Analysis of information sources in references of the Wikipedia article "Gluten-free diet" in English language version.
Similar proteins to the gliadin found in wheat exist as secalin in rye, hordein in barley, and avenins in oats and are collectively referred to as 'gluten.' Derivatives of these grains such as triticale and malt and other ancient wheat varieties such as spelt and kamut also contain gluten. The gluten found in all of these grains has been identified as the component capable of triggering the immune-mediated disorder, coeliac disease.
It is necessary to consider that oats include many varieties, containing various amino acid sequences and showing different immunoreactivities associated with toxic prolamins. As a result, several studies have shown that the immunogenicity of oats varies depending on the cultivar consumed. Thus, it is essential to thoroughly study the variety of oats used in a food ingredient before including it in a gluten-free diet.
For CD patients on GFD, the nutritional complications are likely to be caused by the poor nutritional quality of the GFPs mentioned above and by the incorrect alimentary choices of CD patients. (...) the limited choice of food products in the diet of children with CD induces a high consumption of packaged GFPs, such as snacks like biscuits. (..) It has been shown that some commercially available GFPs have a lower content of folates, iron and B vitamins or are not consistently enriched/fortified compared to their gluten containing counterparts. (...) Within the range of naturally GF foods, it is preferable to consume those rich in iron and folic acid, such as leafy vegetables, legumes, fish and meat.
The only treatment for CD, dermatitis herpetiformis (DH) and gluten ataxia is lifelong adherence to a GFD.
For both wheat allergy and coeliac disease the dietary avoidance of wheat and other gluten-containing cereals is the only effective treatment.
A recently proposed approach to NCGS diagnosis is an objective improvement of gastrointestinal symptoms and extra-intestinal manifestations assessed through a rating scale before and after GFD. Although a standardized symptom rating scale is not yet applied worldwide, a recent study indicated that a decrease of the global symptom score higher than 50% after GFD can be regarded as confirmatory of NCGS (Table 1) [53]. (…) After the confirmation of NCGS diagnosis, according to the previously mentioned work-up, patients are advized to start with a GFD [49].
The prescription of a GFD has been recommended for patients with IBS-like symptoms without histologic evidence of CD and who have positive IgA tTG antibodies or have the at-risk haplotypes DQ2 or DQ8.46 (...) Historically, a GFD was occasionally used in the management of multiple sclerosis (MS), because anecdotal reports indicated a positive effect (reversal of symptoms) of a GFD in MS patients. (…) what has been demonstrated so far is that a glutenfree vegan diet for 1 year significantly reduced disease activity and levels of antibodies to β-lactoglobulin and gliadin in patients with RA. (...) The beneficial effect of a GFD on diarrhea and weight gain in patients with HIV enteropathy has been demonstrated in a few case series. Treatment with a GFD has been observed to decrease the frequency of diarrhea and thus allow weight gain.84 (IBS=irritable bowel syndrome; RA=rheumatoid arthritis; GFD=gluten-free diet)
At this time, the studies attempting to treat symptoms of autism with diet have not been sufficient to support the general institution of a gluten-free or other diet for all children with autism. ...There may be a subgroup of patients who might benefit from a gluten-free diet, but the symptom or testing profile of these candidates remains unclear.
Incomplete elimination of gluten from the diet may be enough to abolish gastrointestinal symptoms with recovery of the small bowel mucosa but is insufficient to arrest the state of heightened immunological responsiveness resulting in neuronal injury. There is a group of patients with CD 'resistant' to gluten-free diet. This may reflect hypersensitivity to the minute amounts of gluten present in most 'gluten-free' products.
Some population groups seem to be especially wed to the gluten-free diet, with nearly 50% of 910 athletes (including world class and Olympic medalists) adhering to a gluten-free diet, mainly because of the perceived health and energy benefits.
One of the most controversial and highly debated discussions concerns the role of gluten in causing NCGS. Recent reports have indicated that gluten might not be the cause of NCGS, and some investigators still question whether NCGS as a real clinical entity. (...) Cereals such as wheat and rye, when consumed in normal quantities, are only minor sources of FODMAPs in the daily diet (Table 1). Therefore, gluten-containing grains are not likely to induce IBS exclusively via FODMAPs. In contrast, there is growing evidence that other proteins that are unique to gluten-containing cereals can elicit an innate immune response that leads to NCGS, raising a nomenclature issue. For this reason, wheat sensitivity, rather than gluten sensitivity, seems to be a more appropriate term, keeping in mind that other gluten-containing grains such as barley and rye also can trigger the symptoms.
