There is plenty of basic information on dietary therapy throughout the Internet. If you are interested in the latest medical findings you should consult the global database PUBMED of the medical publications. Below are examples of IBS-related studies:
Different diets during pregnancy might have an impact on the health, reflected in the birthweight of newborns. The consumption of fruits and vegetables during pregnancy and the relationship with newborn health status have been studied by several authors. However, these studies have shown inconsistent results. We assessed whether certain foods were related to the risk of small for gestational age (SGA). A matched by age and hospital 1:1 case-control study of 518 pairs of pregnant Spanish women in five hospitals was conducted. The cases were women with an SGA newborn at delivery. The control group comprised women giving birth to babies adequate for gestational age (AGA). Mothers who gave birth to babies large for gestational age (LGA) were excluded. Data were gathered concerning demographic characteristics, socioeconomic status, toxic habits and diet. A food frequency questionnaire (FFQ) comprising 137 items was completed by all participants. The intake of vegetables, legumes and fruits was categorized in quintiles. Crude values and and adjusted odds ratios (AORs) and 95% confidence intervals (CIs) were estimated using conditional logistic regression. The variables for adjustment were as follows: preeclampsia, education, smoking, weight gain per week during pregnancy, fish intake and previous preterm/low birthweight newborns. Total pulse intake showed an inverse association with the risk of SGA. Women with an intake of fruits above 420 g/day, compared with women in Q1 showed a decreased risk of SGA. The total consumption of vegetables was not associated with the risk of SGA. The intake of selenium was assessed: a protective association was observed for Q3-5; a daily intake above 60 μg was associated with a lower risk of SGA. Fruits, pulses and selenium reduce the risk of SGA in Spanish women.
KEYWORDS: Fruits, Legumes, Maternal diet, Selenium, Small for gestational age, Vegetables
Coffee and tea constituents have shown several anti-carcinogenic activities in cellular and animal studies, including against thyroid cancer (TC). However, epidemiological evidence is still limited and inconsistent. Therefore, we aimed to investigate this association in a large prospective study. The study was conducted in the EPIC (European Prospective Investigation into Cancer and Nutrition) cohort, which included 476,108 adult men and women. Coffee and tea intakes were assessed through validated country-specific dietary questionnaires. During a mean follow-up of 14 years, 748 first incident differentiated TC cases were identified. Coffee consumption was not associated either with total differentiated TC risk or with the risk of TC subtypes. Tea consumption was not associated with the risk of total differentiated TC and papillary tumor, whereas an inverse association was found with follicular tumor risk, but this association was based on a sub-analysis with a small number of cancer cases. In this large prospective study, coffee and tea consumptions were not associated with TC risk.
KEYWORDS: Coffee, Cohort, EPIC, Intake, Tea, Thyroid cancer
The gastrointestinal (GI) tract is the residence of trillions of microorganisms that include bacteria, archaea, fungi and viruses. The collective genomes of whole microbial communities (microbiota) integrate the gut microbiome. Up to 100 genera and 1000 distinct bacterial species were identified in digestive tube niches. Gut microbiomes exert permanent pivotal functions by promoting food digestion, xenobiotic metabolism and regulation of innate and adaptive immunological processes. Proteins, peptides and metabolites released locally and at distant sites trigger many cell signalling and pathways. This intense crosstalk maintains the host-microbial homeostasis. Diet, age, diet, stress and diseases cause increases or decreases in relative abundance and diversity bacterial specie of GI and other body sites. Studies in animal models and humans have shown that a persistent imbalance of gut's microbial community, named dysbiosis, relates to inflammatory bowel diseases (IBD), irritable bowel syndrome (IBS), diabetes, obesity, cancer, cardiovascular and central nervous system disorders. Notably specific bacterial communities are promising clinical target to treat inflammatory and infectious diseases. In this context, intestinal microbiota transplantation (IMT) is one optional treatment for IBD, in particular to patients with recurrent Clostridium difficile-induced pseudo-membrane colitis. Here we discuss on recent discoveries linking whole gut microbiome dysbiosis to metabolic and inflammatory diseases and potential prophylactic and therapeutic applications of faecal and phage therapy, probiotic and prebiotic diets.
