The Official GFCF Diet Website 

 

Home

Market Place

Where Do I Begin?


 

Frequently Asked Questions


The Big GFCF "FAQ's"

Answering your Frequently Asked Questions about Dietary Intervention for the treatment of Autism Spectrum Disorders and Pervasive Development Disorders



Editors in Chief:
Karyn Seroussi 
Jorgen Klaveness

Co-Editors:
Jay Berger
Jay Bigam
Judy DeHart
Cara Lewis
Lisa S. Lewis


Disclaimer: The content on this website is not medical advice. Consult  with your medical practitioner for all medical advice.


The only non-dairy, non-wheat foods my child will eat are french fries and chicken nuggets. Are these okay?

Chicken nuggets are coated with wheat. Some french fries are dusted with wheat flour to keep them from sticking together. It is a very good idea to get used to checking with your supplier or the manufacturer. Keeping a stack of blank, pre-stamped postcards in the kitchen is a handy way to check.

The biggest problem with french fries eaten out of the house is contamination of the frying oil with gluten from onion rings and other breaded products. Making homemade fries is a good option. If your child refuses them at first, it may be because of what they're missing! Some parents report that their kids have an uncanny ability to detect gluten in foods. Since many of the children enjoy salt, salting the fries might make them more acceptable.



I thought the "five food groups" were so important!

They are, to an individual without food intolerances. But, just as a person who eats a balanced diet might not need to take vitamins, a person with poor nutrition can make up for a lot with a good vitamin and mineral supplement.



Should I be giving my child a vitamin supplement?

Absolutely. Poly-vi-sol with Iron is probably okay to start with, or order a gluten-free multivitamin & mineral formula from your natural foods store,  The GFCF Diet Support Group www.gfcfdiet.com or from Kirkman Labs (800-245-8282). Kal Dinosaur Chewables and "I Love Schiff" liquid and chewables are tolerated by many food-sensitive children, and are available with or without minerals. Because many autistic children have been reported to improve on a regimen of vitamin B6 and magnesium, you may want to order a supplement rich in these nutrients from a lab such as Kirkman. For a 40 pound child, Dr. Bernard Rimland of the Autism Research Institute recommends 300 mgs. of B6 and 100 mgs. of magnesium per day. It is likely that in people with a leaky gut, absorption of B6 (which aids in nervous system function) could be greatly diminished.

 

What are my child's nutritional needs?

There are six basic things a person needs from food: water, protein (and amino acids,) carbohydrates, fats, vitamins, minerals (including iron & calcium.) In addition, food contains certain phytochemical substances that seem to help with functions like disease prevention. It is helpful to consult a nutritionist about the use of supplements such as pycnogenol for any child on a limited diet.

Children who have gone for one year eating only chicken, canola oil, potato, rice, calcium-enriched beverages, and a liquid multivitamin supplement with minerals have had excellent results on nutritional blood tests. You'd be surprised to learn just how unnecessarily varied an American diet is, compared with the diets of other cultures!


So how do I know if my child will respond to this diet?

The biggest clue is when a child self-limits his diet - especially to milk and wheat. This is no longer seen as a "need for sameness" but as a biological addiction. Children who don't necessarily "self-limit" but who also respond are those who eat an unusually large or small amount of food. Although the former may not recognize the source of the opiates, he knows that eating makes him feel good. The latter may realize that many foods make him feel ill, and tries to avoid eating whenever possible. These "failure to thrive" autistic children are very hard to put on this diet because of their parents' fears, but will usually respond when acceptable substitutes to the non-tolerated foods can be provided.

Other symptoms of food intolerance or vitamin deficiency are dermatitis or extremely dry skin, migraines, bouts of screaming, red cheeks, red ears, abnormal bowel movements, abnormal sleep patterns or seizures.





What's all this I hear about yeast?

Candida and other yeasts live in our bodies in small amounts. It was speculated that in individuals with improperly-functioning immune systems, they could flourish in the gut and lead to a host of problems, including fatigue, sugar cravings, headaches, and behavioral problems.

Dr. William Shaw in Kansas has found unusually high levels of "fungal metabolites" (yeast waste products) in the urine of several groups of abnormally functioning individuals (including people with autism.) His first paper describing this phenomenon was published in the Journal of Clinical Chemistry in 1995 (Vol. 41, No. 8.) His urinary organic acids test is performed by the Great Plains Laboratory (913-341-8949).





So does yeast cause autism?