Although intolerance to fructans and other FODMAPs may contribute to NCGS, they may only explain gastrointestinal symptoms and not the extraintestinal symptoms observed in NCGS patients, such as neurologic dysfunction, psychological disturbances, fibromyalgia, and skin rash.15 Therefore, it is unlikely that they are the sole cause of NCGS.
Furthermore, a role for the FODMAP (eg, fructans) component of wheat as the sole trigger for symptoms is somewhat doubtful, because many patients with NCWS report resolution of symptoms after the withdrawal of wheat and related cereals, while continuing to ingest vegetables and fruits with high FODMAP content in their diets.59 On the whole, it is conceivable that more than one culprit may be involved in symptoms of NCWS (as they are currently defined), including gluten, other wheat proteins, and FODMAPs.60–62
Wheat-dependent exercise-induced anaphylaxis (WDEIA) is a rare, but potentially severe food allergy exclusively occurring when wheat ingestion is accompanied by augmenting cofactors. (...) The most reliable prophylaxis of WDEIA is a gluten-free diet. In less severe cases, a strict limitation of wheat ingestion before exercise and avoidance of other cofactors may be sufficient.
Although there is clearly a fad component to the popularity of the GFD, there is also undisputable and increasing evidence for NCGS.
Similar proteins to the gliadin found in wheat exist as secalin in rye, hordein in barley, and avenins in oats and are collectively referred to as 'gluten.' Derivatives of these grains such as triticale and malt and other ancient wheat varieties such as spelt and kamut also contain gluten. The gluten found in all of these grains has been identified as the component capable of triggering the immune-mediated disorder, coeliac disease.
It is necessary to consider that oats include many varieties, containing various amino acid sequences and showing different immunoreactivities associated with toxic prolamins. As a result, several studies have shown that the immunogenicity of oats varies depending on the cultivar consumed. Thus, it is essential to thoroughly study the variety of oats used in a food ingredient before including it in a gluten-free diet.
For CD patients on GFD, the nutritional complications are likely to be caused by the poor nutritional quality of the GFPs mentioned above and by the incorrect alimentary choices of CD patients. (...) the limited choice of food products in the diet of children with CD induces a high consumption of packaged GFPs, such as snacks like biscuits. (..) It has been shown that some commercially available GFPs have a lower content of folates, iron and B vitamins or are not consistently enriched/fortified compared to their gluten containing counterparts. (...) Within the range of naturally GF foods, it is preferable to consume those rich in iron and folic acid, such as leafy vegetables, legumes, fish and meat.
The only treatment for CD, dermatitis herpetiformis (DH) and gluten ataxia is lifelong adherence to a GFD.
For both wheat allergy and coeliac disease the dietary avoidance of wheat and other gluten-containing cereals is the only effective treatment.
A recently proposed approach to NCGS diagnosis is an objective improvement of gastrointestinal symptoms and extra-intestinal manifestations assessed through a rating scale before and after GFD. Although a standardized symptom rating scale is not yet applied worldwide, a recent study indicated that a decrease of the global symptom score higher than 50% after GFD can be regarded as confirmatory of NCGS (Table 1) [53]. (…) After the confirmation of NCGS diagnosis, according to the previously mentioned work-up, patients are advized to start with a GFD [49].
The prescription of a GFD has been recommended for patients with IBS-like symptoms without histologic evidence of CD and who have positive IgA tTG antibodies or have the at-risk haplotypes DQ2 or DQ8.46 (...) Historically, a GFD was occasionally used in the management of multiple sclerosis (MS), because anecdotal reports indicated a positive effect (reversal of symptoms) of a GFD in MS patients. (…) what has been demonstrated so far is that a glutenfree vegan diet for 1 year significantly reduced disease activity and levels of antibodies to β-lactoglobulin and gliadin in patients with RA. (...) The beneficial effect of a GFD on diarrhea and weight gain in patients with HIV enteropathy has been demonstrated in a few case series. Treatment with a GFD has been observed to decrease the frequency of diarrhea and thus allow weight gain.84 (IBS=irritable bowel syndrome; RA=rheumatoid arthritis; GFD=gluten-free diet)
At this time, the studies attempting to treat symptoms of autism with diet have not been sufficient to support the general institution of a gluten-free or other diet for all children with autism. ...There may be a subgroup of patients who might benefit from a gluten-free diet, but the symptom or testing profile of these candidates remains unclear.
Incomplete elimination of gluten from the diet may be enough to abolish gastrointestinal symptoms with recovery of the small bowel mucosa but is insufficient to arrest the state of heightened immunological responsiveness resulting in neuronal injury. There is a group of patients with CD 'resistant' to gluten-free diet. This may reflect hypersensitivity to the minute amounts of gluten present in most 'gluten-free' products.
