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Proceedings of the Nutrition Society

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https://www.readbyqxmd.com/read/28103960/knowing-your-genes-does-this-impact-behaviour-change
#1
Clare B O'Donovan, Marianne C Walsh, Michael J Gibney, Lorraine Brennan, Eileen R Gibney
It is postulated that knowledge of genotype may be more powerful than other types of personalised information in terms of motivating behaviour change. However, there is also a danger that disclosure of genetic risk may promote a fatalistic attitude and demotivate individuals. The original concept of personalised nutrition (PN) focused on genotype-based tailored dietary advice; however, PN can also be delivered based on assessment of dietary intake and phenotypic measures. Whilst dietitians currently provide PN advice based on diet and phenotype, genotype-based PN advice is not so readily available...
January 20, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28100287/characterisation-of-fatty-acid-metabolism-in-different-insulin-resistant-phenotypes-by-means-of-stable-isotopes
#2
Ellen E Blaak
The obese insulin resistant and/or prediabetic state is characterised by systemic lipid overflow, mainly driven by an impaired lipid buffering capacity of adipose tissue, and an impaired capacity of skeletal muscle to increase fat oxidation upon increased supply. This leads to the accumulation of bioactive lipid metabolites in skeletal muscle interfering with insulin sensitivity via various mechanisms. In this review, the contribution of dietary v. endogenous fatty acids to lipid overflow, their extraction or uptake by skeletal muscle as well as the fractional synthetic rate, content and composition of the muscle lipid pools is discussed in relation to the development or presence of insulin resistance and/or an impaired glucose metabolism...
January 19, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28100284/role-of-flavonoids-and-nitrates-in-cardiovascular-health
#3
Julie A Lovegrove, Alex Stainer, Ditte A Hobbs
CVD remain the leading cause of death globally. Effective dietary strategies for their reduction are of high priority. Increasing evidence suggests that phytochemicals, particularly dietary flavonoids and nitrates, are key modulators of CVD risk reduction through impact on multiple risk factors. The aim of this review is to explore the evidence for the impact of flavonoid- and nitrate-rich foods and supplements on CVD risk, with specific reference to their importance as mediators of vascular health and platelet function...
January 19, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28091348/effects-of-intermittent-fasting-on-glucose-and-lipid-metabolism
#4
Rona Antoni, Kelly L Johnston, Adam L Collins, M Denise Robertson
Two intermittent fasting variants, intermittent energy restriction (IER) and time-restricted feeding (TRF), have received considerable interest as strategies for weight-management and/or improving metabolic health. With these strategies, the pattern of energy restriction and/or timing of food intake are altered so that individuals undergo frequently repeated periods of fasting. This review provides a commentary on the rodent and human literature, specifically focusing on the effects of IER and TRF on glucose and lipid metabolism...
January 16, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28091346/the-role-of-metabolomics-in-determination-of-new-dietary-biomarkers
#5
A O'Gorman, L Brennan
Traditional methods for the assessment of dietary intake are prone to error; in order to improve and enhance these methods increasing interest in the identification of dietary biomarkers has materialised. Metabolomics has emerged as a key tool in the area of dietary biomarker discovery and to date the use of metabolomics has identified a number of putative biomarkers. Applications to identify novel biomarkers of intake have in general taken three approaches: (1) specific acute intervention studies to identify specific biomarkers of intake; (2) searching for biomarkers in cohort studies by correlating to self-reported intake of a specific food/food group(s); (3) analysing dietary patterns in conjunction with metabolomic profiles to identify biomarkers and nutritypes...
January 16, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27995834/environmental-and-genetic-factors-influence-the-vitamin-d-content-of-cows-milk
#6
R R Weir, J J Strain, M Johnston, C Lowis, A M Fearon, S Stewart, L K Pourshahidi
Vitamin D is obtained by cattle from the diet and from skin production via UVB exposure from sunlight. The vitamin D status of the cow impacts the vitamin D content of the milk produced, much like human breast milk, with seasonal variation in the vitamin D content of milk well documented. Factors such as changes in husbandry practices therefore have the potential to impact the vitamin D content of milk. For example, a shift to year-round housing from traditional practices of cattle being out to graze during the summer months and housed during the winter only, minimises exposure to the sun and has been shown to negatively influence the vitamin D content of the milk produced...
December 20, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27976605/measuring-diet-in-the-21st-century-use-of-new-technologies
#7
Janet E Cade
The advent of the internet and smartphone technology has allowed dietary assessment to reach the 21st century! The variety of foods available on the supermarket shelf is now greater than ever before. New approaches to measuring diet may help to reduce measurement error and advance our understanding of nutritional determinants of disease. This advance provides the potential to capture detailed dietary data on large numbers of individuals without the need for costly and time-consuming manual nutrition coding...
December 15, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27938425/new-mobile-methods-for-dietary-assessment-review-of-image-assisted-and-image-based-dietary-assessment-methods
#8
C J Boushey, M Spoden, F M Zhu, E J Delp, D A Kerr
For nutrition practitioners and researchers, assessing dietary intake of children and adults with a high level of accuracy continues to be a challenge. Developments in mobile technologies have created a role for images in the assessment of dietary intake. The objective of this review was to examine peer-reviewed published papers covering development, evaluation and/or validation of image-assisted or image-based dietary assessment methods from December 2013 to January 2016. Images taken with handheld devices or wearable cameras have been used to assist traditional dietary assessment methods for portion size estimations made by dietitians (image-assisted methods)...