This finding may be just another consequence of the abnormally functioning autistic immune system. However, early antibiotic use may actually be the triggering factor for children predisposed to autism. It has been hypothesized that the candida might aggravate a condition of gut permeability (the "leaky gut" syndrome), which might let the gluten and casein proteins into the bloodstream before they are broken down, so it may in part be responsible for autistic behaviors. Many parents of children with ADD or ADHD as well as those with autism report that treatment for candida does improve their children's behavior and concentration.


How do I treat for candida?

One approach is to ask your pediatrician for a course of Nystatin, which is a non-systemic (not absorbed into the bloodstream) anti-fungal. Taken orally, it works locally in the gut to fight candida. This medication is considered to be quite safe, even when taken for several months. For a 25-35 lb. child, ask the doctor for a prescription for Nystatin powder (125,000 units per cc) in a stevia base, starting with 1 cc 4x/day. Your local pharmacy probably carries a commercial preparation in a sugar base - this feeds yeast! Try a compounding pharmacy such as Pathway (800-869-9160).

"Probiotics" such as acidophilus, the natural bacteria found in yogurt, are other candida-fighters, and are available at the natural foods store in powdered form in the refrigerated section, or from Kirkman Labs. Some acidophilus preparations are milk-based - be sure to get one that is not! Bifidus works in the large intestine and can be of great benefit. "FOS" is desirable in these supplements, as it feeds the probiotics.



That's why you're supposed to eat yogurt when you are on antibiotics!

Exactly. As a matter of fact, in the 1950's, when oral antibiotics were first prepared for general use, scientists knew about this candida problem and coated the tablets with Nystatin. After a few years, the FDA decided that the two drugs should be prescribed separately (which they never were) and made them stop.


My friend's child tried Nystatin and it made him vomit.  If nystatin is so safe, why did he react to it?

The child may have experienced a "die-off reaction" to the candida. As it dies, candida releases toxins into the bloodstream and can cause nausea, vomiting, or diarrhea. It is likely that candida was indeed a problem for this child. Your friend should discuss a dosage change (starting with a low dose and working up to a "normal dose") with the prescribing doctor.


 My doctor has never heard of any of this and she is extremely skeptical. I'm embarrassed to tell her I'm considering this approach.

Skepticism is a good thing in a medical doctor or scientist. However, since there is preliminary evidence to support this safe, non-invasive intervention, it is up to you to educate her, state your wishes, and ask for her support. For a doctor, it is better to wait until all of the data is published in peer-reviewed journals before advocating a treatment. For a parent, it is reasonable to want to help one's child without waiting for all of the results of the "double-blind placebo" studies. Because this approach does not include any unusual supplements, invasive drugs, or expensive treatments, your pediatrician should be supportive. Explain that you would like to try this for a few weeks, and agree that you will be objective about recording your child's progress while on the diet.


Where can I find support?

www.gfcfdiet.com
Largest  free resource on the Internet for information about the GFCF Diet.  Community Bulletin Board with over 150 support groups throughout the United States. Find support in your city or start your own GFCF Diet Support Group.  Guidelines and helpful information provided on the Community Bulletin Board section (see Directory of website; GFCF Kids, our on-line support group with over 10,000 members! Starter packet of information, Discussion about diet, vitamins, recipes and more on our DVD, GFCF Cookbooks, CD's, Vitamins, Yummi Snack Pak over 10 pounds of tasty GFCF snacks.

www.autismndi.com ANDI was established by parent researchers, Lisa Lewis and Karyn Seroussi, to help families around the world get started on, and maintain an appropriate diet. The ANDI mission is simple: To help parents understand, implement and maintain dietary intervention for their autistic children. Look at the PASS list  for local contacts, or form a group yourself. 

Karyn Seroussi author: Unraveling the Mystery of Autism and Pervasive Developmental Disorder: A Mother's Story of Research and Recovery (Simon & Schuster, February 2000, Broadway Books, 2002). 

Lisa Lewis's author:, Special Diets for Special Kids I and II, include loads of information and recipes. 

 

When my child was taken just off dairy he improved greatly, but then he started eating a lot of wheat, perhaps to make up the opiates he was missing. Will I see the same kind of noticeable improvement when I remove gluten?

Some children appear to tolerate gluten. Others are highly sensitive. The degree of tolerance in a specific child is not constant either: It can depend on gut permeability, enzyme function level and a number of other reasons that are poorly understood.
The general answer is, however, that most children who benefit from a milk free diet, will also need to remove gluten.

