For many, the journey toward health feels like a cycle of quiet shame. We are told to ‘eat less and move more,’ and when the weight inevitably returns after months of white-knuckled deprivation, we point the finger at our own perceived lack of willpower. Yet, the data suggests a different story – one where the failure isn’t yours, but rather a systemic flaw in the advice itself. Traditional calorie restriction is rarely effective for long-term weight loss.
In other areas of medicine, a treatment with a high failure rate would be deemed ineffective and discarded. With traditional weight loss, however, the responsibility for failure is often placed on the patient. This discrepancy highlights a need to shift focus from individual willpower to the biological mechanisms involved. Weight gain is not a simple issue of character, but a complex, multifaceted response to one’s environment and internal hunger signals.
Truth #1: The Calorie Counting Delusion and the “Three Ws”
The common understanding of weight loss is like explaining why the Titanic sank. The immediate answer is that it hits an iceberg. While factually correct, this explanation is functionally useless for preventing future disasters because it only addresses the most superficial cause.
Similarly, focusing only on calories is a superficial approach. While the concept of energy balance is true, the advice to simply ‘eat fewer calories’ is akin to telling sailors to ‘avoid icebergs.’ It identifies the final event but does not provide a practical strategy for prevention. It is correct, but not helpful.
To find a lasting solution, a deeper level of inquiry is required, often illustrated by the “Three Ws” (Why, Why, Why). This method pushes past superficial answers to find the root cause. Consider a child asking why they must go to school:
- Why? To learn. (Superficial level)
- Why? To get a better job. (Intermediate level)
- Why? To earn money and find happiness. (Root cause level)
When we apply this to weight, the first level is: ‘Why am I gaining weight?’ (Calories). The second level is: ‘Why are my calories high?’ (Hunger). The third and most vital level is: ‘Why am I hungry?’ (Hormones and Environment). If you only address the first ‘Why’ by cutting calories, you ensure a lifetime of fighting your own biology.
Truth #2: Your Body Fat Thermostat is Set by Hormones, Not Willpower
Your body does not leave its energy stores to chance. It utilizes a ‘Body Fat Thermostat’—a homeostatic mechanism that regulates fat levels as precisely as it regulates body temperature or hydration. In the natural world, animals do not become morbidly obese because their bodies possess biological ‘brakes’ that extinguish appetite when energy stores are sufficient.
This thermostat is controlled by a hormonal symphony, primarily led by insulin and cortisol. When these hormones are chronically elevated, they ‘turn up’ the thermostat, forcing the body to defend a higher weight.
When this thermostat’s set point is raised, the body actively works to reach it. First, it triggers powerful hunger signals to increase energy intake. If calorie consumption doesn’t rise accordingly, the body compensates by reducing its metabolic rate—slowing energy expenditure to ensure the new, higher weight is still achieved and maintained.
A powerful illustration that weight is about hormones rather than calories is found in sleep. Chronic sleep deprivation is a primary driver of weight gain, yet sleep itself contains zero calories. Instead, a lack of rest spikes cortisol, resetting the body fat thermostat to a higher level. This triggers the body to demand more fuel and conserve energy, leading to weight gain.
Truth #3: The Three Faces of Hunger (And the Hormones That Silence Them)
To crack the Hunger Code, we must recognize that ‘hunger’ is not a monolithic signal. It is a multifaceted experience divided into three categories:
- Homeostatic Hunger: The true biological need for energy, regulated by the thermostat.
- Hedonic Hunger: Eating for reward or pleasure, driven by dopamine spikes in the brain’s reward centers.
- Conditioned Hunger: Learned habits, such as the automatic desire for snacks when sitting in front of the television.
Ultra-processed foods are engineered to maximize hedonic hunger while systematically bypassing our natural satiety hormones. Natural foods trigger the release of GLP-1, peptide Y, cholecystokinin (CCK), and GIP – hormonal signals that tell the brain the ‘tank is full.’ By stripping away fibre and protein, food manufacturers create products that provide infinite reward with zero biological ‘off-switch.’ In this environment, food addiction is not a metaphor but a physiological reality of processing.
Truth #4: “Naked Carbs” and the Danger of Absorption Speed
In metabolic science, how much you eat is often less important than how fast it hits your bloodstream. Refined carbohydrates consumed in isolation—’Naked Carbs’—are absorbed with a speed that the body interprets as a metabolic emergency.
This ‘quick hit’ of glucose is physiologically analogous to the delivery of addictive drugs. Nicotine is more addictive when smoked than when chewed because the pulmonary route delivers it to the brain instantly. Similarly, ‘naked’ white bread or sugar creates a massive, rapid insulin spike. This force-feeds calories into fat cells, leaving the bloodstream depleted of energy and the individual ravenous just ninety minutes later.
To reclaim control, we must look to the sequence of our meals. By adopting the practice of ‘food ordering’ – consuming fibre-rich vegetables and proteins before carbohydrates – we create a physical buffer in the stomach. This simple shift slows glucose absorption, lowering the subsequent insulin response by 20–30% without requiring the person to eat a single fewer calorie.
Truth #5: Weight Loss is a Team Sport Driven by Social Modelling
Obesity is often treated as an individual struggle, yet it functions largely as a collective phenomenon. When people move from an environment with low obesity rates to one where it is common, their own risk tends to rise to match the new population over generations. This indicates that environment, not just genetics, plays a decisive role.
This influence is powerfully demonstrated within social circles. An individual’s health behaviours are heavily shaped by what is normalized in their community through a process known as social modelling. If a community’s norms include constant snacking and a diet of ultra-processed foods, its members are far more likely to adopt those habits. The focus, therefore, should not be on the food itself, but on the eating behaviours that a social environment creates and reinforces.
This principle suggests that a more effective approach is to change the environment rather than to simply increase individual effort. By creating or joining a community that normalizes healthy habits—such as prioritizing whole foods and structured meal times—these behaviours can become automatic and sustainable, rather than a constant test of willpower.
Conclusion: From Deprivation to Design
Sustainable health requires a radical departure from the deprivation mindset. We must stop asking, ‘How many calories can I cut today?’ and begin asking, ‘How can I design my environment to work with my body instead of against it?’
When we prioritize natural foods, respect the speed of absorption, and seek out supportive communities, we stop fighting a losing battle. We begin the work of resetting the system from the inside out.
As you move through your day, consider this: If your weight has remained stubborn despite your best efforts, what external factors are currently setting your Body Fat Thermostat? Is it the ‘Naked Carbs’ in your pantry, or perhaps the social modelling of your immediate circle? The answer to your health may not be in the calories you count, but in the code you live by.
The key source of the above information is from https://youtu.be/aeglBJP4jNY?list=TLGGtYutZgwVrxwwOTAyMjAyNg (Dr. Jason Fung challenges the conventional ‘calories in, calories out’ model of weight loss)