KEYWORDS: Faecal therapy, Metabolic and gastrointestinal diseases, Microbiomes, Prebiotics, Probiotics
This paper summarizes the contents of a consensus document on exclusion diets in irritable bowel disease that was developed by a task force from SEPD, FEAD, SENPE, FESNAD, SEÑ, SEEN, SEGHNP, SEDCA and ADENYD. The complete document is available at the FEAD and in SENPE websites. Irritable bowel syndrome is a highly prevalent functional digestive disorder where, in addition to drugs, therapy includes diet and acquisition of healthy habits as basic elements for its control. In order to facilitate dietary counseling for these patients in daily practice, the present consensus document on the role of exclusion diets was developed. To this end, consensus opinions were collected from various experts in the national scientific societies aiming at establishing recommendations applicable to the health care of patients with irritable bowel syndrome.
Persons with bulimia nervosa (BN) or binge eating disorder (BED) have an elevated risk of non-communicable diseases (NCDs). However, lowering this risk is rarely addressed in standard cognitive-behavioral treatment (CBT). We aimed to compare CBT with an intervention combining physical exercise and dietary therapy (PED-t), and hypothesized that the PED-t would do better than CBT in lowering the risk of NCD both initially and longitudinally. In this study, 164 women with bulimia nervosa or binge eating disorder were randomly assigned to 16-weeks of outpatient group therapy with either PED-t or CBT. Body composition (BC) was measured by dual-energy X-ray absorptiometry. Measures of physical fitness (VO₂peak and one repetition maximum in squats, bench press, and seated row) were also recorded. All measurements were completed baseline, post-treatment, and at 6- and 12-month follow-ups, respectively. Our results showed that PED-t improved more than CBT on mean absolute Vo2peak; 57,2 mL post-treatment. There were small to medium long-term differences in 1RM after PED-t compared to CBT. BC deteriorated in both groups during follow-up. Neither the PED-t nor the CBT lowered the risk for NCDs. Clearly, other approaches need to be considered to promote physical fitness and lower the risk of NCDs among individuals with BN and BED.
KEYWORDS: binge eating disorder, bulimia, eating disorders, exercise, nutrition, obesity, physical activity, physical fitness, visceral adipose tissue
It has been suggested that sourdough fermented products have beneficial health effects. Fungal proteases and selected sourdough lactic acid bacteria were used to produce wheat bread and pasta with a reduced-gluten content. Fermentable oligo-, di- and mono- saccharides and polyols and amylase/trypsin inhibitors were also evaluated. The sensorial features of new products were similar to traditional ones. The efficacy of these new products in reducing the severity of symptoms in Irritable Bowel Syndrome (IBS) patients were compared to traditional bread and pasta using a randomized, crossover-controlled trial. While on a strict gluten-free diet, patients were randomized to consume a reduced- or normal-gluten diet for 2weeks; then, patients from both arms started the wash-out period of one week, and subsequently started the final 2-week period on a normal or reduced-gluten diet. Compared to normal-gluten content, the administration of a reduced-gluten content diet resulted in a decrease of the Visual Analogue Scale score, while no differences were found in the IBS-Severity Score, Hospital Anxiety and Depression Scale, and IBS-Quality of Life. Data herein reported are novel encouraging findings that should spur a new avenue of research aiming to develop products specifically designed for IBS patients.
KEYWORDS: diet, gluten, irritable bowel syndrome, lactic acid bacteria, pasta, wheat bread
While many studies have characterized the inflammatory disposition of adipose tissue (AT) during obesity, far fewer have dissected how such inflammation resolves during the process of physiological weight loss. In addition, new immune cells, such as the eosinophil, have been discovered as part of the AT immune cell repertoire. We have therefore characterized how AT eosinophils, associated eosinophilic inflammation, and remodeling processes, fluctuate during a dietary intervention in obese mice. Similar to previous reports, we found that obesity induced by high-fat diet feeding reduced the AT eosinophil content. However, upon switching obese mice to a low fat diet, AT eosinophils were restored to lean levels as mice reached the body weight of controls. The rise in AT eosinophils during dietary weight loss was accompanied by reduced macrophage content and inflammatory expression, upregulated tissue remodeling factors, and a more uniformly distributed AT vascular network. Additionally, we show that eosinophils of another metabolically relevant tissue, the liver, did not oscillate with either dietary weight gain or weight loss. This study shows that eosinophil content is differentially regulated among tissues during the onset and resolution of obesity. Furthermore, AT eosinophils correlated with AT remodeling processes during weight loss and thus may play a role in reestablishing AT homeostasis.