Some parents say that their child's response to milk removal was quicker and more obvious than when gluten was removed. Paul Shattock has observed that urine tests have shown that casein peptides can leave the system in about three days, but it can take up to eight months on a casein-free, gluten-free diet for all peptide levels to drop.

Research has shown that gluten (as well as casein) can give rise to several different types of opoid peptides, and that these types have different sized molecules. Dr. Robert Cade has demonstrated that the molecule size affects the speed with which the peptides disappear from the body.

If gluten removal is followed by a deterioration or regression (a withdrawal-type response), stay the course! It almost certainly means that your child will benefit. This may seem like a lot of work for an uncertain payoff, but in the lifetime of your child it may be the most important step you take!



What is casomorphin?

Casomorphin (or caseomorphin) is a peptide derived from casein, a milk protein. Casein is one of the major proteins in the milk of all mammals including cows, goats, and humans. When Casein is digested properly, it breaks down into large peptides like casomorphin, and should then be broken down further into smaller amino acids.
However, Dr. Reichelt in Norway, Dr. Cade at the University of Florida, and others found that urine samples from people with autism, PDD, celiac disease, and schizophrenia contained high amounts of the casomorphin peptide in the urine. In its peptide form, casein has opiate properties similar to morphine, and may plug into the same opiate receptor sites in the brain. Researchers have found that these peptides may also be elevated in other disorders such as chronic fatigue, fibromyalgia, and depression based on anecdotal reports of symptom remission after exclusion of wheat and dairy.



What is gliadorphin?

Gliadorphin (also called alpha-gliadin or gluteomorphin) is a substance that resesmbles morphine. Ordinarily, this is a short-lived by-product from the digestion of gluten molecules (found in wheat, barley, rye, oats, and several other grains). Gliadorphin is very similar to casomorphin. Gliadorphin has been verified by mass spectrometry techniques to be present in unusual quantities in urine samples of children with autism, and are believed by many to be a central part of the system of causes and effects that cause autistic development.

The most probable reasons for the presence of these molecules are:

* One or more errors in the breakdown (digestion) process caused by enzyme deficiency and/or

* Abnormal permeability of the gut wall (that would allow these relatively large molecules to enter the bloodstream from the intestine in abnormal quantities).





Is it best to start with one or the other or just go GF/CF from the start?

Some people like to get moving quickly and remove both at once. While this kind of commitment is commendable, there are two reasons why you might want to begin by removing dairy alone. One is that it may be far easier to understand which foods to remove, and allow for parents to get started more quickly. This gets parents in the habit of reading labels, and will get the child used to the idea of eating substitutes for some of his favorite foods.

The other reason is that some children, especially younger ones, can go through a very uncomfortable withdrawal period as the opiates leave the system. This is why some kids' behavior gets worse at first. Although gluten should be removed within a week or two after removing dairy (waiting longer may cause the child to become addicted to gluten, and self-limit only to bready foods), a gradual withdrawal will be easier on the child.

Often, picky children will not try new foods until both gluten and casein are completely eliminated from their diets, and are totally unavailable to them.



Why do I need to completely remove both gluten and casein?

It doesn't take much of these opiate peptides to interfere with normal functioning. Although you may notice a change after just removing dairy (a good place to start), the proteins are so similar that if one is a problem, the other should be removed as soon as possible. Often, no improvement is noted until a hidden source of gluten or dairy is removed from the diet.



Do children with Pervasive Developmental Disorder, Asperger's Syndrome, Apraxia, Dyspraxia and Sensory Integration Dysfunction, and Expressive/Receptive Language Disorder respond to this diet?

These are all considered by many to be disorders on the autism spectrum. If you took the same autistic child to six different doctors, he could be diagnosed with each of the above. For some reason, many professionals are reluctant to use the "Autism" label, perhaps because they want to "spare" the family. We have heard from many, many parents who have told us that some of their children with these diagnoses responded dramatically to the diet. Remember, this diet will only improve the symptoms in children whose behaviors are being caused by the abnormal breakdown of these proteins. This is not the case with every child, but a significant number do respond.



Do older children or adults respond to this diet?

Yes. Obviously, the younger the child the more likely he is to "achieve normal functioning." However, many older children and adults have made dramatic and remarkable improvements, not just in their level of functioning, but in their sleeping patterns, anxiety levels, and comfort levels.
Other factors seem to include current level of functioning, condition of the gut, immune function, and of course, the subtype of the disorder. We have heard from high-functioning adults with autism who describe going on the diet as "a fog lifting." Clearly, most older children have not been "cured," but many have achieved functioning far beyond their caregivers' expectations.


