Clinical Study of Simplified Yasko Protocol for CFS and Fibromyalgia

January 23, 2011

Posted by Cort Johnson

Clinical Study of Simplified Yasko Protocol for CFS/fibromyalgia

Rich Van Konynenburg, Ph.D.
Independent Researcher/Consultant

Neil Nathan, M.D.
Gordon Medical Associates
Santa Rosa, CA

Yasko Protocol Conference – Boston
July 30-August 1, 2010

• Type: Open-label clinical study
• Setting: A single private practice in Springfield, Missouri
• Informed consent: Patients signed forms after explanation of the study and its possible risks.
• Duration of treatment: Six months (However, note that after the 6-month study period, individualized treatments were added to the basic protocol for an additional 3 months.)
• Outcome measures: Objective testing and self-rating of symptoms (Details are given later in this paper.)
• Restrictions on medications and additional supplements: None, except that they and their dosages were not to be changed during the study without the knowledge and agreement of one of us (NN).

Patients in the Clinical Study

• Total number–30. All suffered from chronic fatigue.
• Twenty-one met our strict criteria for CFS (Fukuda plus postexertional fatigue and malaise), and a statistical analysis was performed on their results from six months of treatment. This can be found at
• Of these 21 patients, 18 also met the ACR criteria for fibromyalgia.
• Sex: All female
• Ethnicity: All Caucasian
• Ages: 33 to 84 (mean—52) years
• Durations of illness: 1 to 20+ years
• Histories of previous treatment: These patients had exhibited partial response to treatment ranging from one to twelve years in duration with a protocol that included evaluation and treatment of adrenal, thyroid and sex hormones; food allergies; intestinal dysbiosis; heavy metal toxicity; infections (EBV, Lyme disease, mycoplasma); mold exposure; magnesium deficiency; and other nutritional imbalances

Additional diagnoses:

• Migraine headaches — 15 patients
• Irritable bowel syndrome — 13
• Chronic sinus infections — 11
• Endometriosis — 6
• Restless leg syndrome — 5
• Mononucleosis (Epstein—Barr virus) — 5
• Mold exposure and/or toxicity — 5
• Multiple chemical sensitivity — 4
• Lyme disease (previously treated) — 2
• Interstitial cystitis — 1
• Mycoplasma infections — 1
• Chronic vulvitis — 0

Initial General Questionnaire

The patients were given an initial questionnaire that requested the following information:

• Starting date of treatment
• Name
• Age
• Date of birth
• Sex
• Family history of these conditions (yes or no ?), if so, which relatives?
• Date of onset of symptoms
• Sudden onset (yes or no ?)
• Cause of onset, if known
• Date of diagnosis of chronic fatigue
• Date of diagnosis of fibromyalgia
• Other diagnoses (listed in previous section above)
• Current medications
• Current supplements

The initial general questionnaire also included questions to ascertain whether the patients met the Fukuda et al. case definition for CFS and the ACR criteria for fibromyalgia, and whether they had experienced post-exertional fatigue and malaise.

Supplement Protocol

The treatment protocol used in this study was extracted from the full treatment program developed by Yasko for the treatment of autism and adult neurological diseases. It consisted of five supplements:

• FolaPro (5-methyl tetrahydrofolate): ¼ tablet (200mcg) daily
• Intrinsi B12/folate: ¼ tablet daily (Combination of [folic acid, 5-methyl tetrahydrofolate, and folinic acid] (200 mcg), cyanocobalamin (125 mcg), calcium (22.5 mg), phosphorus (17.25 mg), and intrinsic factor (5 mg))
• General Vitamin Neurological Health Formula (a multivitamin, multimineral supplement including antioxidants, trimethylglycine, nucleotides, supplements to support the sulfur metabolism, a high ratio of magnesium to calcium, and no iron or copper): starting with ¼ tablet and increasing the dosage as tolerated, to 2 tablets daily
• Phosphatidyl Serine Complex (phospholipids and fatty acids): 1 softgel capsule daily
• Activated B12 Guard (hydroxocobalamin): 1 sublingual lozenge (2,000 micrograms) daily

