Why Can't I Ever Stick to a Diet?
This is a painfully familiar story for many.
You’re filled with determination to stick to your diet. The fridge is stocked with all the “right” foods, and you’ve even bought a gym membership.
The first week goes perfectly — the numbers on the scale are dropping, and you feel light and proud of yourself.
But then… IT happens.
One evening, or during a stressful afternoon, you think, “Well, one piece of chocolate won’t do any harm.” But you can’t stop until you’ve eaten the entire bar. One cookie turns into finishing every cookie in the house.
And then comes the guilt, the shame, and the promise to yourself: “That’s it! Starting tomorrow, I’ll be strict again, no more slip-ups!”
But “tomorrow” often leads to the next inevitable fall.
People often ask me what they can do to break this endless cycle once and for all.
My answer is always the same: Falling off your diet isn’t a sign of weak willpower or a character flaw. It’s a signal. A loud and clear signal that you’re doing something wrong, and your body is desperately lacking something.
If your body and mind receive everything they need, the urge to “fall off” shouldn’t arise. At least not so often and not with such devastating consequences. The problem isn’t you; it’s your approach, which is based on drastic restrictions, starvation, and self-punishment.
For most people, weight loss is associated with suffering: a categorical “no” to sweets, bread, fruit, potatoes…. All that’s left is boiled chicken breast, cucumbers, lettuce, and some buckwheat or rice.
Yes, the weight drops at first. But at what cost? Sooner or later, the body begins to fight back.
The Main Reasons for Falling Off a Diet
In my opinion, there are four main culprits:
Your Food Has Become a Tasteless Chore
Chicken breast, broccoli, rice. Again, and again. This kind of diet might provide the necessary nutrients on paper, but it robs you of one of life’s greatest pleasures: enjoying your food.
Food isn’t just fuel. It’s culture, a way to socialise, a source of comfort and joy. If your meal plan makes you feel like a hospital patient, it’s only a matter of time before your psyche demands compensation — usually in the form of intense flavours, like from chips, pizza, or cake.
The myth that healthy food is tasteless is one of the most damaging byproducts of diet culture. It forces us to choose between health and pleasure when, in reality, they can and should coexist.
What to do?
Turn your kitchen into a flavour lab!
Forget about dry chicken breast. Your goal is to cook food so delicious that you and your family won’t even notice you’re eating healthy 😊.
Here are a few ideas to get you started:
- Invest in quality spices. Smoked paprika, garlic powder, oregano, curry, cinnamon, and chilli can turn the simplest chicken breast into a culinary masterpiece.
- Learn to make healthy marinades and sauces. Use a base of lemon juice, honey, ginger, and garlic. Make sauces from yoghurt, fresh herbs, or blended vegetables. This will add juiciness and rich flavour to your meals.
- Change your cooking methods. Instead of pan-frying in a lot of oil, try baking in the oven, grilling, boiling, or stewing. Vegetables roasted in the oven with a little olive oil and spices become naturally sweet and caramelised.
- Seek inspiration. The internet is full of healthy recipe blogs; I also have over 1,200 healthy, low-calorie recipes, including pizzas and cakes. Try them and experiment with new ingredients. Maybe you’ll discover you love lentils, quinoa, or baked sweet potatoes.
When your food is balanced and genuinely enjoyable, the desire to seek comfort in unhealthy products naturally diminishes. The participants of my weight loss program confirm this.
You’re Simply Eating Too Little
Constant hunger is physical and psychological torture. If you spend your whole day with a growling stomach, thinking only about your next meal, you’re carrying a ticking time bomb.
There are essentially only two causes of hunger:
- You’re consuming too few calories (energy).
- You’re consuming enough calories, but your diet isn’t balanced — it’s lacking something, most often fibre (from vegetables and fruits) or protein (from meat, eggs, dairy, fish, and seafood).
Your body isn’t foolish. Its sole purpose is survival. When it’s starving, your metabolism slows down (to conserve energy), and it sends increasingly strong signals to your brain: “EAT! NOW! EAT ANYTHING!”.
In this mode, rational thinking shuts down. You can no longer weigh whether an apple is a better choice than chocolate. Your brain screams for quick energy, and you instinctively reach for the most calorie-dense option. Once you start, it’s nearly impossible to stop, as your body tries to compensate for the deficit built up during the diet.
Many of my clients, especially women, are shocked when they receive a balanced meal plan and say, “But I can’t possibly eat this much!” Years of dieting have taught them to ignore their body’s signals and to consider a normal portion size as overeating.
What to do?
Nourish your body and make friends with carbs and lean proteins!
Your task is to:
- Provide your body with enough energy (so it feels safe and doesn’t switch to starvation mode).
- Eat a balanced diet—give your body all the nutrients it needs.
How to do it?
It’s simple:
- Use a calorie calculator to determine how many calories you should be consuming daily. Weight loss requires a small calorie deficit (15-20% fewer kcal than you burn), not starvation.
- Eat regularly. Plan for three main meals and 1-2 healthy snacks. This will help maintain stable blood sugar levels and prevent evening binges.
- Don’t be afraid of carbohydrates. Carbs are the main source of energy for our brain and body. Cutting them out leads to fatigue, irritability, and uncontrollable cravings for sweets. The key is to choose the right ones — complex carbohydrates such as whole-grain bread, oats, buckwheat, brown rice, vegetables, and legumes. They provide lasting satiety and energy.
- Don’t forget protein and fats. Protein helps you feel full longer, while healthy fats (avocado, nuts, seeds, extra virgin olive oil) are essential for hormone balance, absorption of fat-soluble vitamins, and overall health.
