Marmosets are gluten sensitive!

Baby marmosetsPoor little things! So, they too are gluten sensitive….

In fact, the irresistible research report that Alex sent me some weeks ago, reports that Common Marmosets (like the guy below who lives at the Landgoed Hoenderdaell wildlife park in the Netherlands) are gluten sensitive. I think, however, that these little chaps are Pygmy Marmosets so may have tougher digestions.

Anyhow, the good researchers at  the Faculty of Veterinary Medicine at the University of Leipzig ‘offered a gluten-containing diet to 24 animals, followed by a gluten-free diet. During these diets, serum IgA antibodies to gliadin (AGA), tissue transglutaminase (tTG), deamidated gliadin (ADGA), and glycoprotein 2 (AGP2A) were determined. Body weight, diarrhea, and other clinical symptoms were recorded.’

The result? ‘Gluten increased AGA, tTG, and AGP2A concentrations in 13 of 24 animals. A significant decline of AGA and AGP2A was seen on gluten withdrawal. Positive (AGA, tTG) animals presented diarrhea more frequently on gluten-containing diet and showed significantly increased body weight on gluten-free diet compared to negative animals.’

Or, in other words eating gluten gives marmosets digestive problems which disappear once they stop eating it! Hopefully, the marmosets suffered no lasting damage – and the researchers learnt something of use – although I am not entirely sure what…. Do marmosets normally eat toast for breakfast?

Common marmoset

Bad medicine: food intolerance

A few days ago Alex Gazzola pointed me to an article in the current issue of the BMJ by Dr Des Spence, a GP in Glasgow, laying into both the ‘allergy industry’ and the food industry for promoting food intolerance as a way to make money. You can read the article here and comment yourselves if you wish to.  (You can get a free 7 day subscription if you do not want to lay out a tenner on an on-going BMJ sub.)

There was nothing very new in what Dr Spence was saying (the science behind food intolerance is sparse and ‘allergy testers’ and the food industry are merely jumping on the bandwagon and conning a gullible public into spending huge sums on irrelevant tests and unnecessary ‘freefrom’ foods) but since it was appearing in the august pages of the BMJ I felt that I needed to make a response. In fact I was not the only one, as you will see if you read the article. However, if you do not want to go to the bother of logging in, what Dr Spence had to say is pretty clear from my comments on his article which I reproduce below.

 

In his piece on ‘Bad Medicine: Food Intolerance’ Dr Spence berates ‘the allergy industry’ for jumping on the profitable but totally ‘unscientific’ food intolerance/gluten-sensitivity bandwagon.

And he is certainly right about the ‘unscientific’. There is indeed very little scientific knowledge about food intolerance or non-coeliac gluten sensitivity. But the fact that we know little about them does not mean that they do not exist – merely that we do not know much about them. Until Copernicus discovered that the earth went round the sun we did not know about that either – but that had not stopped it doing so for billions of years.

While IgE mediated allergy (an immediate, immune system reaction such as peanut allergy), and classic coeliac disease, have been widely researched and are reasonably well understood, delayed reaction food sensitivity and ‘non-coeliac gluten sensitivity’ have scarcely been studied at all and are, therefore, scarcely understood at all.

However, there is a significant proportion of most Western populations who suffer from either chronic or intermittent, indeterminate, ‘idiopathic’ ill health (irritable bowel syndrome, fatigue, joint pains, chronic headache, low level depression etc etc etc). In the vast majority of these cases their GPs can provide them with neither an explanation nor a treatment for their conditions.

While some of these patients continue to suffer in silence (or to clog up their GPs waiting lists) others seek an answer elsewhere – some experiment with homeopathy, or yoga, or Traditional Chinese medicine, others attribute their ill health to a ‘food intolerance’ or, more recently, to gluten sensitivity.

(And before Dr Spence dismisses ‘gluten sensitivity’ as a industry driven fad, maybe he should read this paper, published early last year, by many of the most respected names in coeliac research, Spectrum of gluten-related disorders: consensus on new nomenclature and classification [1] – especially the concluding paragraph; a further article in this very journal last November [2] and take a look at the clinical trails now underway in Boston and in Naples. [3])

However, although attributing ill health to a food intolerance may seem an easy answer, actually pinpointing the offending food is far less easy. Currently ‘medical science’ has nothing to offer but an ‘elimination and challenge’ diet, a diagnostic tool that takes a great deal more time and commitment on the part of both the patient and their medical practitioner than either are usually prepared to commit to.

While IgG ‘allergy/intolerance’ tests (such as the York tests mentioned by Dr Spence) may be of dubious scientific validity (you do not have to be either allergic or intolerant to a food to create IgG antibodies to it) at least they do offer some guidance and eliminating the foods pinpointed by their tests does very often improve that person’s symptoms – although this may often have as much to do with focusing that person’s attention on what they are actually eating as it has to do with an intolerance.

