Why am I struggling to lose weight on a diet?

Posted on June 17, 2024 by Sally-Anne Turner

Losing weight can be a challenging journey, and many people find themselves struggling to shed those extra pounds despite their best efforts. Even when eating less and moving more, some people simply don't see the weight shift. This frustration is incredibly common, and if you're experiencing it, you're certainly not alone in your struggles. The reality is that weight loss is far more complex than the simple equation of "calories in versus calories out" that we've been told for decades. Your body is an intricate system influenced by genetics, hormones, lifestyle factors, stress levels, sleep quality, medical conditions, and even the medications you take. All of these elements interact in ways that can either support or hinder your weight loss efforts, often in ways that aren't immediately obvious.

If you're wondering why you're having difficulty losing weight on a diet, several factors could be at play. That's why here at Bodyline we want to help you explore some of the most common reasons why weight loss may be challenging and how medical weight loss programmes, like the ones offered at Bodyline, could help you overcome these obstacles in your weight health. Understanding these underlying factors is the first step toward finding a solution that actually works for your unique circumstances. At Bodyline, we've supported over 100,000 patients across the UK through their weight loss journeys over the past 18 years, and we've seen firsthand how addressing these hidden barriers can transform someone's ability to lose weight and maintain that loss long-term.

The Importance of Caloric Deficits

The most important thing to remember when embarking on a weight loss journey is the importance of a calorie deficit. Ultimately, weight loss comes down to consuming fewer calories than you burn while going about your day so that the body begins to burn the stored fat instead, leading to fat loss. This fundamental principle of thermodynamics cannot be escaped – your body requires energy to function, and when you provide less energy through food than it needs, it must draw upon stored energy reserves in the form of body fat. However, while this principle is straightforward in theory, the practical application is where most people encounter difficulties.

All fad diets are essentially different ways to be within a calorie deficit but are unsustainable thanks to their extreme rules. Whether it's cutting out entire food groups, eating only at certain times of day, or following complicated meal plans that require extensive preparation, these approaches often fail because they're simply too restrictive to maintain in real life. You might lose weight initially when motivation is high, but as soon as normal life resumes – with its social events, work pressures, family commitments, and unexpected challenges – these rigid dietary rules become impossible to follow. This is why so many people find themselves trapped in a cycle of losing and regaining the same weight repeatedly, often ending up heavier than when they started.

Many people struggle to accurately track their caloric intake or may unknowingly consume more calories than they realise. Portion control, mindful eating, and tracking your food intake can help you create the necessary caloric deficit for weight loss. Research has shown that people typically underestimate their calorie intake by approximately 20-30%, and this discrepancy can completely eliminate a calorie deficit. Those "little bites" while cooking, the handful of nuts as a snack, the milk in your coffee, the dressing on your salad – these all add up throughout the day. Additionally, restaurant portions have increased dramatically over the past few decades, distorting our perception of what a normal serving size should look like. What you think is a single portion might actually be two or three servings' worth of calories.

The crux of medical weight loss programmes is that the safe diet pills or weight loss injections are effective appetite suppressants, working to curb your food cravings and hunger, thus leading to a calorie deficit that is much easier to maintain. They also provide holistic support and nutritional guidance to ensure you maintain a proper caloric deficit while still meeting your nutritional needs. At Bodyline, our experienced nurses work with patients to develop personalized eating plans that create an appropriate calorie deficit without leaving you feeling constantly hungry or deprived. This is achieved through a combination of appetite suppressant medications like Phentermine or Diethylpropion, or weight loss injections such as Wegovy, Mounjaro, or Saxenda, alongside practical nutritional advice that helps you make sustainable changes to your eating habits.

The beauty of medically supervised weight loss is that it addresses the biological drive to eat that makes calorie restriction so difficult to maintain through willpower alone. When you're constantly fighting hunger, your body increases production of hunger hormones like ghrelin while decreasing satiety hormones like leptin, making it progressively harder to stick to your diet. Medical weight loss treatments work with your body's natural systems to reduce these hunger signals, making it genuinely easier to eat less without feeling like you're in a constant battle with yourself. This is why patients at Bodyline often report that weight loss feels more manageable than it ever has before – because they're finally working with their biology rather than against it.

Genetics

Genetics play a significant role in our body's composition and metabolism. Some individuals may have a genetic predisposition to store fat more easily or have a slower metabolic rate, making it harder to lose weight. While you can't change your genes, understanding your how your genetics impact your fat loss can help to tailor your weight loss approach. Scientists have identified numerous genetic variants that influence body weight, fat distribution, appetite regulation, and metabolic rate. Some people are simply born with a genetic makeup that makes maintaining a lower body weight more challenging, and this isn't a reflection of willpower or character – it's basic biology.