Can you recommend a pediatrician who will listen to me and is "open minded." My pediatrician does not believe diet changes can help. I am willing to go anywhere and do anything for my child.

Although there are now several doctors who are enthusiastically learning about the biological treatments for autism, they are still few and far between. You may need to find a local doctor who is supportive, and educate him or her yourself.
To see a list of DAN! (Defeat Autism Now!) Doctors, or to order the Autism Research Institute's Treatment Guide, The "DAN Protocol," visit www.autism.com/ari


There are also medical links at www.GF/CFdiet.com , www.goodnewsdr.org , and www.autismndi.com/links 

For an incomplete list of physicians reported to be knowledgeable about the "DAN Protocol," visit www.autismndi.com/doctors.htm

.

 

My doctor has never heard of any of this and she is extremely skeptical. I'm embarrassed to tell her I'm considering this approach. What do you think?

Skepticism is a good thing in a medical doctor or scientist. However, since there is preliminary evidence to support this safe, non-invasive intervention, it is up to you to educate her, state your wishes, and ask for her support. For a doctor, it is better to wait until all of the data is published in peer-reviewed journals before advocating a treatment.

For a parent, it is reasonable to want to help one's child without waiting for all of the results of the "double-blind placebo" studies. Because this approach does not include any unusual supplements, invasive drugs, or expensive treatments, your pediatrician should be supportive. Explain that you would like to try this for a few weeks, and agree that you will be objective about recording your child's progress while on the diet.
If you feel that you need to support your case legally with the scientific and medical documentation that is currently available, please see the medical links at www.GF/CFdiet.com , at www.autismndi.com , and at www.gnd.org 

 

But my child's immune system seems to be working unusually well - he is rarely sick.

What we're describing is not an immune deficiency, but rather an immune dysfunction. Many (although not all) seem to share a history of ear infections and spitting up as babies (possibly milk-related), or of chronic diarrhea, constipation, or loose stools (possibly wheat-related.) Other parents note that their autistic children seem to be the healthiest members of the family. In this case, it has been hypothesized that the immune system is too aggressive and ends up turning on the nervous system. This may explain the presence of anti-myelin antibodies in some children, and may also explain why some have immune issues like multiple allergies but do not respond well to dietary intervention.




What causes this problem? Autism seems to be so much more common than it used to be?

Researchers are not sure, but it seems likely at this time that most cases are caused by a genetic predisposition or by environmental toxicity, combined with some kind of triggering event that stresses the immune system, such as a vaccination or virus. Milk allergy may be a predisposing factor, or perhaps another immune instability. In several cases, prolonged use of antibiotics, celiac disease, or chronic viral illness seems to have contributed to the onset of the disorder.

There was some debate as to whether we are seeing an increase in incidence or just better diagnosis, but studies by the California Department of Developmental Services indicate that there has been, in fact, a significant increase in the number of children with this disorder in the past ten years.

One reason we can determine this is by looking at the number of school-age children referred for special education for various disabilities. If autistic children had been classified as something else (such as mentally retarded), then one would expect the number of children entering the system with the MR diagnosis to drop, as the autism numbers go up. However, this is not the case, with an increase in autism of up to 600% in some school districts, and the total number of special-ed cases increasing respectively.


 

I am confused about allergy vs. intolerance. I understand that our children may be sensitive to corn, soy and other foods as well as gluten and casein. Does this mean that they will eventually start turning these foods into the morphine-like compounds too? If this were the case, would they show up as an allergy on a RAST test? Or were our children were always allergic to these foods (a regular allergy that may cause behavioral changes in our children), and we just didn't know because the gluten and casein were hiding the allergy.

To a traditional physician or allergist, "allergy" is used to describe a reaction of the IgE part of the immune system, resulting in hives, swelling, or breathing problems. However, the words "allergy" and "intolerance" are often used to describe any inappropriate reaction to foods or substances that should normally be harmless to the body.
There are at least three different ways that a child with autism may have a problem with a food like gluten or milk, and it's important to understand the distinction:

1. An IgE ALLERGY that results in skin problems, hives, swelling, breathing problems, etc. This can be tested using a skin test or blood test.

2. An INTOLERANCE (usually mediated by the IgG or IgA part of the immune system, or by an enzyme insufficiency such as lactose intolerance) that can result in more varied or vague symptoms like discomfort, stomach problems, sleep problems, joint pain, ear infections, or hyperactivity and behavior problems. Sensitivity to these substances can be tested with an ELISA blood test.

