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What is Human Growth Hormone, and What Does It Have to Do with ME/CFS?

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Dr. Myhill is a UK-based physician and clinical nutritionist with a special interest in fatigue. Her pioneering research suggests the cells’ energy-generating mitochondria are dysfunctional in chronic fatigue syndrome (ME/CFS) patients. This article is reproduced with kind permission from her educational website (DrMyhill.co.uk).*



I wrote this article in 2007, since when I have tried several patients on hGH. I have not been impressed by the results, so no longer recommend this treatment.

My guess is that low levels of hGH is a symptom of chronic fatigue syndrome (CFS), and correcting the underlying causes of CFS will result in hGH levels returning to normal. I am often asked about hGH – so the information is as follows:

We know that patients with chronic fatigue syndrome have a generalized suppression of the hypothalamic pituitary adrenal (HPA) axis and that many of them can be improved by taking physiological doses of hormones such as thyroxine, DHEA, cortisol and melatonin.

Another important pituitary hormone is hGH….

What is hGH?

hGH is the most abundant hormone produced by the pituitary gland and is the most important anti-ageing hormone. Levels are at their highest during teenage years, then they drop to about a third of this level during one’s twenties and slowly decline thereafter with time.

hGH is converted in the liver to insulin-like growth factor 1 (IGF-1), known as somatomedin, and this promotes glucose transfer through cell membranes as a source of fuel for cells.

Declining levels of the growth hormone are thought to be responsible for many of the symptoms of ageing such as wrinkles, grey hair, decreased energy, increased body fat, cardio-vascular disease, osteoporosis and so on.

Metabolic effects of growth hormone deficiency include less muscle and more fat, poor muscle strength and stamina, osteoporosis, hypoglycemia, slow metabolic rate, poor conversion of T4 to T3, thin skin, poor heart function, poor kidney function, reduced sweating, depression, and foggy brain.

Obviously, many of these symptoms occur in chronic fatigue syndrome.

There are some lifestyle changes which have been well recognized to improve production of hGH.

• The first of these is sleep. Most secretion of hGH occurs during the hours of sleep before midnight. This may explain the old wives’ tale that one hour of sleep before midnight is worth two hours after. It squares with the fact that many CFSs are owls rather than larks.

• The second factor which affects hGH production is diet. Insulin blocks hGH production, so anything that can be done to keep insulin levels low will be very helpful. Again, this may explain why the low carbohydrate, high protein, high fat Stone Age Diet benefits so many of my CFS sufferers.

Further points about diet are that the total amount of food eaten is critical.

Broadly speaking, people eating restricted diets live longer than people eating food ad lib. This has also been well proven in studies on rats. What this means in practical reality is that we should be eating small amounts of the best quality food of low GI index that we can find.

The third aspect of eating is that food after 6:00 pm inhibits hGH production

So perhaps the Chinese proverb you should breakfast like an emperor, lunch like a king, and supper like a pauper has a scientific founding!

• So breakfast should be a protein and fat meal such as bacon and eggs.

• Lunch should be protein and vegetables or salad; i.e., meat, fish, eggs, green vegetables, salad and salad dressing.

• Nuts and seeds should be one’s main snack.

• And the evening meal should be a light carbohydrate meal with vegetables, salad, root vegetables, pulses, fruit and so on.

Micronutrients are essential in the production of hGH.

Deficiencies of calcium, magnesium, potassium, zinc, chromium and vanadium can all inhibit production of hGH.

Finally, exercise stimulates production of hGH.

But this has to be done with great care in CFS because this is what makes sufferers ill. However, the ideal time to exercise is first thing in the morning on rising when one should do whatever is possible without causing muscle weakness or delayed fatigue.

Interestingly the best exercise for optimal hGH production is weight training. Once a week one should go to one’s maximal lift capacity – the maximum amount of weight that can be lifted once on one occasion to optimize results. Again, this must be done with great care in CFS.

