scholarly journals The Alignment of Dietary Intake and Symptom-Reporting Capture Periods in Studies Assessing Associations between Food and Functional Gastrointestinal Disorder Symptoms: A Systematic Review

Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2590 ◽  
Author(s):  
Kerith Duncanson ◽  
Tracy Burrows ◽  
Simon Keely ◽  
Michael Potter ◽  
Gayatri Das ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Dietary Assessment ◽  
Gastrointestinal Symptoms ◽  
Gastrointestinal Disorder ◽  
Developed Countries ◽  
Functional Gastrointestinal Disorder ◽  
Symptom Reporting ◽  
Food Ingestion ◽  
Dietary Assessment Methods ◽  
Irritable Bowel

Food ingestion is heavily implicated in inducing symptoms of irritable bowel syndrome (IBS) and functional dyspepsia (FD), which affect over one-third of adults in developed countries. The primary aim of this paper was to assess the alignment of dietary assessment and symptom-reporting capture periods in diet-related studies on IBS or FD in adults. Secondary aims were to compare the degree of alignment, validity of symptom-reporting tools and reported significant associations between food ingestion and symptoms. A five-database systematic literature search resulted in 40 included studies, from which data were extracted and collated. The food/diet and symptom capture periods matched exactly in 60% (n = 24/40) of studies, overlapped in 30% (n = 12/40) of studies and were not aligned in 10% (n = 4/40) of studies. Only 30% (n = 12/40) of studies that reported a significant association between food and global gastrointestinal symptoms used a validated symptom-reporting tool. Of the thirty (75%) studies that reported at least one significant association between individual gastrointestinal symptoms and dietary intake, only four (13%) used a validated symptom tool. Guidelines to ensure that validated symptom-reporting tools are matched with fit-for-purpose dietary assessment methods are needed to minimise discrepancies in the alignment of food and symptom tools, in order to progress functional gastrointestinal disorder research.

scholarly journals Nutritional Assessment in Inflammatory Bowel Disease (IBD)—Development of the Groningen IBD Nutritional Questionnaires (GINQ)

Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2739 ◽  
Author(s):  
Vera Peters ◽  
Behrooz Z Alizadeh ◽  
Jeanne HM de Vries ◽  
Gerard Dijkstra ◽  
Marjo JE Campmans-Kuijpers
Keyword(s):  
Inflammatory Bowel Disease ◽  
Dietary Intake ◽  
Bowel Disease ◽  
Dietary Habits ◽  
Nutritional Assessment ◽  
Dietary Assessment ◽  
Dietary Guidelines ◽  
Assessment Tools ◽  
Dietary Assessment Methods ◽  
Inflammatory Bowel

Diet plays a key role in the complex etiology and treatment of inflammatory bowel disease (IBD). Most existing nutritional assessment tools neglect intake of important foods consumed or omitted specifically by IBD patients or incorporate non-Western dietary habits, making the development of appropriate dietary guidelines for (Western) IBD patients difficult. Hence, we developed a food frequency questionnaire (FFQ), the Groningen IBD Nutritional Questionnaires (GINQ-FFQ); suitable to assess dietary intake in IBD patients. To develop the GINQ-FFQ, multiple steps were taken, including: identification of IBD specific foods, a literature search, and evaluation of current dietary assessment methods. Expert views were collected and in collaboration with Wageningen University, division of Human Nutrition and Health, this semi-quantitative FFQ was developed using standard methods to obtain a valid questionnaire. Next, the GINQ-FFQ was digitized into a secure web-based environment which also embeds additional nutritional and IBD related questions. The GINQ-FFQ is an online self-administered FFQ evaluating dietary intake, taking the previous month as a reference period. It consists of 121 questions on 218 food items. This paper describes the design process of the GINQ-FFQ which assesses dietary intake especially (but not exclusively) in IBD patients. Validation of the GINQ-FFQ is needed and planned in the near future.

scholarly journals Irritable Bowel Syndrome between Molecular Approach and Clinical Expertise—Searching for Gap Fillers in the Oxidative Stress Way of Thinking