Composition of General Vitamin Neurological Health Formula

• Serving Size: 6 Tablets (note that up to 2 tablets per day are used in the treatment)
• Amount per serving: Vitamin A (as palmitate)5000 IU,Vitamin C (ascorbic acid)500 mg,Vitamin D (as cholecaliciferol)400 IU,Vitamin E (as d-alpha tocopheryl succinate)400 IU,Vitamin K (as phytonadione)40 mcg,Vitamin B-1 (as benfotiamine)25 mg,Vitamin B-2 (as riboflavin)12.5 mg,Niacin (as niacinamide)37.5 mg,Vitamin B-6 (as pyridoxal-5-phosphate)12.5 mg,Folic Acid100 mcg,Vitamin B-12 (cyanocobalamin B12)250 mcg,Biotin150 mcg,Pantothenic Acid (as d-calcium pantothenate)50 mg,Calcium (as calcium d-glucarate)25 mg,Magnesium (as citrate, oxide)100 mg,Zinc (as monomethionine)5 mg,Selenium (as L-selenomethionine)100 mcg,Manganese (as arginate)1 mg,Chromium (as polynicotinate)100 mcg,Molybdenum (as amino acid chelate)75 mcg,Potassium (as citrate)5 mg,Broccoli florets powder160 mg,Citrus bioflavonoids50 mg,Choline (as bitartrate)25 mg,Inositol25 mg,PABA (para-amino benzoic acid)5 mg,Garlic (Allium sativum) bulb powder200 mg,L-methionine150 mg,Milk thistle (Silybum marianum) seed extract100 mg,N-acetyl-cysteine75 mg,Pine (Pinus maritimus) bark extract25 mg,Taurine250 mg,Turmeric (Curcuma longa) root extract50 mg,Intrinsic Factor5 mg,Trimethylglycine (TMG)50 mg, Free Form Nucleotide Complex100 mg,Boron1 mg,L-Carnitine (Tartrate)100 mg.
• (Ref.:

Objective Testing: Methylation Pathways Panel from Health Diagnostics and Research Institute (formerly Vitamin Diagnostics, Inc.)

Metabolites measured:

• S-adenosylmethionine (red blood cells)
• S-adenosylhomocysteine (red blood cells)
• Adenosine (plasma)
• 5-methyl tetrahydrofolate (plasma)
• 10-formyl tetrahydrofolate (plasma)
• 5-formyl tetrahydrofolate (folinic acid) (plasma)
• Tetrahydrofolate (plasma)
• Folic acid (plasma)
• Folinic acid (whole blood)
• Folic acid (red blood cells)
• Glutathione (GSH) (plasma)
• Oxidized glutathione (GSSG) (plasma)

Additional Objective Testing

• Thyroid panel (TSH, total T4, total T3)
• Characterization of polymorphisms associated with the methylation cycle: (AHCY-01, BHMT-08, CBS C699T, COMT V158M, and MTR A2756G)
• Human Leukocyte Antigen (HLA) DR DQ typing
• Functional Acuity Contrast Testing (FACT)
• C4a
• TGF beta-1

Enumeration of Symptoms and Self-Rating of Outcome Measures

• The patients were asked to mark their symptoms on a checklist (initially and at 6 months) that included 38 symptoms.
• The patients were also asked to rate five outcome measures initially and at 3 and 6 months on visual analog scales ranging from 1 to 10. These measures consisted of energy, sleep, mental clarity, freedom from pain, and overall feeling of wellbeing.
• In addition, at 3 and 6 months they were asked to estimate their percentage of improvement.

Symptoms Checklist

• Confusion, disorientation
• Difficulty in word finding
• Impairment of concentration, difficulty assimilating new information
• Reduced task completion
• Hypersensitivity to bright light
• Night blindness
• Tearing, redness of eyes
• Blurred vision
• Chronic aching muscles
• Joint pain, morning joint stiffness
• Pain in weight bearing joints
• Nausea
• Loss of appetite
• Weight gain (How much, and over what period of time ?)
• Abdominal pain
• Chronic sinus congestion
• Chronic cough that mimics asthma
• Shortness of breath
• Ice-pick like pain, or electrical pain that shoots into a muscle
• Nosebleeds
• Metallic taste or other unusual taste
• Vertigo, dizziness
• Ringing in the ears (tinnitus)
• Rage or inappropriate anger
• Panic attacks or anxiety
• Depression
• Tingling, “needles and pins” sensation
• Increased sensitivity to touch
• Difficulty with sleep
o Difficulty with getting to sleep
o Difficulty with staying asleep
• Mood swings
• Excessive thirst or frequent urination
• Impotence
• Irregular vaginal bleeding
• Low body temperature
• Chronic yeast infections
• Onset of menopause (if appropriate)

Conduct of the Clinical Study

• The clinical study was conducted by one of us (NN) in his private practice, with the help of administrative and nursing staff.
• The study was explained to each of the patients, including the purposes, the protocol, and the possible risks. Each patient signed an informed consent and responded to the initial general questionnaire.
• The patients were supplied with the supplements in the protocol at cost.
• The objective testing as described above was performed on the patients initially and after 3 and 6 months of treatment. After 3 and 6 months of treatment, they also responded to follow-up questionnaires that included general questions about response to treatment, a symptom checklist and self-rated visual analog scales for the outcome measures described earlier.