A complete, balanced diet is the best defence against overeating.
Banning “Forbidden” Foods
“That’s it, starting today, I’m never eating sweets again. Ever!”
How many times have you said that to yourself?
This “all-or-nothing” thinking is the surest path to failure. In psychology, it’s called the “forbidden fruit effect”—the more you forbid yourself something, the more you think about it and crave it.
Sweets and other “treats” provide us not just with calories but with emotions. They’re associated with celebrations, comfort, and rewards. By eliminating them from your life, you create immense psychological tension. You feel deprived while others enjoy themselves. Then comes a moment when the tension becomes unbearable, and you “break,” eating not one piece of cake, but three, because “if I’m going to sin, I might as well go all in.”
This behaviour only intensifies feelings of guilt and reinforces the belief that sweets are evil and must be avoided even more strictly. And so, the vicious cycle begins anew.
What to do?
Learn to enjoy sweets smartly and guilt-free!
The key isn’t prohibition, but balance and mindfulness:
- Make healthy desserts. Today, there are thousands of recipes for delicious desserts that do not contain white sugar and white flour. Use bananas, dates, or berries for sweetness. Bake with oat or whole-grain flour. Make desserts with a base of quark or Greek yoghurt. Such treats will not only satisfy your sweet tooth but also provide your body with valuable nutrients. You can even eat them daily!
- Allow yourself your favourite treats. Adopt the 80/20 principle. 80% of the time, eat healthy and balanced meals, but dedicate the remaining 20% (or maybe 10-15% 😊) to foods that bring you pure joy, even if they aren’t “healthy.” Plan a weekly trip to a café for your favourite piece of cake. Eat it slowly, savouring every bite, without guilt. When you know that nothing is completely forbidden, the craving for these foods dramatically decreases. You control the food, not the other way around.
Superhuman Physical Exertion
Many believe that to lose weight, you have to push yourself to the absolute limit at the gym. Hours of cardio, lifting weights every day… This approach, especially when combined with a calorie deficit, is another sure path to burnout and relapse.
Excessive physical exertion depletes your body’s energy reserves. Feeling this massive energy loss, your body does everything it can to recover—it raises hunger hormone levels and creates a huge appetite. After a gruelling workout, it’s much harder to opt for a salad over a large plate of pasta or pizza. You feel like you’ve “earned” that food and often end up eating far more calories than you burned during the workout.
What to do?
Move with joy, not because you have to or to punish yourself!
Change your attitude towards exercise. It’s not a punishment for what you ate or a license to eat more. It’s a way to care for your body, make it stronger, and improve your mood.
- If you’re in a calorie deficit, your workouts don’t need to be extreme. Focus on strength training 2-3 times a week to maintain muscle mass (which is important for your metabolism) and moderate-intensity cardio (like brisk walking or cycling).
- Find what you love. If you hate running, don’t run! Perhaps you enjoy dancing, swimming, or taking long hikes in nature. Movement should bring you joy, not feel like another chore.
- Incorporate more daily activity. We burn most of our calories not in the gym, but through everyday movements. Take the stairs instead of the elevator. Park your car further from the entrance. Get off public transport one stop early. Play with your kids or take your dog for a walk. These small activities add up throughout the day and make a big difference without extra stress.
In Conclusion: The Path to Freedom
To break the cycle of falling off your diet means to end the war with your body. Instead of fighting it, start listening to it. Every time you relapse, your body is trying to tell you something: “I’m lacking energy,” “I need more protein,” “I’m bored,” or “I’m sad.”
Your job is to decipher these signals and respond to them with care. Nourish your body with delicious, wholesome food. Move it with joy. Allow yourself to enjoy life, including a piece of cake.
And most importantly, be patient and compassionate with yourself. There’s nothing wrong with you. You just need to find a new, balanced, and sustainable path—one that leads not to another diet, but to a healthy and happy life. And that path begins with the first step: the decision to stop punishing yourself and start taking care of yourself.
Eat deliciously, eat balanced, move your body, and be healthy!
Sumithran, P., et al. (2011). Long-Term Persistence of Hormonal Adaptations to Weight Loss. New England Journal of Medicine, 365(17), 1597–1604.
Fairburn, C. G. (2013). Overcoming Binge Eating: The Proven Program to Learn Why You Binge and How You Can Stop (2nd ed.). The Guilford Press.
Tribole, E., & Resch, E. (2020). Intuitive Eating: A Revolutionary Anti-Diet Approach (4th ed.). St. Martin’s Essentials.
Harrison, C. (2019). Anti-Diet: Reclaim Your Time, Money, Well-Being, and Happiness Through Intuitive Eating. Little, Brown Spark.
Solmi, F., et al. (2022). Risk factors for eating disorders: an umbrella review of published meta-analyses. Journal of Eating Disorders, 10(62).
Rossi, A., et al. (2024). Effects of Mindful Eating in Patients with Obesity and Binge Eating Disorder. Nutrients, 16(5), 852.
van Strien, T. (2018). Causes of emotional eating and matched treatment of obesity. Obesity. Curr Diab Rep 18, 35 (2018).
King, J. A., et al. (2012). Exercise, appetite and weight management: understanding the compensatory responses in eating behaviour and energy balance. Br J Sports Med. 2012 Apr;46(5):315-22.
Hackney, A. C. (2006). Stress and the neuroendocrine system: the role of exercise as a stressor and modifier of stress. Expert Review of Endocrinology & Metabolism, 1(6), 783–792.
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