Medicina ◽  
2020 ◽  
Vol 56 (1) ◽  
pp. 38 ◽  
Author(s):  
Ioana-Miruna Balmus ◽  
Ovidiu-Dumitru Ilie ◽  
Alin Ciobica ◽  
Roxana-Oana Cojocariu ◽  
Carol Stanciu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Irritable Bowel Syndrome ◽  
Gastrointestinal Disorder ◽  
Functional Gastrointestinal Disorder ◽  
Clinical Expertise ◽  
Related Disorder ◽  
Genetic Features ◽  
Exogenous Factors ◽  
Irritable Bowel ◽  
Patient Studies

Irritable bowel syndrome (IBS) remains to date an intriguing functional gastrointestinal disorder. Recent studies described a multitude of exogenous factors that work together in IBS, gradually impairing intestinal lining cellular metabolism, including oxidative status balance, with or without a genetic background. Although the current biomarkers support the differentiation between IBS subtypes and other functional gastrointestinal disorder, they are mostly non-specific, referring to clinical, biochemical, and inflammatory imbalances. Since IBS could be also the result of deficient signaling pathways involving both gastrointestinal secretion and neuro-vegetative stimulation, IBS makes no exception from the oxidative hypothesis in the pathological mechanisms. Regarding the oxidative stress implication in IBS, the previous research efforts showed controversial results, with some animal models and patient studies reporting clear oxidative imbalance both on systemic and local levels, but still with no concrete evidence to point to a direct correlation between oxidative stress and IBS. Additionally, it seems that a major role could be also attributed to gut microbiota and their ability to shape our bodies and behaviors. Moreover, the genetic features study in IBS patients showed that several genetic similarities point to a possible correlation of IBS with affective spectrum disorders. Thus, we focus here the discussion on the assumption that IBS could in fact be more likely a stress-related disorder rather than a gastrointestinal one.

scholarly journals Validation of a FFQ to estimate the intake of PUFA using plasma phospholipid fatty acids and weighed foods records

2007 ◽  
Vol 97 (3) ◽  
pp. 561-568 ◽  
Author(s):  
S. A. McNaughton ◽  
M. C. Hughes ◽  
G. C. Marks
Keyword(s):  
Fatty Acids ◽  
Dietary Intake ◽  
Controlled Trial ◽  
Dietary Assessment ◽  
Plasma Phospholipid ◽  
Docosapentaenoic Acid ◽  
Phospholipid Fatty Acids ◽  
Food Record ◽  
Dietary Assessment Methods ◽  
Randomised Controlled

Due to the growing knowledge about the role of specific fatty acids in health and disease, dietary intake measurements of individual fatty acids or classes of fatty acids are becoming increasingly important. The objective of this study was to evaluate the ability of the Nambour FFQ to estimate intakes of specific fatty acids, particularly PUFA. The study population was a sub-sample of adult participants in a randomised controlled trial of β-carotene and sunscreen in the prevention of skin cancer (n43). Dietary intake was assessed by a self-administered FFQ and a weighed food record (WFR). Non-fasting blood samples were collected and analysed for plasma phospholipid fatty acids. Median intakes on the FFQ were generally higher than the WFR except for then-3 PUFA groups, where the FFQ estimated higher intakes. Correlations between the FFQ and WFR were moderate (r0·32–0·59) except fortransfatty acids (r0·03). Correlations between each of the dietary assessment methods and the plasma phospholipids were poor for all fatty acids other than the PUFA. Using the methods of triads approach, the FFQ validity coefficients for totaln-3 fatty acids, total long chainn-3 fatty acids, EPA, arachidonic acid, docosapentaenoic acid and DHA were 0·50, 0·63, 0·45 and 0·62 and 0·62, respectively. For most fatty acids, the FFQ adequately estimates group mean fatty acid intakes and can adequately rank individuals; however, the ability of this FFQ to estimatetransfatty acids was poor.

scholarly journals Dietary assessment methods for micronutrient intake: a systematic review on vitamins

