MD, FACP
Internal Medicine & Obesity Medicine
20 years of medical experience
Dr. Billy Watton, MD, FACP, serves as a Senior Medical Reviewer and Expert Consultant for BeSlim.me. With over 20 years of clinical experience, he is a board-certified Internal Medicine physician with a dedicated specialization in Obesity Medicine. Dr. Watton's practice, currently based at the City International Hospital in Ho Chi Minh City, focuses on the intersection of metabolic health and chronic disease prevention. His prestigious FACP (Fellow of the American College of Physicians) distinction underscores his commitment to clinical excellence. Dr. Watton’s role is crucial in ensuring that all weight management and metabolic content on BeSlim.me is rigorously accurate, current, and adheres to the highest international medical standards.
49 medically reviewed articles
All content reviewed by Dr. Billy Watton undergoes rigorous fact-checking and verification against current medical evidence, clinical guidelines, and peer-reviewed research to ensure accuracy and reliability.
This isn't just a story; it's a raw, honest case study comparing four popular methods: the ketogenic diet (Keto), intermittent fasting (IF), GLP-1 agonists like semaglutide, and bariatric surgery. I'll take you through my struggles, the pivotal shifts, and the hard-won victories, all while focusing on what truly works long-term
Today, I want to share a deeply personal narrative—drawn from a real case study—that hits close to home for so many. It's my own story, actually, because I've been there too. I thought I was doing everything right, only to hit an invisible wall
I know the sting of that "honeymoon" phase ending. It's not just about the numbers on the scale; it's the emotional rollercoaster, the self-doubt, and the fear that all your hard work was for nothing
I've walked alongside countless individuals on their health journeys, and today, I want to share a story that's deeply personal to me. This isn't just another tale—it's drawn from my own experiences after bariatric surgery, the highs and lows I've faced, and the hard-won wisdom that pulled me through
I've walked alongside countless people on their health journeys, and I've seen the raw, unfiltered truth of what it means to struggle with weight regain. If you're reading this, maybe you've been there too—losing weight
I'm sharing my own journey today—not just as a doctor, but as someone who's walked this path myself. I've prescribed Ozempic to countless patients, but I also know the fear of what happens when you stop.
Through trial and error, I developed a 5-step action plan that's kept me steady for over 18 months now. It's not magic—it's about real effort, understanding my body, and building habits that stick.
If you're reading this, you've likely been diligently working on your weight loss journey for about three months, only to feel like progress has suddenly stalled. That frustrating moment when the scale refuses to budge
If you're reading this, chances are you've hit that frustrating wall where the scale refuses to budge, despite your best efforts. You're not alone in this—millions experience weight loss plateaus
If you've recently come off GLP-1 medications like semaglutide (found in drugs such as Ozempic or Wegovy) after achieving significant weight loss, you might be feeling a mix of excitement and anxiety about maintaining your progress
This is completely normal and doesn't mean you've failed. It's a common psychological and physiological rebound, but the good news is that with the right behavioral strategies, you can regain control and build sustainable habits
This is completely normal—it's a sign that you've invested deeply in your health journey, and now you're facing the psychological and behavioral challenges of maintaining those gains independently. In this Q&A guide
It's completely normal to feel attached to something that's helped you achieve results, and acknowledging that is the first step toward building a sustainable path forward. In this Q&A explainer, we'll dive into the psychological side of discontinuing Ozempic
If you've been using medications like Ozempic for weight management and are now worried about what happens when you stop, you're not alone. Many people experience that frustrating "rebound" effect where weight creeps back
It's a common psychological hurdle in weight management, often amplified by stress, habits, or even hormonal shifts. The good news is that understanding it through tools like the Food Noise Questionnaire can be a powerful first step toward quieting the chatter and reclaiming control
This is completely normal, and it's not a sign of weakness—it's your brain and body responding in predictable ways. In this Q&A explainer, we'll dive into why dieting can amplify this 'food noise,' unpack the science behind it, and equip you with practical strategies to quiet it down
If you're here, you're likely navigating the ups and downs of weight management with medications like Wegovy, and you're worried about that persistent "food noise"—those constant thoughts about food that can feel overwhelming.
If you're navigating the world of GLP-1 medications like semaglutide or tirzepatide for weight management, you might be experiencing some unexpected psychological twists along the way
If you're here, you're likely grappling with that relentless mental chatter about food—those constant thoughts, cravings, and distractions that make healthy eating feel like an uphill battle. You're not alone in this struggle
If you've ever found yourself constantly thinking about food—those nagging thoughts that pop up uninvited, making it hard to focus on anything else—you're not alone.
If you've ever found yourself staring into the fridge, wondering if that nagging urge to eat is real hunger or just your mind playing tricks, you're not alone. This confusion—often called "food noise"
If you've ever felt like your mind is constantly buzzing with thoughts about food—cravings that won't quit, mental debates over what to eat next, or an overwhelming urge to snack even when you're not hungry
It's made by dissolving Himalayan pink salt in water until it's saturated—hence the name "sole," from the Latin for "sun," but honestly, it just looks like salty pink lemonade without the fun.
