What Is Gluten And Why Is Going “Gluten Free” In Fashion?

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Gluten is a group of proteins in wheat, barley, and rye that gives bread its chewy texture. About 1% of people have celiac disease, an autoimmune condition that makes gluten genuinely harmful, and a few percent more report non-celiac gluten sensitivity. For everyone else, gluten is harmless, so going gluten-free brings no proven health or weight-loss benefit.

One thing about society will likely never change – the never-ending stream of trends and fashionable fads that rise and fall in a matter of years, months, or even weeks. This can range from the must-have Christmas present of the year or a particular Hollywood pattern to a new workout regimen that can slash pounds instantly or a health fad diet.

These sorts of trends can be irritating, inexplicable or obnoxious, but they also seem rather unavoidable. In recent years, a rather strange obsession has arisen in America, although it is spreading to many other parts of the world – the fear of gluten! It seems that everyone is going “gluten-free” lately, but what is this fad all about – and when can we expect it to end?

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Short Answer: Gluten is a broad term for some of the proteins that are found in wheat, rye, barley and triticale. The gluten-free diet is fashionable, but only a very small number of people are truly allergic or insensitive to gluten. For the rest of these fad diet fanatics, eliminating gluten is essentially pointless.

The Strange Infamy Of Gluten

Not so long ago, if you had walked into a restaurant and asked for a gluten-free menu, most waiters would have looked at you like a crazy person, and yet today, if a restaurant doesn’t offer a gluten-free option, it’s likely to get torn apart on Yelp. This recent phenomenon is somewhat similar to the world’s collective hatred of carbs for the past decade or so, but at least that had some nutritional validity in terms of cutting down on simple sugars and decreasing your risk of diabetes. This fad of gluten, however, doesn’t have the same healthy leg to stand on.

As mentioned above, gluten is a general term for some of the proteins found in wheat that helps food maintain its shape, namely acting as a glue for certain substances (e.g., breads, pasta, sauces, cereal etc.). However, these proteins are not only in wheat, barley and rye products. Due to their binding nature and their ability to “fill space”, many manufacturers use gluten as a thickening or binding agent, so even if a product has nothing to do with wheat or cereal, it may still contain gluten (e.g., deli meats, pudding, pickles, soy sauce, and dry roasted nuts, among many others). Suffice to say, it has become a major part of our modern diet, particularly in the United States.

Now, for a bit of history, human beings have been eating gluten for tens of thousands of years, considering that wheat and other grains were some of our earliest agricultural products. Even so, there is a small part of the population for whom gluten really is dangerous, namely those who suffer from celiac disease. This isn’t a simple intolerance but an autoimmune disorder: in people with celiac disease, gluten triggers the immune system to attack and damage the inner lining of the small intestine, compromising the body’s ability to absorb nutrients. However, only about 1% of the population has this condition, and it’s believed that up to 3 in 4 cases go undiagnosed.

A few percent more of the population (estimates for non-celiac gluten sensitivity cluster around 6%, though self-reported figures run higher) get a stomach ache, bloating or a bit of nausea after eating gluten, even though they test negative for celiac disease and don’t have a wheat allergy. It’s a genuinely separate condition, but for the most part, in moderation, gluten doesn’t do lasting damage to their bodies.

The Rise Of The Gluten-Free Fad

Now, while only 1% of the population actually suffers from celiac disease, that number is roughly 4 times higher than it was 50 years ago. This isn’t just better detection, either. When Mayo Clinic researchers tested blood samples taken from US Air Force recruits in the 1950s and compared them with modern samples, they found the true prevalence really had climbed several-fold, hinting at some environmental trigger we don’t yet fully understand. Either way, gluten has come into the spotlight. A number of celebrities and trend-setters, Gwyneth Paltrow and Russell Crowe included, have praised a gluten-free diet to the masses, claiming that it can do wonders for the body, such as eliminate eczema, bloating, fatigue and stomach discomfort.

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For people with celiac disease, and for some of those who are “sensitive” to these wheat proteins, these claims may be true! For someone with celiac disease, gastric distress, bloating, cramping, diarrhea, nausea and vomiting can be avoided by eliminating gluten from the diet, along with other external manifestations such as the itchy, blistering rash known as dermatitis herpetiformis. However, if you don’t suffer from this disease, gluten is harmless to the body, so cutting it out of your diet won’t act as some sort of cure-all. Would you stop eating cheese because you heard that the lactose in it can make some people sick?

Despite that logic, it is difficult to put the genie back in the bottle, and that is precisely what we are seeing with the gluten-free fad. Bloggers and the Internet at large labeled gluten as the new enemy of health and wellness, and millions of people began to listen. Surveys suggest that somewhere between one in five and one in three Americans is now trying to eliminate or curtail their gluten intake, which has caused a massive boom in the gluten-free food industry.

The global market for gluten-free products has ballooned to roughly $22 billion a year, and it’s expected to keep climbing. (The US is the single biggest slice of that pie, though its share is a few billion dollars rather than the whole.) Even some foods that have never contained gluten, and are in no way connected to wheat or cereals, have slapped on a “naturally gluten-free” label just to get in on the action. Gluten-free products are also very expensive, often twice as much as a regular version of the same food, meaning that food manufacturing companies are in no rush to stem the trendy tide of GF.

For people with celiac disease, this huge increase in availability of gluten-free food is good news, but it has also perpetuated the idea that anyone can benefit from eating gluten-free. As the buzz behind gluten-free diets grows, it becomes harder for restaurants, manufacturers and retailers to service those people who truly need gluten-free products. At restaurants, it is not uncommon for a waiter to now ask, in response to a gluten-free request, “Is it an allergy or a preference?” The physical side effects of eating gluten for someone with celiac disease are quite serious, and can cause long-term damage to your digestive system, so making a mistake can ruin an evening and make you ill for days.

For those millions of other bandwagon-jumpers, however, believing that cutting out gluten will help them lose weight, avoid diabetes, prevent autism, and fight infertility… it simply isn’t true. This has been an incredibly well crafted marketing campaign, based around a demographic that actually does benefit from eliminating these proteins from their diet. The potential for a gluten “sensitivity” is what really caused this trend to explode, since self-diagnosis is en vogue and our fad-crazed society takes any chance it can to pursue, praise and promote any new fashionable diet – even if there is no legitimate reason to do so!

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Next time you’re sitting in a restaurant and are tempted to try going “gluten-free”, remember the real reasons behind this fad, and just order your pasta and beer, with a side of garlic bread, and be glad your body can efficiently process all the gluten in the foods you enjoy!

References (click to expand)
  1. Definition & Facts for Celiac Disease. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH
  2. Celiac Disease Foundation. celiac.org
  3. Singh, P., et al. (2018). Global Prevalence of Celiac Disease: Systematic Review and Meta-analysis. Clinical Gastroenterology and Hepatology
  4. Rubio-Tapia, A., et al. (2009). Increased Prevalence and Mortality in Undiagnosed Celiac Disease. Gastroenterology
  5. Cárdenas-Torres, F. I., et al. (2021). Non-Celiac Gluten Sensitivity: An Update. Medicina (NCBI / PMC)