Your genetic inheritance influences where you store fat on your body, how efficiently your body burns calories at rest, how you respond to different types of exercise, and even how your brain responds to food cues and satiety signals. Some people have genetic variants that mean they need to eat more before feeling satisfied, or they experience stronger cravings for high-calorie foods. Others may have a naturally lower metabolic rate, meaning they burn fewer calories at rest than someone of the same size and age. Research has shown that metabolic rate can vary by as much as 20-30% between individuals, even after accounting for differences in body size and composition. This means that two people of identical height and weight might require significantly different calorie intakes to maintain or lose weight.

The genetic component of obesity is substantial – studies of twins and adopted children have shown that genetics account for approximately 40-70% of the variation in body weight between individuals. This doesn't mean that weight loss is impossible if you have a genetic predisposition to obesity, but it does mean that you may need to work harder than someone with a different genetic makeup to achieve and maintain the same results. This is where the blame and shame often associated with obesity becomes particularly harmful – people are essentially being judged for struggling with something that is significantly influenced by factors completely outside their control.

At Bodyline, we understand that genetics can create real barriers to weight loss, which is why our approach is never one-size-fits-all. Our experienced clinical team takes the time to understand your individual circumstances, including your family history of obesity, your personal weight history, and how your body has responded to previous weight loss attempts. This information helps us develop a treatment plan that's tailored to your specific needs. For someone with a strong genetic predisposition to obesity, more intensive medical support may be appropriate, including higher doses of medication or combination treatments. We also provide realistic expectations about what's achievable, helping you set goals that are appropriate for your individual circumstances rather than comparing yourself to others who may have very different genetic starting points.

Book a consultation at Bodyline Clinic to discuss how our personalised approach to medical weight loss can work with your individual genetic makeup to achieve sustainable results. Our clinics are located throughout the Northwest of England, including Birkenhead, Liverpool, Manchester, St Helens, Stockport, Stoke-on-Trent, and Warrington, and we also offer online consultations for patients across the UK.

The Wrong Type of Exercise

Exercise is an essential component of any weight loss journey, but not all exercises are created equal. For example, focusing solely on cardiovascular exercises like running or cycling may burn calories but not necessarily lead to significant weight loss alone. Yet, this is what we have been told to do to lose weight! The traditional advice has been to "do more cardio" if you want to lose weight, but this oversimplified recommendation misses crucial aspects of how exercise affects body composition and metabolism. While cardiovascular exercise certainly has important health benefits for your heart, lungs, and overall fitness, it's not necessarily the most effective approach for changing your body composition or boosting your metabolic rate.

Incorporating strength training exercises can help build lean muscle mass, which boosts your metabolism and promotes fat loss. Research has shown that combining 'resistance training', such as lifting free weights, using weight machines, and exercising with dumbbells with a reduction in calories has been found to be the most effective exercise for fat loss. Muscle tissue is metabolically active, meaning it burns calories even when you're at rest. The more lean muscle mass you have, the higher your resting metabolic rate will be, which means you'll burn more calories throughout the day, even when you're sitting at your desk or sleeping. This is why strength training is so valuable for weight loss – it doesn't just burn calories during the workout itself, it increases your daily calorie expenditure long-term.

Medical weight loss programmes at Bodyline include support and guidance from experienced healthcare nurses who can help dispel all the most common weight loss misconceptions while supporting you through a journey to lose weight. Our team understands that many people feel intimidated by the idea of strength training, particularly if they're carrying significant excess weight or haven't exercised regularly in years. We provide practical, achievable advice about how to incorporate resistance training into your routine in a way that's appropriate for your current fitness level. This might start with bodyweight exercises at home, resistance bands, or light dumbbells before progressing to more intensive training as your fitness improves.

Another common exercise mistake is doing too much, too soon. When people decide to lose weight, they often throw themselves into intensive exercise regimens that are unsustainable and can even be counterproductive. Excessive exercise without adequate recovery can increase stress hormones like cortisol, which can actually promote fat storage, particularly around the midsection. It can also increase appetite significantly, leading people to eat more than they realize and potentially negating the calorie deficit they're trying to create. Additionally, if you're exercising to the point of exhaustion, you're likely to be less active throughout the rest of your day, reducing your overall daily energy expenditure.