KEYWORDS: Adipose tissue, eosinophils, inflammation, macrophages, obesity, weight loss
The efficacy and acceptance of a low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) diet in Asian adults with irritable bowel syndrome (IBS) remain uncertain. We aimed to describe our early experience in a single center with a dedicated gastroenterology dietetic service. Consecutive patients with IBS referred to our dedicated Dietetic Gastroenterology Clinic between February 2016 and May 2016 were screened. A low FODMAP diet was instituted as per standard protocol. Data on demographic and clinical variables were obtained from patients' records and prospective telephone interviews. A total of 16 patients, with a median age of 67 ± 13.57 years; female gender n = 10; ethnicity: Chinese n = 8, Indian n = 5, and Malay n = 3 with IBS, were included in the study. Compliance with the low FODMAP diet was complete in 8 of 16 patients, partial in 4 of 16, and 4 of 16 could not comply with the diet at all. Improvement in symptoms were reported in 11 of 16 patients. Among patients who complied (complete/partial) with the low FODMAP diet, predominant symptom improvement was reported as follows: abdominal pain 3 of 5, abdominal bloating/distension 7 of 10, and flatulence 7 of 8. Patients with the IBS-D subtype appeared to have the greatest improvement in stool consistency. Based on our pilot observational study of a relatively small sample of Asian IBS patients, compliance with a low FODMAP diet appears to be low. Further larger studies are required to verify our observation.
KEYWORDS: Asia, early experience, irritable bowel syndrome, low fermentable oligosaccharides, disaccharides, monosaccharides and polyols diet, treatment
The role of hormonal factors in lymphoid neoplasms etiology remains unclear. Previous studies have yielded conflicting results, been underpowered to assess many lymphoma subtypes, or lacked detailed information on relevant exposures. Within the European Prospective Investigation into Cancer and Nutrition cohort, we analyzed comprehensive data collected at baseline on reproductive factors and exogenous hormone use among 343,458 women, including 1,427 incident B-cell non-Hodgkin lymphomas (NHL) and its major subtypes identified after a mean follow-up of 14 years. We estimated hazard ratios and 95% confidence intervals using multivariable proportional hazards modeling. Overall, we observed no statistically significant associations between parity, age at first birth, breastfeeding, oral contraceptive use or ever use of postmenopausal hormone therapy and risk of B-cell NHL or its subtypes. Women who had a surgical menopause had a 51% higher risk of B-cell NHL compared with natural menopause. Given that this result may be due to chance, our results provide little support for the hypothesis that sex hormones play a role in lymphomagenesis.
Irritable bowel syndrome (IBS) is present in patients with symptoms of chronic abdominal pain and altered bowel habits but no identifiable organic etiology. Rome IV classification groups patients based on predominant stool pattern. Low-FODMAP diets have been helpful in providing symptom relief, as have cognitive behavioral and mind-body techniques that help patients manage symptoms. Targeted symptomatic relief for the patient's predominant symptoms provides relief in addition to effective older medications that are inexpensive and reliable. Newer treatments for IBS-D, such as eluxadoline, and IBS-C, with linaclotide, lubiprostone, plecanatide, also can provide durable relief.