2009 ◽  
Vol 102 (S1) ◽  
pp. S10-S37 ◽  
Author(s):  
Patricia Henríquez-Sánchez ◽  
Almudena Sánchez-Villegas ◽  
Jorge Doreste-Alonso ◽  
Adriana Ortiz-Andrellucchi ◽  
Karina Pfrimer ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Quality Index ◽  
Dietary Assessment ◽  
Correlation Coefficients ◽  
Reference Method ◽  
Assessment Methods ◽  
Vitamin B ◽  
Vitamin Supplement ◽  
Supplement Use ◽  
Dietary Assessment Methods

The EURRECA Network of Excellence is working towards the development of aligned micronutrient recommendations across Europe. The purpose of the present study was to define how to identify dietary intake validation studies in adults pertaining to vitamins. After establishing a search strategy, we conducted a MEDLINE and EMBASE literature review. A scoring system was developed to rate the quality of each validation study according to sample size, statistical methods, data collection procedure, seasonality and vitamin supplement use. This produced a quality index with possible scores obtained ranging from 0·5 to 7. Five thousand four-hundred and seventy-six papers were identified. The numbers meeting the inclusion criteria were: for vitamin A, 76; vitamin C, 108; vitamin D, 21; vitamin E, 75; folic acid, 47; vitamin B12, 19; vitamin B6, 21; thiamine, 49; riboflavin, 49; and niacin, 32. The most frequently used method to ascertain dietary intake was the Food Frequency Questionnaire (FFQ), whereas dietary records (DR) and 24-h recalls were the most used reference methods. The correlation coefficients (CC) between vitamin intakes estimated by FFQ and the reference method were weighted according to the study's quality index and ranged from 0·41 to 0·53 when the reference method was the DR and from 0·43 to 0·67 when the reference was 24-h recalls. A minority of studies (n33) used biomarkers for validation and in these the CC ranged from 0·26 to 0·38. The FFQ is an acceptable method of assessing vitamin intake. The present review provides new insights regarding the characteristics that assessment methods for dietary intake should fulfil.

scholarly journals Evaluating the quality of dietary intake validation studies

2009 ◽  
Vol 102 (S1) ◽  
pp. S3-S9 ◽  
Author(s):  
Lluis Serra-Majem ◽  
Lene Frost Andersen ◽  
Patricia Henríque-Sánchez ◽  
Jorge Doreste-Alonso ◽  
Almudena Sánchez-Villegas ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Validation Studies ◽  
Scoring System ◽  
Dietary Assessment ◽  
Quality Score ◽  
Assessment Methods ◽  
Nutritional Epidemiology ◽  
Supplement Use ◽  
Dietary Assessment Methods

Within the EURopean micronutrient RECommendations Aligned Network of Excellence (EURRECA), a scoring system was developed to assess the quality of dietary intake validation studies. The scoring system included three steps. The first step was to give each study a quality score, which included five components: sample size, statistics used, data collection procedure, consideration of seasonality and supplement use. Scores ranged from 0 to 7, and validation studies classified as very good ( ≥ 5), good (5–3·5), acceptable/reasonable (3·5–2·5) and poor ( < 2·5). The second and third steps included an adjustment/weighting of the correlation coefficient according to the quality score and moreover a rating of the adjusted/weighted correlation. The scoring system was tested in 124 validation studies that included at least one vitamin. Only 5·6 % of the 124 studies were judged to be of very good quality according to the quality score, 41·9 % of good quality and 16·9 % had a poor rating. When adjusting for the study quality scores, crude and adjusted mean correlations of vitamins A, C, D and E intakes were similar, but the percentage of correlation values classified as poor or very good was higher after adjustment. These results show the importance of considering the quality of studies validating dietary assessment methods and the correlations obtained for the micronutrient of interest when interpreting effects observed in epidemiological studies using dietary assessment methods. Without a doubt, this subject constitutes a key topic for research in nutritional epidemiology.

scholarly journals The Role of Dietary Energy and Macronutrients Intake in Prevalence of Irritable Bowel Syndromes