The most effective exercise approach for weight loss is one that you can maintain consistently over time. This means finding activities you actually enjoy, or at least don't actively hate, and building them into your routine in a sustainable way. For most people, this looks like a combination of regular walking (which is often underestimated as a weight loss tool), two to three strength training sessions per week, and perhaps one or two more intensive cardio sessions if desired. This balanced approach builds fitness, preserves muscle mass during weight loss, and is much more likely to be maintained long-term than extreme exercise regimens that leave you exhausted and dreading your next workout.

Hormonal Imbalances

Depending on the stage of your life, it can be down to your hormones that are causing you difficulty in losing weight. Women approaching perimenopause and the menopause find it particularly difficult to lose weight due to fluctuations and decreases in levels of oestrogen. Additionally, men over a certain age experience declines in testosterone levels which is linked to loss of muscle mass, leading to a lower metabolism and weight gain. Hormonal changes are among the most powerful yet often overlooked factors affecting weight management, and they can make weight loss feel nearly impossible even when you're doing everything "right" in terms of diet and exercise.

Luckily, there are avenues to take to alleviate these problems here at Bodyline, including medical weight loss treatments and bespoke hormone replacement therapy to regulate hormone levels and allow for effective weight loss at this stage. Our M Plan for menopause treatment provides comprehensive hormone replacement therapy tailored to individual needs, addressing not just weight concerns but the full spectrum of menopausal symptoms including hot flashes, night sweats, mood changes, and sleep disturbances. Similarly, our testosterone replacement therapy for men can help restore hormonal balance, supporting both weight loss efforts and overall vitality.

For women, the hormonal changes during perimenopause and menopause create a perfect storm for weight gain. Declining oestrogen levels affect how and where the body stores fat, with more fat being deposited around the abdomen rather than the hips and thighs. This shift to central obesity is not just cosmetically concerning – it's also associated with increased health risks including cardiovascular disease and type 2 diabetes. Oestrogen also affects insulin sensitivity, and as levels decline, the body becomes less efficient at processing carbohydrates, making it easier to gain weight and harder to lose it. The metabolic rate naturally decreases during menopause, meaning women burn fewer calories at rest than they did in their younger years. Sleep disturbances, which are incredibly common during menopause, further compound the problem by disrupting the hormones that regulate appetite and metabolism.

For men, declining testosterone levels create similar challenges. Testosterone helps maintain muscle mass, and as levels drop, men typically experience a gradual loss of muscle tissue and a corresponding decrease in metabolic rate. This makes it easier to gain fat and harder to lose it. Low testosterone is also associated with increased abdominal fat deposition, reduced energy levels, and decreased motivation to exercise – all factors that can contribute to weight gain. Many men don't realize that their difficulty losing weight might be related to hormonal changes, assuming instead that they're simply getting older or not trying hard enough.

Thyroid hormones are another crucial factor in weight management. An underactive thyroid (hypothyroidism) slows metabolism significantly, making weight loss extremely difficult. Symptoms can include unexplained weight gain, fatigue, feeling cold, dry skin, and constipation. Many people, particularly women, struggle with undiagnosed thyroid problems that are sabotaging their weight loss efforts. At Bodyline, our comprehensive health checks can identify thyroid dysfunction and other hormonal imbalances that might be affecting your ability to lose weight, ensuring that any underlying issues are addressed as part of your treatment plan.

Insulin resistance is another hormonal issue that can make weight loss challenging. When cells become resistant to insulin's signals, the pancreas produces more insulin to compensate. These elevated insulin levels promote fat storage and make it difficult for the body to access stored fat for energy. Insulin resistance often develops gradually over years, influenced by factors including genetics, diet (particularly high intake of refined carbohydrates and sugar), lack of physical activity, and excess body fat. It's also a key feature of polycystic ovary syndrome (PCOS), a hormonal condition affecting many women of reproductive age that can make weight management particularly challenging.

Water Retention

Water retention can mask your weight loss progress and make it seem like you're not losing weight, even if you're doing everything right. Factors such as hormonal fluctuations, high sodium intake, and certain medications can contribute to water retention. This can be incredibly frustrating because you might be losing body fat but not seeing the number on the scales move, or even seeing it increase temporarily. Understanding water retention and how it affects your weight can help you avoid becoming discouraged during your weight loss journey and abandoning your efforts prematurely.

Water retention weight gain is temporary, but if you are finding this happens to you regularly you may benefit from speaking to your GP to get to the bottom of this. Causes may be down to changes in your kidneys, liver, and gut, or could be due to your contraception. For women, hormonal fluctuations throughout the menstrual cycle can cause significant water retention, particularly in the week before menstruation. It's not uncommon for women to retain several pounds of water during this time, which can completely obscure fat loss on the scales. This is why we recommend that women weigh themselves at the same point in their cycle each month for the most accurate comparison, rather than weekly weigh-ins that can show dramatic fluctuations that have nothing to do with actual fat loss or gain.

