A CGM device can help you monitor how well your body recovers after a workout. Better Sleep Quality Sleep plays a crucial role in recovery and overall health. Adding CGMs into Your Training Routine Setting Baselines Before using a CGM to optimise your workouts, establish a baseline by tracking your glucose readings for a week or two. This technology has been used in people with diabetes for a long time but is becoming increasingly popular in the health, longevity, and performance spaces. The interstitial fluid approximates the blood glucose levels quite well at rest, though it is less reflective in states of significant change. In people with diabetes, numerous accuracy studies have been conducted on various CGM devices. Most studies show a modest reduction in sensor accuracy when glucose levels change rapidly because of rapid changes in the interstitial fluid that can be caused, for example, by exercise or feeding. However, it is important to underline that CGMs are considered more than accurate enough to support decision-making even in the clinical setting That said, there is a suggestion that in a population of people without diabetes, measuring glucose from the interstitial fluid is more accurate 5. One thing to note here is that glucose values, as shown on CGMs, are the net result of delivery and utilization: delivery from the blood to the interstitial fluid and uptake into the muscle for utilization. As a result of the two-factor nature of this number, increases can result from increased delivery or decreased utilization and vice versa. Similarly, if a situation arose where there were perfectly matched increases in both, the net result would be unchanged from the baseline this is rarely, if ever, seen. Maintaining stable glucose concentrations has also been described as one of the potential determinants of endurance performance 6,7. The goal for these athletes is generally greater confidence in their fueling strategy. CGMs allow us to swiftly see the impact of a certain nutritional product or its timing on our glucose levels. CGMs provide insight into circulating glucose availability in the body, which reflects the interplay of both liver glycogen mobilization muscle glycogen acts locally and is thus not visualized on CGMs and exogenous carbohydrate intake any carbohydrates ingested. There are many metrics that CGMs can output, which include the live visibility of the glucose level itself. Additionally, some companies have started to target individuals without diabetes and the performance market and have developed other metrics, such as fueling scores. Given the propensity for under, rather than overfueling in endurance athletes, there may be some questions as to whether CGM has potential for use and even if it could be detrimental in this aspect. Whenever bringing attention to something — in this case glucose — there is the likelihood that you start to emphasize it more. Indeed, many athletes using CGM report that they have noticed they are underfueling.