Redefining Hunger

January 7, 2015 Updated: March 30, 2015

What are the physical sensations you associate with hunger? For most people these sensations include stomach grumbling, headaches, light-headedness, irritability, fatigue, and inability to focus. And for many people, these uncomfortable symptoms are the undoing of all of their attempts to lose weight by eating less food. Since eating removes the symptoms, they are mistakenly believed to be hunger. People are consistently led by these symptoms to consume more calories than they require and this widespread overeating behavior has led to an epidemic of obesity and a continual rise in preventable chronic diseases. Understanding the motivation behind overeating behaviors could be a key factor in reversing these trends.

Are these sensations truly signs of hunger? Conventional wisdom, and even medical textbooks, would suggest that they are. I disagree.

In my experience treating thousands of patients and guiding them through transitioning to a high nutrient-density (Nutritarian) diet, I have observed that my patients’ perceptions of hunger change after their diets improve — feelings of hunger become less frequent, less uncomfortable, and are mainly felt in the mouth and throat (“true hunger”) rather than the head and stomach. I have documented and published these results (titled “Changing perceptions of hunger on a high nutrient density diet“) in Nutrition Journal, a peer-reviewed publication that encourages scientists and physicians to publish results that challenge current models, tenets or dogmas. My data does just that — these results argue for a complete re-evaluation of our definition of human hunger.

Key Results From This Study:

  1. “Hunger pains” were experienced less often on a high nutrient-density diet.
  2. Discomfort between meals or upon a skipped meal was experienced less often on a high nutrient-density diet.
  3. 80% of respondents reported that their experience of hunger had changed upon following a high nutrient-density diet.
  4. Irritability and decline in mood were experienced less often on a high nutrient-density diet.
  5. A high nutrient-density diet was associated with more feelings of hunger in the mouth and throat and less in the head and stomach.

Conclusion: Enhancing the micronutrient quality of the diet leads to changes in the experience of hunger and a reduction in uncomfortable symptoms associated with hunger despite a lower caloric intake.

( Jack Fiallos, CC BY 2.0)
( Jack Fiallos, CC BY 2.0)

So if stomach grumbling, headaches, and light-headedness a few hours after a meal are not really hunger, what are they? The typical Western diet is characterized by high-calorie processed foods, oils, sweeteners, and animal products and is low in phytochemicals and other micronutrients. There is evidence that such a diet, low in micronutrients and phytochemicals, results in inflammation, oxidative stress, and accumulation of toxic metabolites. When digestion is complete, the body begins to mobilize and eliminate waste products, causing uncomfortable symptoms. If we allow waste metabolites to build up by eating unhealthy foods, we will feel discomfort when the body attempts to mobilize and remove these wastes. I propose that these sensations are actually symptoms of detoxification and withdrawal from an unhealthy diet, lacking in crucial micronutrients. I call this Toxic Hunger. Scientists now know that unhealthy food has effects on the brain similar to those of addictive drugs. Healthy food does not produce withdrawal symptoms — when the body is given vegetables, fruits, beans, nuts and seeds, there is nothing to detoxify.

This is why so many diets fail. Simply restricting portions of the same disease-causing foods does not resolve the symptoms of toxic hunger. In addition to being effective for weight loss, a high-nutrient diet has now been scientifically shown to change the perception of hunger, getting people in touch with true hunger (throat hunger). The function of true hunger is to prevent the breakdown of muscle tissue for energy; true hunger is a signal that directs the body to the precise amount of calories needed to maintain a healthy weight. A Nutritarian diet, if widely adopted, could bring millions of people in touch with true hunger and stop the proliferation of obesity and preventable chronic disease.

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