High sodium intake is another common cause of water retention. When you consume more salt than your body needs, it holds onto extra water to dilute the sodium to the right concentration in your bloodstream. This is why you might notice the scales jump up after eating salty foods like takeaways, restaurant meals, or processed snacks. The good news is that this type of water retention is temporary and will resolve once your sodium intake returns to normal levels. However, if you're consistently consuming a high-sodium diet, you may be carrying several pounds of excess water weight that's masking your fat loss progress.

Starting a new exercise routine, particularly strength training, can also cause temporary water retention. When you exercise, you create tiny tears in your muscle fibers, and your body retains fluid as part of the repair and recovery process. This is a normal and healthy response, but it can be confusing if you've just started exercising as part of your weight loss plan and the scales don't move or even go up slightly. This water retention typically settles down after a few weeks as your body adapts to your new exercise routine. Similarly, increasing your carbohydrate intake after a period of restriction can cause temporary water retention because carbohydrates are stored in muscles and the liver as glycogen, and each gram of glycogen is stored with approximately three grams of water.

Certain medications can also contribute to water retention, including some blood pressure medications, anti-inflammatory drugs, and hormonal contraceptives. If you suspect your medication might be causing water retention, speak with your GP or prescribing clinician – never stop taking prescribed medication without medical advice. At Bodyline, our experienced clinical team reviews your medication history as part of your initial assessment to identify any factors that might be affecting your weight or interfering with your weight loss efforts.

Hitting a Plateau

Weight loss plateaus are common and can be incredibly frustrating. After initial progress, you may find that your weight loss stalls, even if you're following your diet and exercise plan diligently. Plateaus occur because your body adapts to the changes, and your metabolism slows down in response. This is a normal physiological response, not a sign that you're doing something wrong or that your body is "broken." Understanding why plateaus happen and how to navigate through them is crucial for long-term weight loss success.

To overcome plateaus, it's essential to make adjustments to your diet and exercise routine, like consuming fewer calories or increasing your physical activity. If you think you've been stuck in a plateau, Bodyline's medical weight loss programmes have experienced healthcare professionals who can analyse your progress and provide strategies to help you break through them. Our nurses have seen thousands of patients through their weight loss journeys and understand the common patterns and solutions that can help you start losing weight again.

When you lose weight, your body requires fewer calories to maintain its new, lower weight. This means that the calorie deficit that was working initially may no longer be sufficient as you get lighter. For example, if you started at 200 pounds and were eating 1,500 calories per day to create a deficit, once you've lost 30 pounds and now weigh 170 pounds, your body needs fewer calories to function, so 1,500 calories might now only create a very small deficit or might even be close to your maintenance level. This is why periodic adjustments to your eating plan are necessary as you lose weight – you need to either reduce your calorie intake further or increase your activity level to continue creating a deficit.

Metabolic adaptation, sometimes called "adaptive thermogenesis," is another factor in plateaus. When you lose weight, your body doesn't just require fewer calories because it's smaller – it actually becomes more efficient at using the calories it does receive. Your body reduces its metabolic rate beyond what would be expected based on the change in body size alone. This is thought to be an evolutionary survival mechanism designed to protect against starvation. While this adaptation can make continued weight loss more challenging, it doesn't make it impossible. It just means you need to be more strategic about creating and maintaining a calorie deficit.

Psychological factors also play a role in plateaus. After the initial excitement and rapid progress of the first few weeks or months of weight loss, it's natural for motivation to wane and for small deviations from your plan to creep in. You might be less strict about portion sizes, allowing yourself more treats, or being less consistent with your exercise routine. These small changes can add up to eliminate your calorie deficit without you consciously realizing it. This is often called "diet fatigue" – the mental and emotional exhaustion that comes from prolonged restriction and the constant vigilance required to maintain weight loss behaviors.

At Bodyline, we help patients navigate plateaus through regular monitoring and adjustments to their treatment plan. This might involve changing medications, adjusting dosages, reviewing and refining nutritional strategies, or providing additional support and motivation during this challenging phase. We also help patients understand that weight loss is rarely linear – there will be periods of rapid progress, periods where the scales don't move, and even occasional temporary increases. What matters is the overall trend over time, not the day-to-day or week-to-week fluctuations. Book a consultation at Bodyline Clinic to discuss how our ongoing support can help you overcome plateaus and achieve your long-term weight loss goals.