Given that the average Western diet leaves a lot to be desired in terms of nutritional balance, adopting a diet with a more balanced nutritional profile may already be enough to favourably affect a sufferer’s health. An interesting study carried out in 2005 for the Allergy Research Foundation found that the symptoms of around 50% of general practice patients who believed that they had a ‘food allergy’ resolved when they were put on a ‘healthy eating’ diet for two weeks.) [4]

Meanwhile, as Dr Spence rightly points outs, the food industry has seen an opportunity and has moved in. But then that is what industries do; if they see a market for a product, they will supply that product, be it football shirts, top of the range sports cars or gluten-free food.

In this particular instance, the industry’s attention was originally attracted not by those who are self-prescribing a ‘freefrom’ diet but by the significant growth in diagnosed cases of coeliac disease (up from one in 300 to one in less than 100 and increasing daily) and in genuine food allergy (one in 70 children now have a peanut allergy). But there is no doubt that it is the numbers of those who are now choosing to eat ‘freefrom’ rather than those who have to do so that has fuelled the recent and dramatic growth in the industry.

On the other hand, all industries depend on their customers to buy their products and, given that ‘freefrom’ foods still remain significantly more expensive than conventional foods, they must be perceived to deliver some benefit to those who purchase them otherwise, in these straightened times, those purchasers would not continue to buy ‘freefrom’. Yet the upward trend in the purchase of ‘freefrom’ food shows no sign of slackening, nor do respected market forecasters such as Mintel, see any chance of it doing so anytime soon. [5]

So, Dr Spence, while you are condemning the food industry for peddling ‘bad medicine’ could the issue be rather different? Could it be that, far from being in the vanguard of scientific discovery and development, the medical fraternity is, yet again, trailing behind while the patient and the food industry lead the way?…

1. http://www.biomedcentral.com/1741-7015/10/13
2. http://www.bmj.com/content/345/bmj.e7907
3. http://www.clinicaltrials.gov/ct2/show/NCT01485341
4.
http://www.foodsmatter.com/allergy_intolerance/management_treatment/arti…
5. http://store.mintel.com/meat-free-and-free-from-foods-uk-september-2012

Since Dr Spence would no doubt dismiss my views as biased and ‘driven by profit’, let me declare my interest. For 20 odd years I have run totally independent magazines and websites (www.foodsmatter.com) providing information and support to those who suffer from food allergy, food intolerance and their many related health conditions. This information has included information on the foods available for those on ‘special diets’. These websites take a very small amount of advertising from industry but are in no way industry supported.

Six years ago we decided that awards might be helpful to encourage better quality, nutritional awareness and innovation in what had come to be known as the ‘freefrom’ industry. These awards (www.freefromfoodawards.co.uk) are ‘supported’ by the food industry in that we have sponsors and companies pay to enter however, all judging is entirely independent. During these six years the availability, range, quality and nutritional profile of ‘freefrom’ foods has improved enormously and we would hope that our awards have in some way contributed to this improvement.

Competing interests: I run independent informational websites supporting those with food allergy and intolerance and industry awards for ‘freefrom’ food.

The Truth about Gluten – and the Barrier Plan

It is so long since I have blogged that I have almost forgotten what the blog looks like… All down to the ‘clear up’ after the very successful FreeFrom Food Awards party and presentation on the 17th (see here for the winners and here for Alex’s usual witty report on the party). As anyone who has run functions will know, the ‘tidy up’ process after a ‘do’ always ends up by taking far longer than the organisation that preceded it….

Anyhow, I thought that while I was getting my head back into blogging mode, I would direct all readers with an interest in gluten sensitivity to Micki Rose’s new and revamped sites. As  many of you will be aware, Micki has been working on the theory that it is not just the traditional ‘coeliac’ grains (wheat, barley and rye) which cause problems for those with gluten sensitivity (and for those coeliacs who do not really get better on the traditional ‘coeliac diet’) but all grains – and she does mean all grains.

Using her Truly Gluten Free site as both a research tool and to log her progress, she has been tracking down, in forensic detail, ‘truly’ gluten free foods, supplements and skincare products. Even more importantly she has been developing her theory that the real problem is not so much the gluten but a breakdown in the function of the many ‘barriers’ (gut, skin, blood-brain etc) which should be preventing proteins such as gluten and other potential allergens crossing into the bloodstream and triggering both allergic and autoimmune episodes.

She will, I hope, be precis-ing her theories for us for the FoodsMatter sites in the near future, but rather than waiting for that, why not go directly to her two sites where she explains her theories: the very interactive Truly Gluten Free blog site  where you can also read the experiences of those who have been testing out her protocols for her, and her new site, http://allergyandintolerance.com where she takes you, step by step, through the regime that she has developed.

As yet, I have not had a chance to do more than glance at the latter, but if I know Micki, it will be extremely well thought through, very thoroughly tested and totally user friendly. And, if the feed back from those who have tried the diet is any guide, life-changingly successful! Good reading…