KEYWORDS: Constipation, Diarrhea, Irritable bowel syndrome (IBS), Rome criteria
We have only recently begun to understand how alterations of the intestinal microbial ecosystem lead to the disruption of host-microbial interactions and are associated with diseases, including functional gastrointestinal disorders such as irritable bowel syndrome (IBS). Although we are still far from understanding the human microbiome, gut microbiota is already a therapeutic target. Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit to the host and may represent a therapeutic option for diseases characterized by dysbiosis such as IBS. Meta-analyses suggest that probiotics provide a therapeutic gain over placebo on global symptoms with a high safety profile in IBS patients. However, the mechanisms by which they provide benefit in IBS remain virtually unknown. In this issue of Neurogastroenterology and Motility, BIO-25, a multispecies probiotic, did not significantly modify the composition of the fecal microbiota, but interestingly, patients with specific basal features of the intestinal microbial ecosystem improved with treatment. Based on these data, it is tantalizing to speculate that microbiota composition serves as a predictor of the response to probiotic intervention. This mini-review addresses unresolved issues related to mechanisms through which probiotics may exert their beneficial effects, the biological, as well as clinical predictors of favorable outcomes in IBS and finally considers possible new directions for future studies.
KEYWORDS: diet, irritable bowel syndrome, microbiota, probiotics
Our aim was to evaluate the intake of foods containing fermentable oligo/di/mono-saccharides and polyols (FODMAP) as a possible factor that induces gastrointestinal symptoms in treated celiac disease (CD) patients. We collected seven-day weighed food records for 104 CD patients and 91 healthy volunteers. All evaluated food items were from sources with high and low content of FODMAP, which were divided into cereals and sweets, sweeteners and soft drinks, fruits, dried fruits, and vegetables. Nutrient intake was calculated using the food database of the European Institute of Oncology. The symptoms reported were assessed by a Rome IV Irritable bowel syndrome (IBS) diagnostic questionnaire and by specific questions for the evaluation of functional gastrointestinal disorders (FGIDs). The 12% of CD patients met IBS symptoms criteria as opposed to 6% of controls and 27% of patients reported FGIDs symptoms vs. 22% of healthy controls. The intake by CD patients was significantly higher than healthy volunteers for: sweeteners and sugars with low content of FODMAP, fruits, dried fruits, and vegetables high in FODMAP and low in FODMAP when compared to controls. CD patients had a lower intake of cereals and sweets with a high content of FODMAP. Healthy volunteers consumed significantly higher alcoholic beverages and fats high in FODMAP. The mean daily intake of other food categories did not differ between both groups. Even though CD patients had a low intake of gluten-free cereals high in FODMAP, they still consumed a significant amount of fruits and vegetables high in FODMAP. The clinical effect of a concomitant gluten-free diet and low-FODMAP diet should be prospectively evaluated as a supportive therapy in CD patients.
KEYWORDS: FODMAP intake, celiac disease, gastrointestinal symptoms, gluten-free diet, irritable bowel syndrome
Functional disorders are common, with irritable bowel syndrome (IBS) being the commonest and most extensively evaluated functional bowel disorder. It is therefore paramount that effective therapies are available to treat this common condition. Diet appears to play a pivotal role in symptom generation in IBS, with a recent interest in the role of dietary therapies in IBS. Over the last decade, there has been a substantial increase in awareness of the gluten-free diet (GFD), with a recent focus of the role of a GFD in IBS. There appears to be emerging evidence for the use of a GFD in IBS, with studies demonstrating the induction of symptoms following gluten in patients with IBS. However, there are questions with regards to which components of wheat lead to symptom generation, as well as the effect of a GFD on nutritional status, gut microbiota and long-term outcomes. Further studies are required, although the design of dietary studies remain challenging. The implementation of a GFD should be performed by a dietitian with a specialist interest in IBS, which could be achieved via the delivery of group sessions.
KEYWORDS: gluten, irritable bowel syndrome, low FODMAP diet, non-coeliac gluten sensitivity, wheat
The gut microbiota is altered in irritable bowel syndrome (IBS), and microbiota manipulations by diet or antibiotics can reduce its symptoms. As fecal microbiota transfer (FMT) in IBS is still controversial, we investigated the clinical and side effects of FMT in a cohort of IBS patients with recurrent, treatment refractory symptoms, and studied gut microbiota signatures. Using an observational, prospective study design, we applied FMTs from one unrelated, healthy donor to 13 IBS patients. Fecal samples of patients and the donor were analyzed by 16S ribosomal RNA amplicon sequencing. On a symptom level, primarily abdominal pain symptoms were reduced after FMT, and no adverse effects were observed. Studying the microbiome, we found an increase in alpha diversity and changes in the composition of the gut microbiota after FMT. Beta diversity changes after FMT were prominent in a subset of 7 patients with microbiota profiles coming very close to the donor. These patients also showed most pronounced visceral pain reduction. The relative abundance of Akkermansia muciniphila was inversely correlated with pain reduction in our cohort. Although exploratory in nature and with a pilot character, this study highlights the potential role of microbiota manipulations in IBS and describes a novel association of intestinal Akkermansia and pain modulation.