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Jing-jing Zhang ◽  
Han Ma ◽  
Jin-zhou Zhu ◽  
Chao Lu ◽  
Chao-hui Yu ◽  
...  
Keyword(s):  
Dietary Intake ◽  
Energy Intake ◽  
Gastrointestinal Disorder ◽  
Population Based ◽  
Dietary Energy ◽  
Dietary Intakes ◽  
Nutrition Survey ◽  
Direct Role ◽  
Rome Iii ◽  
Irritable Bowel

Background. Irritable bowel syndrome (IBS) is a chronic gastrointestinal disorder characterized by abdominal pain and altered bowel habits in the absence of any detectable organic illnesses. Interest in the effect of dietary opponents to the IBS pathogenesis has been increased in recent years. This study aims to review previous studies to determine the relationship between IBS prevalence in community and dietary energy and macronutrients intakes according to the national nutrition surveys. Methods. A literature search was conducted in PubMed and EMBASE to September, 2018, to identify population-based studies that reported the prevalence of IBS. Daily energy intake, daily carbohydrates, and protein and fat percent contribution to energy intake (%) were obtained from study population-based national nutrition survey. The correlations of prevalence of IBS and dietary intakes were obtained by Spearman coefficient or Pearson coefficient. Results. Global prevalence of IBS was 11.7%. There was no correlation between overall prevalence of IBS of individual countries and national energy intake (P = 0.785), protein proportion (P = 0.063), carbohydrates proportion (P = 0.505), or fat proportion (P = 0.384) according to the years when the studies were conducted. No correlations were detected between dietary intake and male or female IBS prevalence. Interestingly, protein proportion was positively correlated with the prevalence of IBS in Rome III criteria (r = 0.569). Conclusion. Our findings demonstrate that dietary energy and macronutrients intake do not play a direct role in prevalence of IBS. However, IBS diagnostic criteria seem to have a bias on the correlation between prevalence of IBS and dietary intake. Further studies are needed to confirm the correlation between prevalence of IBS and specific dietary intake.

scholarly journals BMI was found to be a consistent determinant related to misreporting of energy, protein and potassium intake using self-report and duplicate portion methods

2016 ◽  
Vol 20 (4) ◽  
pp. 598-607 ◽  
Author(s):  
Laura Trijsburg ◽  
Anouk Geelen ◽  
Peter CH Hollman ◽  
Paul JM Hulshof ◽  
Edith JM Feskens ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Dietary Intake ◽  
Dietary Assessment ◽  
Linear Regression Analysis ◽  
Assessment Methods ◽  
Self Report ◽  
Doubly Labelled Water ◽  
Dietary Assessment Methods ◽  
Duplicate Portion

AbstractObjectiveAs misreporting, mostly under-reporting, of dietary intake is a generally known problem in nutritional research, we aimed to analyse the association between selected determinants and the extent of misreporting by the duplicate portion method (DP), 24 h recall (24hR) and FFQ by linear regression analysis using the biomarker values as unbiased estimates.DesignFor each individual, two DP, two 24hR, two FFQ and two 24 h urinary biomarkers were collected within 1·5 years. Also, for sixty-nine individuals one or two doubly labelled water measurements were obtained. The associations of basic determinants (BMI, gender, age and level of education) with misreporting of energy, protein and K intake of the DP, 24hR and FFQ were evaluated using linear regression analysis. Additionally, associations between other determinants, such as physical activity and smoking habits, and misreporting were investigated.SettingThe Netherlands.SubjectsOne hundred and ninety-seven individuals aged 20–70 years.ResultsHigher BMI was associated with under-reporting of dietary intake assessed by the different dietary assessment methods for energy, protein and K, except for K by DP. Men tended to under-report protein by the DP, FFQ and 24hR, and persons of older age under-reported K but only by the 24hR and FFQ. When adjusted for the basic determinants, the other determinants did not show a consistent association with misreporting of energy or nutrients and by the different dietary assessment methods.ConclusionsAs BMI was the only consistent determinant of misreporting, we conclude that BMI should always be taken into account when assessing and correcting dietary intake.

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