I had already noted that some of us are obviously carnivores (meat-eating), while others are more vegetarian. I didn’t have any other explanation other than “it seems to be hereditary”.
While I was studying the issue of cancer and its possible relationship with diabetes, I discovered the work of Dr. William Donald Kelley. Dr. Kelley was a very sought after dentist in the 1980’s for his work in treating cancer.

Dr.WilliamKelly
It is said that he treated more than 20,000 cases of cancer with his proteolytic enzyme therapy (enzymes that absorb proteins). I also studied the investigative path of Dr. Nicholas Gonzalez from New York who still continues offering and perfecting the cancer treatments that Dr. Kelley originally started.
What the doctors discovered in their respective anti-cancer practices was that there are several different types of metabolisms, which is determined based on the type of nervous system that a person has. They also realized that there is no “ideal” or “perfect” diet for human beings. There are ethnic groups where vegetarianism is the norm and other groups where eating meat is more common. This made me understand that even among those who eat “everything” there are differences in our metabolisms that determine which foods are going to help our bodies and which ones are not. When it comes to improving your metabolism, it’s important to know which types of foods you should eat more of in your diet. In order to find out, you have to figure out which way your metabolism leans toward: eating meat or being more of a vegetarian.
We’ve had clues all throughout history that not all diets work the same way for everyone. For example, in the 1960’s, the spiritual leader of Tibetan Buddhism, the Dalai Lama,

Dalai Lama
was very impressed with a strict vegetarian diet that came from India, so he decided to became a strict vegetarian. Two years later, he became very sick with hepatitis (a viral infection in the liver that can be deadly.) , and after trying various treatments that didn’t work, his doctor recommended that he start eating meat again. The Dalai Lama recovered from the sickness and became well again. For some reason, a strict vegetarian diet had lowered his body’s defense system and he got sick. As soon as he started eating meat again, he began feeling better and his viral infection went away. He gained back his health and the energy he had lost. Today the Dalai Lama continues eating meat as part of his diet.
The ethnic group of Tibetan Buddhists was never a group of strict vegetarians. It is very difficult to grow vegetables and grains in the rocky and arid mountains of the Himalayas. However, there are ethnic groups in India in which vegetarianism is the norm and the people get sick or weak when they eat meat. Without a doubt, all human bodies are different.
I’m going to explain a little bit more about the way our nervous system works in order to give you a better understanding of the subject and also so that you can take advantage of the new information to improve your own metabolism and health. I’ll try to explain the information in the most straight-forward and simple way as possible.
All of your organ’s functions (brain, heart, lungs, etc.) and glands (thyroid, pancreas, and muscles) are controlled by the autonomic nervous system (Autonomic: refers to the part of the nervous system that functions involuntarily (without thinking) like your breathing, heartbeat, digestion, etc. ). The autonomic nervous system is made up of nerves that can be considered your body’s control cables or like the electrical wiring of a building. Even though the majority of the nerve impulses that control the body’s functions happen unconsciously (without thinking or having to decide), some of the body’s processes, like breathing, work with our conscious mind and can be affected by decisions and thoughts. The autonomic nervous system affects heart rate, digestion, breathing rate, salivation, sweating, pupil dilation, urination, bowel movements, and even sexual arousal.

Is your nervous system too excited or too passive?
With the treatment for cancer that doctor’s Kelly and Gonzalez were using, it was discovered that some of us have nervous systems that are predominantly “sympathetic”, or EXCITED. Others have nervous systems that are predominantly “parasympathetic”, or PASSIVE. Those of us who have EXCITED nervous systems need certain kinds of foods to calm the nervous system down (vegetables, salads, and lightweight proteins like yogurt) and those who have PASSIVE nervous systems need to eat foods that excite their nervous system like red meat and solid proteins such as cheese, along with a greater amount of fat. The ideal state for all of us is to have a state of BALANCE between the EXCITED nervous system and PASSIVE nervous system.
There are also different degrees of excitement and passiveness. This is why there are people with EXCITED nervous systems who always seem to be energetic and find it almost impossible to sit quietly (I’m reminded of my wife, who simply can’t sit still!). There are others, like myself, who seem to be “thinkers” with PASSIVE nervous systems and who find it more difficult to be physically active.
Every one of us should find out if our nervous system leans toward being EXCITED or PASSIVE so that we can find the right BALANCE and reach the optimal point in which our metabolism and health benefit the most.