KEYWORDS: Abdominal pain, Akkermansia muciniphila, Fecal microbiota transfer, Gut microbiome, Irritable bowel syndrome
This paper summarizes the contents of a consensus document on exclusion diets in irritable bowel disease that was developed by a task force from SEPD, FEAD, SENPE, FESNAD, SEÑ, SEEN, SEGHNP, SEDCA and ADENYD. The complete document is available at the SEPD website. Irritable bowel syndrome is a highly prevalent functional digestive disorder where, in addition to drugs, therapy includes diet and acquisition of healthy habits as basic elements for its control. In order to facilitate dietary counseling for these patients in daily practice, the present consensus document on the role of exclusion diets was developed. To this end, consensus opinions were collected from various experts in the national scientific societies aiming at establishing recommendations applicable to the health care of patients with irritable bowel syndrome.
Background: There is evidence that digestive motor disorders are frequently present in untreated celiac disease (CD) patients. Similarly, non-celiac gluten sensitivity (NCGS) can be associated with gut motor disorders. In both cases, gut dysmotility can improve or be completely reversed with a gluten-free diet (GFD). Methods: A literature search for motility disorders in CD and NCGS patients was carried out using the online databases PubMed, Medline and Cochrane. Results: Esophageal, gastric, small bowel and gallbladder motor disorders are common in both children and adults with CD. Although the clinical consequences of these disorders are not clearly defined, gastric dysfunction could affect drug absorption and metabolism in the thyroid and neurological conditions associated with CD. The impact of a GFD on motility disorders is, however, controversial. No systematic studies are available on NCGS. NCGS frequently overlaps with irritable bowel syndrome (IBS) and similar pathophysiological mechanisms may be hypothesized. Conclusions: Mucosal damage may affect gut motility in untreated CD through perturbation of hormonal and neuro-immunomodulatory regulation. A persistent low-grade mucosal inflammation could explain the cases of persistent motor disorders despite a GFD. Further studies are needed to definitely assess the role of gut motor disorders in NCGS.
KEYWORDS: celiac disease, gluten-free diet, gut motility, non-celiac gluten sensitivity
Background: Eosinophilic esophagitis (EoE) in patients referred to allergists can be difficult to manage. This is due to multiple factors, including overlaps in presentation with gastroesophageal reflux disease and proton-pump inhibitor responsive eosinophilia, remaining uncertainties regarding the role of different forms of allergy testing, and a variety of patient adherence issues. Objective: To highlight, in an objectively studied fashion, complications that can be faced when managing patients referred for EoE. Methods: We conducted a telephone survey of 78 patients (pediatric and adult) who were referred to our academic allergy clinic for EoE. The survey focused on patients' perspectives regarding their symptoms and treatments. We then conducted a chart review to determine if there had been a proton-pump inhibitor (PPI) trial before diagnosis, and we compared patient responses with documented allergy test results, treatment plans, and biopsy results. Results: Only 22 of 78 patients had a ≥8-week PPI trial before diagnosis and/or referral. There was considerable variability in the type of allergy testing done for patients, and how the results were used to guide therapy. More than one-third of the patients reported being on a different treatment regimen (PPI, swallowed steroid, and/or diet) than planned, and the majority of patients on dietary therapy reported being on a different diet than planned. Also, nearly half of the adult patients did not have follow-up biopsies done despite recommendations for this. Conclusion: We identified several challenges in EoE management, including potential misdiagnosis or overtreatment, lack of standardization in testing and dietary recommendations, and patient adherence issues. We hope this information will prompt increased vigilance for these issues and promote solutions when needed.