3. PEPTIDUREA (peptides in the urine) that is caused by the inability of the body to properly break down certain proteins. It is hypothesized that certain peptides, notably from milk and wheat proteins, are plugging into the opiate receptor sites of the brain and disrupting brain and nervous system function. Urine testing for this is still experimental, and many parents believe that the best way to find out if this is what is causing a child's autism is a strict trial period on the GF/CF diet.

In the GF/CF diet, gluten and milk are avoided because they are strongly suspected of having such a direct pharmacological effect. When these proteins are only partly broken down, some of the resulting fragments can be strikingly similar to morphine, and act in more or less the same manner. (This type of reaction can co-exist along with a classic type of allergy towards the same foods).

Recent research indicates that protein from both corn and soy (as well as protein from blood and spinach) could also contain some molecule sequences that could - if the patient had an enzyme deficiency - be broken down into something closely resembling opoid peptides.
Products made from soy or corn will also often contain metabolic end products made by microscopic organisms like bacteria, molds or fungus. Some of these are suspected of being harmful to a small number of people who are genetically disposed to autism. The amount of danger will depend on individual conditions AND on the quality of the corn or soybeans used in the production process. Soy OIL (lecithin) may be worse than most other soy products, since this product will look and taste okay, even when made from moldy raw material, and since the "bottom grade" of the harvest tends to be used for it.

Some people also think that one of the natural pigments in corn (lutein) might cause problems for reasons that are not properly understood (see: "Sara's Diet"). This must be regarded as highly speculative.

 

I heard that dairy peptides (from casein) leave the body in about 2-4 days and that gluten takes much longer. How long does it take to eliminate gluten from the system, or at least bring it down to an acceptable level? Is it possible that gluten might never leave the body completely?

We don't know the answer to this. In a study by Paul Shattock, researchers found a 22% reduction in 5 months in children (average age 9). Peptides may leave the body more rapidly in little children because they have accumulated less - they tend to have worse withdrawal symptoms (more vicious but shorter duration).
In Celiac Disease there were still antibody/gliadin complexes found in the body some 7 years after going gluten free, so it is possible that some of the peptides may not leave the body completely.

 

What is Urinary Peptide Testing?

By collecting urine samples, storing them frozen, and examining them using mass spectrometry, HPLC, or RA methods, certain opiates such as casomorphin can be detected in levels higher than those found in normals. Such results would indicate the necessity of implementing a GF/CF diet. However, there is still some debate as to the accuracy and consistency of these test results.
From Paul Shattock: "Certain biologically active peptides derived mainly from gluten and/or casein in the diet are not broken down correctly, and through problems with the permeability of the gut, are present in the blood in much greater quantities than would normally be expected. The presence of these compounds in the blood would mean that they would tend to be collected in the kidneys and dumped in the urine; hence, the peptide content of urine would be to some extent, reflective of the content of the blood."

 

What else contains gluten?

Wheat, oats, rye, barley, kamut, spelt, semolina, malt, food starch, grain alcohol, and most packaged foods - even those that do not label as such. There is a lot of information on gluten intolerance because of a related disorder called Celiac Disease.



Aren't probiotics the "healthy flora" I've heard about?

Yes, they compete with candida for the sugars you eat. It's the "good bacteria." You may be aware that acidophilus is eradicated from your gut when you take antibiotics.



How do I interpret the test results?

Each lab is different, with different testing methods and reference ranges. If you do not understand the test results, call the lab directly.



My child does not crave certain foods - could he respond to the diet?

Yes, absolutely. Although food cravings are a "dead giveaway," those who have them are not the only kids who respond to the diet. Other big clues are GI problems like diarrhea or constipation, good and bad days, dilated pupils, and sleep disturbances. However, if your child does not meet these criteria, he still may have a surprising response.

Sometimes we feel that parents are hoping we'll tell them that their child doesn't need to be on this diet. Isn't that sad? This would mean that there is nothing they can do for the child besides therapy. However, we estimate that about 70% of autistic children do respond to the diet. These are good enough odds to do the work involved.



If my child responds to the removal of dairy, does that mean I have to remove gluten? Is it possible that he can have a problem with one, and not the other?

The structure of the peptides of gluten and casein (and possibly corn or soy) are very similar in size and weight as well as ability to cause a reaction. If one needs to be removed, the other should go as well. Even though