Contact Bodyline today to find out more about our hormone replacement therapy treatments

How Medical Weight Loss Programs Could Help You

If you're struggling to lose weight on your own, Bodyline could provide the support and guidance you need. We offer a comprehensive, holistic approach to weight loss, exploring not only your diet and exercise levels but also other factors that may be hindering your progress. With prescriptions to medical weight loss treatments, supervision and personalized plans, you'll receive individualized attention and ongoing support throughout your weight loss journey. This isn't about handing you a generic meal plan and sending you on your way – it's about understanding your unique circumstances, identifying the specific barriers you're facing, and developing a tailored strategy to overcome them.

If you're finding it challenging to lose weight on a diet, seeking help from a medical weight loss treatment programme like Bodyline's could be the key to overcoming these obstacles. With their expertise and personalized approach, you'll receive the necessary guidance, support, and tools to achieve your weight loss goals successfully. Our approach combines the latest medical treatments with practical lifestyle advice, nutritional guidance, and ongoing monitoring to ensure you're making progress safely and effectively. We understand that weight loss isn't just about the number on the scales – it's about improving your overall health, boosting your confidence, and helping you feel better in your daily life.

At Bodyline, we offer a range of treatment options to suit different needs and preferences. Our oral medications, including Phentermine and Diethylpropion, are appetite suppressants that have been used successfully for decades to support weight loss. These medications work by reducing hunger and helping you feel satisfied with smaller portions, making it easier to maintain a calorie deficit without feeling constantly deprived. For patients who prefer or require injectable treatments, we offer the latest GLP-1 medications including Wegovy, Mounjaro, and Saxenda. These once-weekly or once-daily injections work by mimicking natural hormones that regulate appetite and blood sugar, leading to significant weight loss when combined with lifestyle changes.

Our medical weight loss programmes are delivered by experienced nurses and overseen by qualified doctors, ensuring you receive safe, professional care throughout your journey. We're proud to be CQC-regulated, which means our clinics meet rigorous standards for safety, effectiveness, and patient care. This regulation provides reassurance that you're receiving treatment from a legitimate, professional healthcare provider, not an unregulated online service or beauty salon offering treatments they're not qualified to provide. With over 18 years of experience and more than 100,000 patients treated, we have the expertise and track record to help you achieve your weight loss goals.

One of the key advantages of our approach is the ongoing support and monitoring you receive. Weight loss isn't a one-time event – it's a journey that requires sustained effort and regular adjustments along the way. At Bodyline, you'll have regular appointments with your nurse, who will track your progress, adjust your treatment as needed, answer your questions, and provide encouragement when you need it. This ongoing relationship with a healthcare professional who knows your history and understands your goals is invaluable for maintaining motivation and overcoming the inevitable challenges that arise during weight loss. Many of our patients tell us that this regular accountability and support is what finally helped them succeed after years of failed attempts on their own.

We also recognize that weight loss is about more than just the physical aspects – it's also about addressing the psychological and emotional factors that influence eating behaviors. Many people struggle with emotional eating, using food as a way to cope with stress, boredom, sadness, or other difficult emotions. Others have developed unhealthy patterns around food over many years that need to be identified and changed. Our nurses are trained to help patients recognize these patterns and develop healthier coping strategies that don't involve food. This psychological support, combined with the biological effects of our medications, creates a powerful foundation for sustainable weight loss.

Remember, you don't have to navigate the weight loss journey alone. Reach out to Bodyline today at 0800 995 6036 or through their online contact form to learn more about their comprehensive weight loss programs and start your journey towards a healthier, happier you. We have clinics throughout the Northwest of England, including locations in Birkenhead, Liverpool, Manchester, St Helens, Stockport, Stoke-on-Trent, and Warrington, making it convenient to access our services wherever you're located. For patients outside these areas, we also offer online consultations, allowing you to access our expertise and treatments from anywhere in the UK. Don't let another year go by struggling with your weight – take the first step today and discover how medical weight loss support could finally help you achieve the results you've been working towards.

Book a consultation at Bodyline Clinic to discuss your weight loss challenges and learn how our personalised medical weight loss programmes can help you overcome the obstacles that have been holding you back. Our friendly team is ready to answer your questions, explain your treatment options, and help you take the first step toward transforming your health and wellbeing. Whether you're struggling with stubborn weight that won't shift despite your best efforts, dealing with hormonal changes that are affecting your weight, or simply need expert guidance and support to achieve your goals, Bodyline has the experience, expertise, and treatments to help you succeed.