Some population groups seem to be especially wed to the gluten-free diet, with nearly 50% of 910 athletes (including world class and Olympic medalists) adhering to a gluten-free diet, mainly because of the perceived health and energy benefits.
One of the most controversial and highly debated discussions concerns the role of gluten in causing NCGS. Recent reports have indicated that gluten might not be the cause of NCGS, and some investigators still question whether NCGS as a real clinical entity. (...) Cereals such as wheat and rye, when consumed in normal quantities, are only minor sources of FODMAPs in the daily diet (Table 1). Therefore, gluten-containing grains are not likely to induce IBS exclusively via FODMAPs. In contrast, there is growing evidence that other proteins that are unique to gluten-containing cereals can elicit an innate immune response that leads to NCGS, raising a nomenclature issue. For this reason, wheat sensitivity, rather than gluten sensitivity, seems to be a more appropriate term, keeping in mind that other gluten-containing grains such as barley and rye also can trigger the symptoms.
Although intolerance to fructans and other FODMAPs may contribute to NCGS, they may only explain gastrointestinal symptoms and not the extraintestinal symptoms observed in NCGS patients, such as neurologic dysfunction, psychological disturbances, fibromyalgia, and skin rash.15 Therefore, it is unlikely that they are the sole cause of NCGS.
Furthermore, a role for the FODMAP (eg, fructans) component of wheat as the sole trigger for symptoms is somewhat doubtful, because many patients with NCWS report resolution of symptoms after the withdrawal of wheat and related cereals, while continuing to ingest vegetables and fruits with high FODMAP content in their diets.59 On the whole, it is conceivable that more than one culprit may be involved in symptoms of NCWS (as they are currently defined), including gluten, other wheat proteins, and FODMAPs.60–62
Wheat-dependent exercise-induced anaphylaxis (WDEIA) is a rare, but potentially severe food allergy exclusively occurring when wheat ingestion is accompanied by augmenting cofactors. (...) The most reliable prophylaxis of WDEIA is a gluten-free diet. In less severe cases, a strict limitation of wheat ingestion before exercise and avoidance of other cofactors may be sufficient.
Although there is clearly a fad component to the popularity of the GFD, there is also undisputable and increasing evidence for NCGS.
It is necessary to consider that oats include many varieties, containing various amino acid sequences and showing different immunoreactivities associated with toxic prolamins. As a result, several studies have shown that the immunogenicity of oats varies depending on the cultivar consumed. Thus, it is essential to thoroughly study the variety of oats used in a food ingredient before including it in a gluten-free diet.
For CD patients on GFD, the nutritional complications are likely to be caused by the poor nutritional quality of the GFPs mentioned above and by the incorrect alimentary choices of CD patients. (...) the limited choice of food products in the diet of children with CD induces a high consumption of packaged GFPs, such as snacks like biscuits. (..) It has been shown that some commercially available GFPs have a lower content of folates, iron and B vitamins or are not consistently enriched/fortified compared to their gluten containing counterparts. (...) Within the range of naturally GF foods, it is preferable to consume those rich in iron and folic acid, such as leafy vegetables, legumes, fish and meat.
Incomplete elimination of gluten from the diet may be enough to abolish gastrointestinal symptoms with recovery of the small bowel mucosa but is insufficient to arrest the state of heightened immunological responsiveness resulting in neuronal injury. There is a group of patients with CD 'resistant' to gluten-free diet. This may reflect hypersensitivity to the minute amounts of gluten present in most 'gluten-free' products.
Some population groups seem to be especially wed to the gluten-free diet, with nearly 50% of 910 athletes (including world class and Olympic medalists) adhering to a gluten-free diet, mainly because of the perceived health and energy benefits.
Furthermore, a role for the FODMAP (eg, fructans) component of wheat as the sole trigger for symptoms is somewhat doubtful, because many patients with NCWS report resolution of symptoms after the withdrawal of wheat and related cereals, while continuing to ingest vegetables and fruits with high FODMAP content in their diets.59 On the whole, it is conceivable that more than one culprit may be involved in symptoms of NCWS (as they are currently defined), including gluten, other wheat proteins, and FODMAPs.60–62
The only treatment for CD, dermatitis herpetiformis (DH) and gluten ataxia is lifelong adherence to a GFD.
For both wheat allergy and coeliac disease the dietary avoidance of wheat and other gluten-containing cereals is the only effective treatment.
Wheat-dependent exercise-induced anaphylaxis (WDEIA) is a rare, but potentially severe food allergy exclusively occurring when wheat ingestion is accompanied by augmenting cofactors. (...) The most reliable prophylaxis of WDEIA is a gluten-free diet. In less severe cases, a strict limitation of wheat ingestion before exercise and avoidance of other cofactors may be sufficient.