Instructions to Patients in the Clinical Study

The patients were given the following instructions with respect to the supplement protocol:

• The first two supplement tablets are difficult to break into quarters. We recommend that you obtain (from any pharmacy) a good-quality pill splitter to assist with this process. They can, alternatively, be crushed into powders, then separated on a flat surface, and the powders can be mixed together. They can be taken orally with water, with or without food.
• Occasionally these can make patients sleepy, so some take them at bedtime. They can be taken any time of day, with or without food.
GO SLOWLY. Occasionally, as the methylation cycle blockages are released, toxins are released and processed by the body, and this can lead to an exacerbation of symptoms. IF THIS HAPPENS, try smaller doses, every other day. SLOWLY work up to the full dosages. If you have questions, please call our office to discuss them.

Results of the Clinical Study

• Various patients reported some early exacerbation of symptoms, which in most cases was followed by a greater improvement in symptoms. Three patients decreased their dosage frequency to every second or third day for several days, until they could tolerate the full daily dosage schedule.
• Sixteen of 30 patients (53%) reported an initial worsening of symptoms, beginning in most of these cases within 3 or 4 days, but in some cases beginning at up to 2 weeks. Most of the symptoms were mild, and none of the patients discontinued usage of the supplements during the first 3 months.
• Most common side effects: gastrointestinal (pain, cramps, constipation, or diarrhea), reported by 6 out of 30 patients or 20%; increase in pain, reported by 4 out of 30 or 13%; and increase in fatigue, reported by 3 out of 30 or 10%. Other symptoms, reported by one patient each, were a decrease in appetite, poor sleep, weak legs, flu-like symptoms, and an increase in anxiety and depression.
• For those who experienced improvement, the time to self-reported improvement on the protocol was an average of 5.6 weeks, with a range from immediate improvement (which was rare) to as long as 8 weeks before improvement was experienced.

Study Results at 3 months

• All 30 patients completed the study requirements at 3 months.
• 25 out of 30 patients reported improvement (83%).
• Among the group that reported improvement, 8 out of 30 reported marked improvement (27%).


• All 30 patients completed the study at 3 months
• 29/30 patients completed the study at 6 months
• 25/30 patients completed the study at 9 months
• The patient who dropped out before 6 months reported 100% relief of pain and 60% overall improvement, but her family insisted that she be followed at another clinic.

After six months:

• Two patients reported complete relief of pain, complete relief of symptoms, returned to work at full capacity and decided not to continue the study.
• One patient underwent bilateral hip replacement surgery and could not return for follow up.
• One patient was disappointed with her results and elected to discontinue her treatment.

Outcomes after 9 months

• At 9 months, 15 of the 25 patients remaining in the study at that time reported that they had experienced >50% improvement.
• Three of the 5 patients who had dropped out had also reported >50% improvement.
• Adding these together, 18 out of the original 30 patients (or 60% of them) reported >50% improvement.


D.F. was a 49 yo wf with a 6 year hx of FM and CFS. Her initial glutathione 3.0 (nl 3.8-5.5) and SAM 217 (nl 221-256). Although she felt a little better after the first 3 months of supplements, glutathione was 2.8, SAM 226 on f/u. (CBS +) After 6 months, GSH 3.5 and SAM 240. Still minimal clinical improvement. After beginning NH3 RNA, Nucleotides and Trehalose (24 hr urine aa showed elevated taurine and cysteine) at 6 months…

After just one month on those supplements, she felt so much better that she was able to resume full time work, which she had not been able to do for 5 years, successfully. She was free of pain and her energy was back to normal. 9 month levels of GSH were 4.0 and SAM 240.


B.E. was an 84 yo wf with a two year history of FM and CFS. Her initial GSH was 2.7, SAM was 201. She reported no clinical improvement at 3 months, but had two episodes of severe infection requiring two rounds of antibiotics during that time. Her GSH was 3.2 and SAM 220 at 3 months. At 6 months, still no improvement and GSH only 3.0, SAM 233.

