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What Constitutes a Food in a Food Group


An Explanation of Why We Cannot Tolerate Some Foods
By Dr. Tish Dick-Kronenberg, ND


The following letter was written by Dr. Tish in response to the question of why certain foods are grouped together in a food intolerance category when it may not appear to make sense according to biological descriptions and/or categories. The question specified Fruit; it is the same for all foods. (You may also read about this in the November 2013 newsletter.)

hemically speaking, honey breaks down into different "sugars," as described by a chemist into simpler sugars; as does corn syrup, agave, and even milk.  The chemical names for the sugars are based upon how many carbohydrates they contain in a chain…
…The chemical elements of these complex sugars, made up of the simpler sugars, actually have nothing to do with how our enzymes react to the foods they are in.

Our digestive enzymes recognize proteins, and those proteins are tagging the molecules that come from particular foods.

The lactose in milk reacts by dairy intolerant people because of the protein related to the dairy, and not the simpler sugars that make up the lactose (which, if I can remember, is galactose and sucrose).  The same occurs with sugars which come from grapes, apples, melons, tomatoes, or a cucumber.  The sugars in these are all broken down from enzymes made from your stomach, pancreas, liver, etc.  What matters here is where these sugars come from.  A sugar from a melon will digest for a fruit intolerant person, whereas a sugar from an apple will not. 

It has to do with the protein markers on the foods which are the identifying parts of the foods for the human body.

This is really what is going wrong with the commercial, artificially produced high fructose corn sugar.  There is no identifying protein on this synthetic sugar which would trigger the pancreas and liver to recognize it as a useful food; so, instead of digesting it properly, it grabs it out of the blood stream and stores it...causing one to gain weight.

Well, I got side tracked onto high fructose corn sugar.  Back to the fruit issue.  Dr. Carroll, Dr. Harold Dick, and I all have asked the same question as all of our fruit intolerant patients ask...if the fruit category really includes all fruit.  Believe me when I say that there has been so much investigation on this that it is 100% accurate when we tell someone they must avoid the entire category of fruit.  We are not just making this up.  It has been studied and repeated hundreds of times to prove that a fruit intolerant person must avoid all berries, apples, citrus (lemon, lime, oranges), pears, plums, tropicals as in bananas, papayas, star fruit, kiwi, and the list goes on.  Not only is it the fruit of these plants, but any part of the plant as well.  This would be raspberry leaf tea.  Even the leaves of the raspberry plant are fruit.  The bark of a cherry tree is fruit.  So, you see,
it is the protein of the plant which indicates to the human body what the enzyme reaction will be.  It is not just the fact that fructose is in the raspberry, for example.  There wouldn't be any fructose in the leaves of the raspberry plant.

So, what makes a fruit a fruit? 
The complex protein of the plant which is coded in the DNA of that plant makes it what it is.

I know that the fruit intolerance is the hardest intolerance to follow.  I also know, after over 20 years of seeing patients and telling thousands of people that they are fruit intolerant, that this intolerance is the one most people fight.  We don't want to believe we can't have fruit.  “Isn’t it a ‘health food’?  How can I live without fruit?  Aren’t I missing Vitamin C?  But it tastes so good!  Can’t I just have strawberries?  I notice I don't have a stomach ache with apples, but I do with oranges, so why can't I have apples?”

I have heard this for years.  Just because a food doesn't give you a stomach ache doesn't mean it is ok for you to eat it.


A food intolerance causes toxemia and this toxemia can manifest in many ways, not just indigestion.  

It can raise blood pressure, cause headache, asthma, allergies, runny nose, brain fog, fatigue, and lead to autoimmune disease or heart disease.  Also, Vitamin C is in vegetables, even more plentiful than in fruit.  Bell peppers and broccoli have more Vitamin C than an orange does.

The moral of the story is that a fruit is a fruit, and fruit intolerant people must not eat them if they are going to be healthy and free of disease and pain.  I wish I could change this.  I cannot.  There are no magical enzymes you can take to make your body recognize the fruit and digest it.  It isn't that simple.  Our metabolisms are much more complex than that.  This is why lactaid doesn't work for lactose intolerant (dairy intolerant) people.  There is more to digesting dairy than the lactose sugar in the milk.  It is the milk protein and its "complex" which must also be broken down.  The inability to break down lactose causes gut fermentation of the milk and gastrointestinal distress, which the lactaid enzyme helps to break down.  But it does nothing to break down the milk protein, which causes toxemia all the same in the dairy intolerant person.  In children, this often leads to ear infections; in adults, it causes sinus infections, asthma, or allergic responses.

I hope I have helped to clarify this very complex issue of gut digestion, enzymes, and food intolerances, especially in relationship to the fruit category.  If you are fruit intolerant, please don't eat fruit.  You will be healthier without it.  Dr. Letitia Dick




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