An article in Japanese has been translated into English. A study of rats found that aspects of their emotional behavior associated with muricide (mouse killing) was induced by thiamine deficiency. The killer-rats did not eat the dead mouse and seemed to bite at random into any body region of their victim. They did not bite inanimate objects such as nails or chalk. The observed chemical changes in the brain were reversed to control levels with intraperitoneal administration of thiamine. More in keeping with human behavior, a review reported a sociological study of sports fans and their violent behavior. The authors stated that this is a worldwide social problem that is quite understudied. The article reviews the fragmented literature on alcohol use and violent behavior. Several medical disorders rarely cause violent behavior. When they do so it is dramatic because the violence and other bizarre behaviors are not in keeping with the premorbid picture of the individual.
Violence and Nutrition
Several controlled trials using omega-3 fatty acids, combined with micronutrients, show sizable reductions in aggressive, antisocial and violent behavior in youth and young adult prisoners. Research on the effects of hypercaloric dietary manipulations across the lifespan on emotion regulation and the neurobiological mechanisms that underpin these processes has been published. There may be early-life windows of vulnerability for developing anxiety in later life due to the augmented effects of poor diets on neuroendocrine stress systems and the maturation of neural circuitry supporting emotion regulation. A patient with dementia due to B-12 deficiency and syphilis presented to a forensic hospital after killing his ex-wife with a gun. Despite current awareness of the occurrence of aggression and violence in patients with dementia, there has not been a report discussing it secondary to an infectious or nutritional origin causing homicide or severe violent behavior . A long list of psychiatrically inclined illnesses or symptoms, especially some cases of mood disorder, dementia, paranoid psychoses and violent behavior have been documented because of vitamin B12 deficiency. Criminologists in the United Kingdom have classified the common type of crimes committed in poorer parts of cities as a disease. It has given rise to the paradox of a criminal accusing a physician that he is the cause of the crime “because you did not cure my disease”.
Impulse Control and Diet
I offer an example of criminal behavior and its association with poor nutrition from my personal experience. One day, the public defender in Cleveland called me concerning the perpetration of a poorly executed robbery committed by a young African-American who at the time of the crime was acting as a night guard of some company premises. At 8 o’clock in the morning he had entered a package store, showed his gun to the man with the cash register and received a paltry $20. He then strolled out of the store, was quickly arrested by police and confessed his crime. The public defender was puzzled because this young man came from a good family and had no history of bad behavior or criminality. He suspected some form of mental disease and put together some money to pay for any studies that I proposed to try to provide support for his contention. Without going into details, studies of his urine revealed gross abnormalities associated with biochemical changes in brain metabolism. Questioning the young man revealed that his diet was appalling, loaded with soft drinks and alcohol. He was provided with nutritional supplements, given dietary instruction and was examined a year later when the abnormalities in his urine had disappeared. He was then at a community college, studying for a future job. The public defender requested a local judge to permit him to plead temporary insanity at the time of his crime, a legal defense in the state of Ohio. The request was denied by the High Court of Ohio and the young man had to serve a jail sentence from which he could easily have emerged as a hardened criminal.
It is agreed that this example does not compare with the hideous nature of multiple school shootings and the vicarious murders that have plagued America in the last decades. It does, however, suggest poor impulse control as a potential for committing a senseless crime. In the cultural atmosphere that exists today, I can imagine a young person receiving a minor reprimand from a teacher in school. Perhaps it becomes a sore point that he nurses, even growing into hating humanity as a whole, exploding into violence because of poor impulse control. Unfortunately, each case dominates television where the young criminal becomes a central figure that may well lead to copycatting by others. There is almost always discussion on “motive”, whereas the act is probably a relatively primitive loss of impulse control. The simplest research that could be done, would be to ask a surviving school shooter about his diet and lifestyle, subjects that never seem to be a point of query. Social phobia, homicidal thoughts and suicidal ideation were discussed above.
The perpetrator of gun crime often commits suicide on completion of his crime. The report on thiamine deficient rats with muricidal behavior points to relatively important damaged brain chemistry as a source of unpredictable and otherwise incomprehensible behavior. Ingestion of alcohol and its association with violent behavior has been discussed above . The consumption of alcohol induced thiamine deficiency is well known, strongly suggesting that thiamine deficiency is the basic cause of the loss of impulse control so commonly observed in groups indulging in alcoholic binges. The effects of thiamine deficiency in brain are complex and are still poorly understood. However, together with the other members of the B complex and magnesium, it stands astride the entry of glucose into the chemical machinery that synthesizes energy. Perhaps the degree of thiamine deficiency or its patchy distribution makes a variable degree of energy deficiency in the affected cells, explaining the multitude of symptoms that can develop. That is why I have proposed that beriberi, in causing its accepted clinical manifestations, is the great imitator of many different diseases.
If it could be shown that the perpetrator of a school shooting, for example, was thiamine deficient, perhaps this hypothesis might result in a better understanding of this terrible repetitive crime. Since it has long been known that an excess of sugar can overwhelm the chemical machinery of energy metabolism, it makes the widespread ingestion of empty simple carbohydrate calories a potential culprit. It even would make sense of the Feingold diet. Food dyes are used in many simple carbohydrate items consumed by both children and adults at social gatherings and are often referred to as “goodies”. Sensory mechanisms on the tongue initiate a signal to the pleasure perceiving centers in the brain, explaining the addictive nature of sugar. It probably suggests that the use of chemical sweeteners have the same effect as sugar. When complaints were registered that Nutrasweet was responsible for migraine headaches, the Nutrasweet company did an experiment that was claimed to show that there was no connection. However, the sweetener was given to the experimental subjects in capsules that they swallowed, thus obviating the taste signal to the brain. It missed the point.
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