Today, we're diving into a 2026 medical review-style debunk of five common myths. I'll keep it fun, factual, and super practical, because who has time for complicated diets? We'll bust these myths
This 4-week plan is all about building sustainable habits: we'll start with a rock-solid 7-day meal prep blueprint that you can repeat and tweak over the four weeks. Think of it like a fun cooking adventure where we mix things up each week
In this guide, we'll dive deep into the science, bust some myths, and give you a practical plan to get started. Spoiler alert: it's not an either-or situation, but one does take the crown for weight loss. Let's get motivated and move safely toward your goals!
It's frustrating, right? But don't toss in the towel just yet. In this 2025-2026 guide, we'll dive into the science-backed reasons why exercising might not be translating to weight loss, and I'll arm you with practical, safe strategies to turn things around
Visceral fat isn't just about aesthetics; it's linked to serious health risks like heart disease, diabetes, and metabolic issues. But here's the good news: science shows that the #1 most effective exercise for targeting and reducing visceral fat
Today, we're diving into why lifting weights isn't just an add-on—it's essential for sustainable weight loss. This guide is all about the Muscle Preservation Protocol: using resistance training to build and maintain muscle while shedding fat.
Drawing from the latest 2026 meta-analysis insights, this guide will break down the principles, deliver a safe 30-minute workout routine, and equip you with progression tips.
This guide evaluates the top five calorie counter apps projected for 2026, based on current trends, user feedback, and emerging features like AI-driven personalization and integration with wearables.
Calculating a calorie deficit is a foundational approach to weight loss, rooted in the principle of consuming fewer calories than your body expends. Implement it effectively, drawing on clinical evidence for sustainable results.
Calories In, Calories Out (CICO) is a foundational approach to weight loss, emphasizing that weight change results from the balance between calories consumed and calories expended.
This guide focuses on the method of breaking a fast safely, providing a structured approach rooted in clinical evidence. We'll analyze the pros and cons, outline a phased implementation roadmap, highlight pitfalls, and deliver actionable tips.
In this guide, we'll compare three popular IF plans—16:8, 5:2, and Alternate-Day Fasting (ADF)—analyzing their pros and cons, helping you select the best fit, and providing a step-by-step implementation plan
I specialize in dissecting diet strategies like Alternate-Day Fasting (ADF) with a clinical lens. ADF involves alternating between days of normal eating and days of severe calorie restriction—typically consuming 500-600 calories or less on fasting days
While it's gained popularity for its simplicity and potential benefits, beginners often stumble into pitfalls that derail progress. I'll break down the top 10 mistakes, backed by clinical evidence, and provide fixes.
This guide is designed specifically for beginners, providing a gentle 1-week ramp-up to help you ease into IF without overwhelming your body.
The 16:8 method—fasting for 16 hours and eating within an 8-hour window—is a popular IF approach backed by clinical research for its potential in weight management and metabolic health.
If you've been feeling frustrated with diets that don't stick or wondering why your metabolism seems stuck in neutral, you're not alone. I've been there too, and that's why I'm excited to share this guide on Akkermansia—a remarkable gut bacterium that's gaining attention for its potential in weight loss.
If you've ever wondered why some diets seem to work effortlessly while others fall flat, the answer might lie in the signals your gut bacteria send to your body. We'll explore how short-chain fatty acids (SCFAs), produced by these microbes, influence metabolism and weight.
If you've ever felt unexplained fatigue, digestive issues, or even mood swings, it might trace back to an imbalance in your gut microbiome—a condition known as gut dysbiosis. I've dedicated my career to exploring these connections
You might think of fat as just stored energy or something to eliminate, but it's far more complex and vital. We'll explore adipose tissue—what it truly is and why it's a critical endocrine organ that influences your overall health.
You've been diligent with your diet and exercise, but suddenly, the scale stops moving. This is often due to adaptive thermogenesis—a natural response from your body that's trying to protect you
If you've ever felt like your body is fighting back against your diet, you're not alone—metabolic adaptation might be at play. We'll explore whether this process truly delays weight loss, backed by the latest evidence as of 2026
The story of "The Biggest Loser" contestants resonates deeply with me—it's a stark reminder that rapid weight loss isn't always sustainable. We'll explore the landmark study from the show and its revelations about metabolic adaptation.
If you're investigating ways to optimize your metabolic health without the yo-yo effect, this review will provide the evidence-based insights you need.
I remember my own struggles with hitting that dreaded plateau—pouring in the effort, only to see the scale stall. It's disheartening, but understanding metabolic adaptation can be a game-changer.
I'll guide you through the science of energy balance, emphasizing why 'calories out' encompasses far more than just hitting the gym. My goal is to empower you with knowledge that makes your wellness journey more effective and less frustrating.