What I’ve seen with the EXCITED and PASSIVE nervous systems is that the metabolism reacts differently depending on the state of activity or inactivity of the nervous system. For example, nothing is more powerful in the human body than hormones, and a large amount of hormones are produced in response to the impulses of the nervous system. People who generally have EXCITED nervous systems will produce much more of the stress hormones adrenaline and cortisol. Adrenaline, a stress-related hormone, causes the body to have high glucose levels (blood sugar) because it tells the liver to turn a large amount of its glycogen (a type of glucose stored in the liver) into glucose. As we saw in the previous chapters, high glucose levels turn into fat with the help of the hormone insulin.
As explained in the chapter “STRESS MAKES YOU GAIN WEIGHT” of my book The Power of Your Metabolism, the other stress-related hormone, cortisol, increases your blood sugar levels and causes the accumulation of fat, especially in the abdomen.
People who have PASSIVE nervous systems produce a greater amount of the neurotransmitter serotonin, which has a calming effect. Individuals with a PASSIVE nervous system will also be much more prone to weight gain due to the fact that their system is in a state of “rest”. They are the people with “slow metabolisms”, which makes it harder for them to lose weight and easier for them to gain weight because they have PASSIVE nervous systems that promote very little movement.
Simply put, we could say that in general there are two types of people: 1) Those who have EXCITED nervous systems who need diets rich in vegetables and salads with small amounts of low-fat proteins that are easy to digest and 2) the other type of nervous system that I call the PASSIVE system that requires more concentrated proteins that are denser (meats, cheeses, eggs) and can tolerate a greater amount of fat because they are stimulating foods.
I have already noticed that my wife and I seem to have very different bodies and metabolisms. She can slim down by eating a diet full of salads and vegetables, while I find it impossible to lose weight if I don’t eat enough meat. In fact, the times I’ve tried being a vegetarian I’ve always felt weak and have gotten sick with at least a cold. On the other hand, my wife gets sick and has indigestion when she eats red meat and pork, which is high in fat.
Theoretically there should be a part of the population that has these two nervous systems completely balanced. I would go on to say that it is very likely that the people who have a balance between the EXCITED and PASSIVE nervous systems aren’t obese or diabetic. Sicknesses and problems with the metabolism seem to be caused in part from having a nervous system that is too EXCITED or too PASSIVE. In other words, they seem to be extremes that cause us harm, just like many other extremes in our lives.
The nervous system controls all of the glands that produce hormones (thyroid, pancreas, ovaries, testicles, adrenal, etc.). The hormones in turn control the body’s energy production. The issues we have with our metabolisms and our health are often caused by our hormones, so it makes sense that if our nervous system is too excited or too passive we could also have hormonal problems or problems with our metabolism. For example, we know that excessive stress causes a nervous reaction that makes our adrenal glands produce excess cortisol. We also know that diabetics have problems with the production of the hormone insulin that is produced in the pancreas. Numerous experts have confirmed that type II diabetes (not dependent on insulin), which makes up 90% of the population who is diabetic, is caused by severe conditions of stress (loss of loved ones, accidents, marital issues, problems with work, etc.). This obviously has an effect on the nervous system.
At their conferences on cancer and the types of diets that produce the best results for patients with cancer, Doctors William Kelly and Nicholas Gonzalez explain the characteristics of each of the two nervous systems, which I have decided to call EXCITED and PASSIVE for purposes of simplification.
You shouldn’t confuse having an EXCITED or a PASSIVE nervous system with having a “slow metabolism” or a “fast metabolism”. Here we are referring to the NERVOUS SYSTEM and what you want to find out is what your dominant NERVOUS SYSTEM type is. Given that your nervous system delivers the signals that control your glands which turn around and produce hormones that control your bodily processes and energy, it is obvious that the state of your nervous system is going to have an influence on your metabolism.
An EXCITED nervous system forces your body to produce an excess of the stimulating and stress producing hormones adrenaline and cortisol, which inevitably have an effect on the metabolism. A PASSIVE nervous system, on the other hand, causes the production of calming substances like serotonin while producing less amounts of the hormones in the thyroid that control energy production and the metabolism. This is why the PASSIVE nervous system increases the possibilities of having hypothyroidism and a “slow metabolism.
The “slow metabolism” and conditions like hypothyroidism are much more common in people with PASSIVE nervous systems. First of all, both the EXCITED and PASSIVE nervous systems can cause obesity because they are extreme conditions in which there isn’t a BALANCE. This creates a hormonal imbalance.