Wheat- and gluten-containing products are often blamed for triggering a wide range of gastrointestinal symptoms, and this has fueled demand for gluten-free products worldwide. The best studied 'gluten intolerance' is coeliac disease, an auto-immune disease that affects the small intestine. Coeliac disease occurs in 1% of the population and requires strict, life-long avoidance of gluten-containing foods as the only medical treatment. There is a larger group of individuals who report a wide-range of gastrointestinal symptoms that respond well to a 'gluten-free diet', but who do not have coeliac disease - so called 'non-coeliac gluten sensitivity (NCGS)'. The team at Monash University has identified other factors in gluten-containing foods that may be responsible for symptoms in this group of individuals with so-called, NCGS. We have evidence that certain poorly absorbed short chain carbohydrates (called FODMAPs) present in many gluten-containing food products, induce symptoms of abdominal pain, bloating, wind and altered bowel habit (associated with irritable bowel syndrome, IBS). Our research has shown that FODMAPs, and not gluten, triggered symptoms in NCGS. Going forward, there are great opportunities for the food industry to develop low FODMAP products for this group, as choice of grain variety and type of food processing technique can greatly reduce the FODMAP levels in foods. The use of sourdough cultures in bread making has been shown to reduce the quantities of FODMAPs (mostly fructan), resulting in bread products that are well tolerated by patients with IBS. Greater interaction between biomedical- and food-scientists will improve understanding about the clinical problems many consumers face, and lead to the development of food products that are better tolerated by this group.
BACKGROUND Phenylketonuria (PKU) is an inborn error of metabolism caused by mutations in the phenylalanine hydroxylase (PAH) gene. When untreated, PKU leads to a significant intellectual deficiency. Although early initiation of dietary therapy allows normal cognitive development, low adherence to treatment may result in neuropsychological deficits, including attention problems. This study was performed to evaluate emotional and behavioral problems in early-treated children and adolescents with PKU using the Child Behavior Checklist - CBCL/6-18 answered by parents. MATERIAL AND METHODS The study included 36 PKU patients. The mean scores of internalizing, externalizing, and total problems, syndrome scales, and DSM-IV-oriented scales of patients were compared with those of controls. An analysis to evaluate the importance of adherence to treatment and presence of intellectual disability was also performed. RESULTS There were no significant differences between patients and controls for almost all CBCL/6-18 scales, with the exception of the Attention Problem Scale - CBCL-APS. The mean (±SD) of the CBCL-APS scores of patients was considerably higher than the mean of the controls, but not different from the mean of a matched control subsample. The difference between the mean of the scores of DSM-IV/ADHD scale of patients and controls was not significant. Non-adherence to treatment and intellectual disability had a negative impact on both CBCL-APS and DSM-IV/ADHD scale scores. CONCLUSIONS Our findings indicate a significant prevalence of parents' complaints of attention problems and hyperactivity in non-adherent to treatment and intellectually low performing patients with PKU.
Breast milk (BM) hormones have been hypothesised as a nutritional link between maternal and infant metabolic health. This study aimed to evaluate hormone concentrations in BM of women with and without gestational diabetes mellitus (GDM), and the relationship between maternal factors, BM hormones and infant growth. We studied ninety-six nulliparous women with and without GDM and their exclusively breastfed term singletons. Women with GDM received dietary therapy or insulin injection for euglycaemia during pregnancy. Hormone concentrations in BM, maternal BMI and infant growth were longitudinally evaluated on postnatal days 3, 42 and 90. Mothers with GDM had decreased concentrations of adiponectin and ghrelin and increased concentration of insulin in BM. Maternal BMI was positively associated with adiponectin, leptin and insulin concentrations, and inversely associated with ghrelin concentration in BM. Among the four hormones, adiponectin was inversely associated with infant growth in both the GDM and healthy groups. Maternal BMI and GDM are important determinants of BM hormone concentrations. Milk-borne adiponectin is determined by maternal metabolic status and plays an independent down-regulating role in early infant growth.
KEYWORDS: BM breast milk, GDM gestational diabetes mellitus, Breast milk, Gestational diabetes mellitus, Hormones, Infant growth