The Idea Behind Using hGH

The rationale for trying this was based on a clinical paper produced in July 1990 by the late Daniel Rudman, MD. He was using it to investigate its potential as an anti-ageing substance, and this study showed major improvements in lean body mass (8.8%), reduction in adipose tissue (14.4%), increase in skin thickness (7.1%), as well as improved energy levels, restoration of thinning hair and hair color, improvements in lipid profiles, hypertension, cardiac output, liver function, immune function, sexual function and sleep patterns.

In his paper [“Effects of Human Growth Hormone in Men Over 60 Years Old”] Dr. Rudman stated that these patients became approximately 15 years younger biologically within three months both clinically and seriologically.

[But see also “Growth Hormone Replacement in Healthy Older Men Improves Body Composition but Not Functional Ability,” by Maxine Papadakis, MD, a 1997 report on later research that found no improvement in physical performance, some cognitive function deterioration vs controls, and frequent side effects including edema and joint pain.]

Further work showed that the pituitary gland normally produces youthful levels of human growth hormone until extreme old age, but it is sequestered within the confines of the pituitary gland by the action of hypothalamic hormones. That is to say, the hormone is present, but for some reason is not being released.

There has since been a discovery that certain nutrients, called secretogogues, which contain all natural ingredients, can do everything that human growth hormone injections can do at a fraction of the cost by stimulating the release of these natural hormones.

It is actually a mixture of certain amino acids combined with saccharrides (stevia), which regulate blood sugar and insulin and unblock receptor sites for releasing hGH, which presumably have become blocked by poor diet and environmental toxins.

The pharmacologist John Jameson further discovered that carbonation of the nutrients and the use of chaperone molecules enhance their delivery and he has compounded this into a product called Symbiotropin.

I wonder if this combination could be produced by a high protein diet (amino acids), magnesium carbonate, sleep and detoxing!

Secretogogues – hGH Mimics

The most attractive part of secretogogue treatment is that the clinical improvement is caused by the patient’s own growth hormone. This makes this treatment extremely safe with no potential for overdosing.

Secretogogues have not only been used for anti-ageing and in chronic fatigue syndrome, but they also have profound effects on cardiac disease, diabetes and neuro-degenerative conditions.

Dosage and Treatment

The dose of Symbiotropin is two tablets taken at night, three hours after an evening meal, it should be taken in a fizzy drink (the tablets are effervescent). The idea is not to exhaust the pituitary gland or get tachyphylaxis [decrease in response], and so the treatment is not given continuously. The suggested regime is five days in every seven (i.e., take it on Monday, Tuesday, Wednesday, Thursday and Friday, but do not take it on Saturday or Sunday), then take it for two months in every three.

I [have tried] Symbiotropin on some of my CFS patients (but I have to say without much success!), and the cost is approximately £30 for 40 tablets, so three months supply costs £60….


* This article is reproduced with kind permission from Dr. Sarah Myhill’s educational website (DrMyhill.co.uk)® Sarah Myhill Limited, Registered in England and Wales: Reg. No. 4545198.

Note: These statements have not been reviewed by the FDA. They are general information, based on the research and opinions of Dr. Sarah Myhill unless otherwise noted; are not meant to replace the personal attention of a medical doctor; and are not intended to prevent, diagnose, treat or cure any condition, illness or disease. It is very important that you make no change in your healthcare plan or health support regimen without researching and discussing it in collaboration with your professional healthcare team.

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2 thoughts on “What is Human Growth Hormone, and What Does It Have to Do with ME/CFS?”

  1. roge says:

    some good pts in article but over all found it not useful. there are numerous studies showing the benfits of HGH injections for Fibromyalgia so I take Dr Myhill’s poor results with a grain of salt – perhaps as she used it on me/cfs patients and not those with FM.

  2. munch1958 says:

    My IGF-1 was low. I did the L-Dopa stim test for GH release. I only made 1/4 of normal amounts. A description of the tests and my results are here in my profile.

    HGH has been the single most important factor in my recovery from CFS/FM/Lyme. I probably have been deficient since second grade when my insomnia started. I’m sleeping better than ever. If you think you could be GH deficient do not wait! I ended up with 6 osteoporosis type spine fractures.

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