RESULTS OF AN EXCITED NERVOUS SYSTEM:
EXCITED NERVOUSSYSTEM= EXCESSIVE HORMONAL STIMULATION THAT CAUSES STRESS AND PRODUCES CORTISOL= CORTISOL
BUILDS FAT= OBESITY
RESULTS OF A PASSIVE NERVOUS SYSTEM
PASSIVE NERVOUS SYSTEM= VERY LITTLE HORMONAL STIMULATION THAT CAUSES A LACK OF ENERGY=BODY STORES ENERGY IN THE FORM
OF FAT=OBESITY

The advantage of knowing if your body leans more toward being EXCITED or PASSIVE is that it will allow you to adapt the 2×1 or 3x1Diets© according to your body type. It will also help you feel more energetic while you slim down, controlling your diabetes and improving your health. To my understanding, and based on what I’ve seen with many people, carefully choosing foods based on your type of nervous system will help you achieve your goals much faster.
Note that the 2×1 and 3×1 Diets© teach you how to correctly portion your food on your plate according to the different food types: Type “S” (slimming foods) and Type“F” (fattening foods). There are also different types of alternatives to each of the two types of foods.
Take a look at the following characteristics of the two types of nervous systems and you should be able to determine which way your body leans toward, EXCITED or PASSIVE. This can be very important because finding out which way your body leans toward can help you choose which foods are best for your body and your type of nervous system, taking into account that your body isn’t like everybody else’s.
To find out which way your nervous system leans toward, take a look at the following tables:
Excited:
Leans toward being physically active
Weak or delicate digestive system
Eating late at night causes an upset stomach and indigestion
Dislike for salt or salty foods
Body does not tolerate saturated fats
Passive:
Leans toward being physically inactive
Easily digests most foods
Can eat at any time of the day without indigestion
Likes salt and salty foods
Body can tolerate saturated fats
Knowing which type of nervous system you have can also help you have a better understanding of the way your hormones function in your body. This will help you control your hormonal conditions like diabetes or hypothyroidism. You’ll also find out how important it is for you to control your stress levels.
Excited:
High levels of adrenaline
Pancreas produces little insulin
Tendency toward hypothyroidism
Passive:
High levels of serotonin
Pancreas produces a lot of insulin
Tendency toward hyperthyroidism
There are also other characteristics that distinguish these two types of nervous systems:
OTHER BODY-RELATED CHARACTERISTICS:
Excited:
Blood Supply concentrated in the muscles and brain (body ready to fight or flight)
Fast pulse
More acid in the blood
Fast heartbeat
Dilated pupils
Have sweaty palms
Passive:
Blood supply concentrated in the skin and digestive system (body ready to rest or digest)
Slow pulse
Blood is more alkaline
Slow heartbeat
Non dilated pupils
Doesn’t have sweaty palms
When we talk about a “tendency” we are talking about learning toward a certain state. However, “tendency” only means that it is very probable that something will happen. “Tendencies” don’t represent 100% of the time and therefore can vary given that peoples’ personalities and health are more influential than the “tendency” caused by a certain type of metabolism.
PHYSICAL TENDENCIES
Excited:
Muscular build
Athletic
Has allergies
Constipation
Strong heart
Acid reflux
Insomnia
Passive:
Excess fat
Sedentary
No allergies
Regular bowel movements
Irregular heartbeat
No acid reflux
The same goes for “BEHAVIORAL TENDENCIES”, they aren’t true 100% of the time but can be indicators of the type of nervous system that is dominant in your body.
BEHAVIORAL TENDENCIES
Excited:
Easily irritated, demanding, impatient
Enjoy physical activities
High sex drive (high testosterone levels)
Passive:
Calm, controlled, tolerant
Enjoy activities that require little physical activity
Low sex drive (low testosterone levels)
The implementation of the 2×1 or 3×1 Diet© will work better for you if you take these factors into account and choose your Type S (slimming) and Type F (fattening) foods according to your type of nervous system. So, with the 2×1 or 3×1 Diet©, you would determine the portions that you would eat of the Type S and Type F foods. Then, depending on the type of nervous system you have, you could determine which types of foods would be the best to eat as Type S food and which ones would be among the Type F foods.

