Reasons For Sugar Addiction Explained By Dr. Robert H. Lustig

What are the reasons for sugar addictionI remember, a few years ago, how I was addicted to coke and soda….it took me several months serious effort to overcome that habit.

You could be one of those persons who earnestly desires and tries hard to cut back on sugar or junk foods, but you find it extremely difficult and impossible to succeed.  If it is so….you are a sugar or junk food addict.

Here is a video presentation that explains the nitty-gritty of sugar or junk foods addition quite straightforward and easily understandable manner.

Dr. Robert H. Lustig’s Explanations On Sugar Addiction


Dr. Robert H. Lustig says,  “No one can exert cognitive inhibition, willpower, over a biochemical drive that goes on every minute, of every day, of every year.” [1]

The sugar addiction is a serious problem….the healthiness of the body is at risk.[2]

It appears as though one’s brain has lost its control and ceased to function to resist the sweetened foods just like other addictions like drugs or alcohols.

Our brain is naturally tuned and programmed to control the amount of food that we need to eat. It also decides when to stop the feeling of hunger at the very moment when we have the food.

We have an exquisite and sensitive system called Leptin that modulates the total amount of food we need to eat.

But the modern food habits (foods with lots of calories, sugar, fat, etc.) have weakened the natural chemical mechanism that exists in our body.  

Gradually the brain becomes unresponsive in controlling the intake of certain foods like sugar, junk foods, soda, etc.  Of course…there are definite reasons for this.

The first reason is the leptin that supposed to send the ‘starvation signal’ to the brain becomes ineffective over a period.

Secondly, Dr.Elissa and Dr.Robert H. Lustig explains how some of us become addicted to junk foods and sugar as brain chemistry got altered to accommodate the pleasure we derive from certain foods.

Dr.Robert says that addiction is the results of reward centers (Nucleus Accumbens) in the brain being over stimulated by particular taste or intoxication.

Dopamine is a neurotransmitter that functions at the reward center of the brain.  Dopamine conveys the feeling of hunger and pleasure to our senses. As we desire to attain more satisfaction and pleasure from certain foods, the dopamine activism is increased to suit our craving.

For example, if we keep on having sweetened food regularly for a couple of weeks, the dopamine gets stimulated, and it forms a habit to down-regulate that particular food or an intoxicating substance.

Dr.Lissa says that brains of obese people have been altered to respond differently to different food. When a certain palatable food is regularly consumed, the rewards center of the brain develops kind of urge to have such taste again.  It leads to overeating habit in people, especially with certain food’s tastes that they like and crave for.

It is a bio-chemical drive that happens at reward centers of the brain.

Causes For Sugar And Junk Food Addiction

Sugar is one of the foods that can give a lot of stimulation to dopamine in the reward center; this leads to down-regulate the consumption of sugar. For this reason, some of us develop insatiable urge to have sweetened foods always. This is same with junk foods too.

Over consumption of sugar is the main cause for most of the obesity issues in people.[3]

As we have discussed earlier, sugar is one of the foods that can become an addiction very quickly.

As more sugar is consumed, the dopamine release increases and down-regulation of sweetened foods sets in. Means…brain stops regulating the amount of sugar intake.

Over a period, the impact becomes greater… More amount of same food is required to be eaten to achieve the same level of reward given to the lesser amount of food earlier. 

All substances abuses like nicotine, alcohol and drugs addiction also have the same addiction process as this.

Junk foods and sugar become an addiction of different type.

The food addiction becomes severe and uncontrollable if Leptin resistance is also developed at the same time. 

The result of such a food addiction is massive obesity issues and diseases.

Influence Of Sugar In Altering Behavior 

The brain, over a period, readjusts its regulatory functions because the foods like the sugar we regularly eat.

When the brain stops to regulate the consumption of sugar, we develop strong addiction and habit for eating more and more sweetened foods.

Over a period, we develop an erratic eating behavior…irresistible attraction and craving for sweets.

The major aspects of the behavioral changes occur due to addiction are as follows:

  • Bingeing:- Escalation in the intake of a particular food or substance
  • Withdrawal:- State of depression and anxiety arising out of unavailability or forceful abstinence from food or substance to which the person is addicted to.
  • Craving:- Excessive desire and enhanced motivation to have the food or substance that is not available
  • Sensitization:- An addict who is sensitized to a substance, in the case of its unavailability, will navigate to another addiction that is similar to the previous one. One drug acts as a gateway to another.[4]

The only way to get out of this kind of food addiction is to begin to forcefully exercise progressive abstinence from such foods.

The person should try to achieve the total abstinence from the addiction within few weeks time.

Here substituting one food with another is not the right option.

A friend of mine, who was addicted to cigarette smoking, decided to chew a sweet candy whenever he felt the urge to smoke….. at the end, he overcame his smoking habits but became addicted to sweet candies.

Sharing is caring!

6 Comments

  1. Kantna December 17, 2016
  2. Atkins June 28, 2015
    • Lisa Hughes August 11, 2015
  3. Mike June 16, 2015
  4. Jacqui June 6, 2015
  5. Mreely May 24, 2015