Since she had a +FACT she was evaluated for heavy metal toxicity with DMPS challenge test (elevated levels of mercury were found) and treated with cholestyramine for mold exposure, and DMPS IV monthly with oral DMSA. By the completion of the study, she reported marked improvement, and was able to join her friends for a week-long visit to Paris, noting she was pain free and her energy had returned to almost normal. At 9 months, GSH 4.0 and SAM 232.


S.H. was a 55 yo wf with FM and CFS for 8 years. She was on disability for those conditions. We had discovered an elevated level of mercury on DMPS testing 4 years prior (level: 34) but she elected not to treat it for financial reasons. Initial GSH level was 3.4, SAM 207. These rose over the study period: GSH at 3 months 3.9, and 6 months 4.8 and at 9 months 4.6.

SAM rose to 219 at 3 months, 230 at 6 months and 267 at 9 months. While noting a 20% improvement in energy, sleep and well-being, no additional improvements were noted. She continued to decline to treat the elevated mercury level.

AFTER 9 MONTHS OF STUDY : One Additional Component

• 9 of our 25 remaining patients still had significantly elevated adenosine levels.
• All agreed to a 2-3 month trial of acyclovir
• Dosage of acyclovir: 200mg 5x a day
• Results: 8 of 9 patients reported an additional 20% improvement in overall well-being, which held even when acyclovir was discontinued.

Are the 9-month results of this study consistent with the predictions of the Glutathione Depletion—Methylation Cycle Block hypothesis ?

Yes, as follows:
1. The reduced glutathione levels were significantly below normal before treatment was begun.
2. There was a partial methylation cycle block before treatment was begun.
3. The methylation cycle block was partially lifted by treating with bioactive forms of vitamin B12 and folate, together with basic nutritional support, directed specifically at raising the activity of the enzyme methionine synthase, which is the enzyme hypothesized to be partially blocked.
4. Treating to lift the methylation cycle block not only improved the methylation capacity, but also raised glutathione (as well as the ratio of reduced to oxidized glutathione), suggesting that these two phenomena are indeed linked in an interactive mechanism in CFS, as they also appear to be in autism.
5. The mean level of reduced glutathione rose by 47%, while the mean level of oxidized glutathione rose less than 5%, suggesting that the main issue involving glutathione in CFS is a deficit in production, rather than a deficit in recycling. (However, it must be noted that B2 and B3 supplements were included in the protocol, which may have increased the activity of glutathione reductase to some extent.)

What lab tests can be used to see if the GD-MCB hypothesis applies to a given case of CFS?

• The methylation pathways panel (offered by Health Diagnostics and Research Institute (formerly Vitamin Diagnostics, Inc.) is the most definitive for detecting methylation cycle block and glutathione depletion.
• Urine organic acids testing for methylmalonic acid and formiminoglutamic acid (“figlu”) are also very helpful. When these are elevated, they indicate low adenosylcobalamin and low tetrahydrofolate, respectively. When both methylamalonic acid and figlu are elevated, it is very likely that methionine synthase is partially blocked.

The Bottom Line

• A hypothesis has been developed to explain chronic fatigue syndrome (CFS).
• Key features: a chronic partial block of the methylation cycle, significant draining of folate from the cells, and a chronic depletion of glutathione.
• Explains: genetic predisposition, biochemical abnormalities, and many seemingly unconnected symptoms of CFS.
• Tested in a clinical study using a simplified treatment extracted from the full treatment program of Dr. Amy Yasko, and results are found to be consistent with the hypothesis.
• Lab testing is available to determine whether the hypothesis applies to a particular patient. So far it appears to apply to most CFS patients.
• This simplified Yasko treatment is currently producing significant benefits in most patients who use it, and it has resulted in apparently complete recovery in a small number of patients. Additional benefit can be obtained by incorporating additional parts of the complete Yasko protocol.


• The clinical study was sponsored by an anonymous donor as part of the effort of the Ratna Ling Working Group. The authors express their appreciation for this sponsorship.
• We also wish to acknowledge the help of Drs. Tapan Audhya, Amy Yasko, Jacob Teitelbaum, and Ritchie Shoemaker in planning the clinical study.
• Management was provided by Kevin Joyce, and nursing support was provided by Neva Dix. We are very grateful to them as well.
• Finally, we extend special thanks to the patients who were willing to participate in this study.

For further information:

Rich Van Konynenburg,Ph.D.

Neil Nathan, M.D.
Gordon Medical Associates
Santa Rosa, CA
(707) 575-5180

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