2 X 1 Diet
For example, if you have an EXCITED nervous system, you would know that it is important to eat a lot of vegetables and salads (they have a calming effect). You could also include light-weight proteins like chicken, turkey, and white fish (better than salmon because it is high in fat) in the Type “S” category. Those who have EXCITED nervous systems tend to have more acid in their bodies and really benefit from drinking a lot of water and from taking nutritional supplements that have a calming and alkaline effect (opposite of acidic) like potassium and magnesium. Given that those who have EXCITED metabolisms tend to have issues with digestion, you may need to take a digestive enzyme to help you adequately digest proteins and fats.
If your nervous system happens to be PASSIVE, you can eat more of the foods that contain oils and fats if you make sure not to eat too much of the Type “F” foods that force your body to produce more insulin. Insulin is the hormone that turns glucose into fat and allows the fat that you eat to combine with the rest of the fat in your body. Those who have PASSIVE nervous systems tend to be more alkaline (not acidic) and therefore foods that are more acidic like meats and fats help boost or speed up their metabolisms.
These are the basic diet recommendations for the 2×1 and 3×1 Diets© according to the type of nervous system:
EXCITED DIET RECOMMENDATIONS:
Vegetarian-like diet
Moderate consumption of low-fat white proteins: chicken, turkey, and fish
Small portions of fish that are low-fat Eggs
Low-fat and low-sugar yogurt
Diet based on mainly vegetables and salads
Drink little or no stimulants like coffee
Diet low in refined carbohydrates
PASSIVE DIET RECOMMENDATIONS:
Meat diet
Red meats, pork, and fish that is high in fat like salmon
Larger portions of fish
Eggs
Yogurt low in sugar and carbohydrates
Diet of vegetables and salads combined with meat and seafood
Could benefit from drinking moderate amounts of coffee
Diet low in refined carbohydrates
Take note that stimulating substances like coffee, sugar, and nicotine are especially harmful for people who have EXCITED nervous systems because they cause more stimulation, which is not what this type of person needs. When you have an EXCITED nervous system, stimulants (coffee, chocolate, sugar, candy, nicotine, etc.) cause damage to your hormonal system and end up harming your metabolism and health. For example, my wife Elizabeth has an EXCITED nervous system, and she found that she gains weight when she drinks coffee and that she slims down when she eliminates coffee from her diet.
There is always the possibility that you’ll discover that your nervous system isn’t predominantly EXCITED or PASSIVE, rather more BALANCED. This would be good news because the more balanced your metabolism is, the easier it will be to achieve your goals.
“ATTENTION DEFICIT” AND “HYPERACTIVITY”
Unfortunately, many children are diagnosed with the common mental illnesses, “Attention Deficit Disorder” or “Hyperactivity”. These supposed mental illnesses are based on opinions and are not supported by any reliable scientific proof (laboratory analysis, radiographs, electrocardiographs, etc.). You should also know that the theory about “chemical imbalances in the brain” that the promoters of these illnesses talk about has never been proven. I’m afraid that the victims of these psychiatric diagnoses are often children who have EXCITED nervous systems as a result of heredity and that their parents unknowingly allow them to eat diets full of stimulating substances like sugar and candy. In some cases these children are given soft drinks (Coca Cola®, Sprite®, etc.), which are really like “liquid sugar” since just one of these drinks contains 3 tablespoons of sugar. It’s sad that we’ve ended up drugging our children with psychotropic drugs like Ritalin®, Adderall®, Concerta® and various others. They are just as bad as drugs like cocaine, and all because of not knowing which types of foods calm down their EXCITED nervous systems.
When an adult or child’s nervous system is too EXCITED they cannot pay attention because their bodies are in a state of complete nervous chaos. If you have children with this problem please check their diet and the other factors that can cause an EXCITED nervous system such as: yeast infections (Candida albicans–candidiasis), intolerance for gluten (the protein in flour, bread, pizza), allergies to colorants or preservatives, heavy metal poisoning, hormonal problems, a diet high in sugar or other medical, nutritional, or environmental causes that could be hidden from a diagnosis that isn’t based on proven scientific tests like “Attention Deficit Disorder” or “Hyperactivity”. You can get more information about the possible causes of behavioral or learning problems on Dr. Mary Ann Block’s website, www.blockcenter.com. You can also learn more about parent’s rights at www.cchrint.org.
Overall, the most important thing for you to do is take note of the results of the decisions you make about your food and lifestyle so that you can make sure you are making the best decisions about your health and metabolism. All of the knowledge in this my book is aimed at finding positive results. If you find that you’re getting positive results and then notice that your progress stops, simply change and go back to what you were originally doing. The most important thing in the process of recovering or improving your health, energy, and metabolism is taking note of the results to determine what works best for you. We are all different!