December 12, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27919301/the-integration-of-epigenetics-and-genetics-in-nutrition-research-for-cvd-risk-factors
#9
Yiyi Ma, Jose M Ordovas
There is increasing evidence documenting gene-by-environment (G × E) interactions for CVD related traits. However, the underlying mechanisms are still unclear. DNA methylation may represent one of such potential mechanisms. The objective of this review paper is to summarise the current evidence supporting the interplay among DNA methylation, genetic variants, and environmental factors, specifically (1) the association between SNP and DNA methylation; (2) the role that DNA methylation plays in G × E interactions...
December 6, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27916005/malnutrition-in-healthcare-settings-and-the-role-of-gastrostomy-feeding
#10
Matthew Kurien, Jake Williams, David S Sanders
Malnutrition can adversely affect physical and psychological function, influencing both morbidity and mortality. Despite the prevalence of malnutrition and its associated health and economic costs, malnutrition remains under-detected and under-treated in differing healthcare settings. For a subgroup of malnourished individuals, a gastrostomy (a feeding tube placed directly into the stomach) may be required to provide long-term nutritional support. In this review we explore the spectrum and consequences of malnutrition in differing healthcare settings...
December 5, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27916004/sugars-and-health-a-review-of-current-evidence-and-future-policy
#11
Charlotte Elizabeth Louise Evans
The automation of the process of extracting sugars in the 1900s reduced cost and increased availability of sugars leading to a dramatic rise in consumption, which reached a peak in the 1970s. There are different definitions for sugars not naturally available in foods, and free sugars is the term used by WHO. The epidemiological evidence of the associations between sugars and obesity and type 2 diabetes mellitus is fairly strong and consistent, particularly for sugar sweetened drinks in adults. The Department of Health in the UK and many other countries have recently updated their recommendations for free sugars as a result of this scientific evidence...
December 5, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27903318/in-vitro-bioavailability-and-cellular-bioactivity-studies-of-flavonoids-and-flavonoid-rich-plant-extracts-questions-considerations-and-future-perspectives
#12
Gerard Bryan Gonzales
In vitro techniques are essential in elucidating biochemical mechanisms and for screening a wide range of possible bioactive candidates. The number of papers published reporting in vitro bioavailability and bioactivity of flavonoids and flavonoid-rich plant extracts is numerous and still increasing. However, even with the present knowledge on the bioavailability and metabolism of flavonoids after oral ingestion, certain inaccuracies still persist in the literature, such as the use of plant extracts to study bioactivity towards vascular cells...
December 1, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27903310/the-determinants-of-food-choice
#13
Gareth Leng, Roger A H Adan, Michele Belot, Jeffrey M Brunstrom, Kees de Graaf, Suzanne L Dickson, Todd Hare, Silvia Maier, John Menzies, Hubert Preissl, Lucia A Reisch, Peter J Rogers, Paul A M Smeets
Health nudge interventions to steer people into healthier lifestyles are increasingly applied by governments worldwide, and it is natural to look to such approaches to improve health by altering what people choose to eat. However, to produce policy recommendations that are likely to be effective, we need to be able to make valid predictions about the consequences of proposed interventions, and for this, we need a better understanding of the determinants of food choice. These determinants include dietary components (e...
December 1, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27846919/intestinal-bile-acid-receptors-are-key-regulators-of-glucose-homeostasis
#14
Mohamed-Sami Trabelsi, Sophie Lestavel, Bart Staels, Xavier Collet
In addition to their well-known function as dietary lipid detergents, bile acids have emerged as important signalling molecules that regulate energy homeostasis. Recent studies have highlighted that disrupted bile acid metabolism is associated with metabolism disorders such as dyslipidaemia, intestinal chronic inflammatory diseases and obesity. In particular, type 2 diabetes (T2D) is associated with quantitative and qualitative modifications in bile acid metabolism. Bile acids bind and modulate the activity of transmembrane and nuclear receptors (NR)...
November 16, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27821203/ageing-alters-the-impact-of-nutrition-on-immune-function
#15
Parveen Yaqoob
Immunosenescence during ageing is a major challenge which weakens the ability of older individuals to respond to infection or vaccination. There has been much interest in dietary strategies to improve immunity in older people, but there is an assumption that modulation of the immune response in older people will be based on the same principles as for younger adults. Recent evidence suggests that ageing fundamentally alters the impact of nutrition on immune function. As a result, interpretation of data from studies investigating the impact of diet on immune function is highly dependent on subject age...
November 8, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27819203/nutrigenomics-in-the-modern-era
#16
John C Mathers
The concept that interactions between nutrition and genetics determine phenotype was established by Garrod at the beginning of the 20th century through his ground-breaking work on inborn errors of metabolism. A century later, the science and technologies involved in sequencing of the human genome stimulated development of the scientific discipline which we now recognise as nutritional genomics (nutrigenomics). Much of the early hype around possible applications of this new science was unhelpful and raised expectations, which have not been realised as quickly as some would have hoped...
November 7, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27804896/investigating-cholesterol-metabolism-and-ageing-using-a-systems-biology-approach
#17
A E Morgan, K M Mooney, S J Wilkinson, N A Pickles, M T Mc Auley
CVD accounted for 27 % of all deaths in the UK in 2014, and was responsible for 1·7 million hospital admissions in 2013/2014. This condition becomes increasingly prevalent with age, affecting 34·1 and 29·8 % of males and females over 75 years of age respectively in 2011. The dysregulation of cholesterol metabolism with age, often observed as a rise in LDL-cholesterol, has been associated with the pathogenesis of CVD. To compound this problem, it is estimated by 2050, 22 % of the world's population will be over 60 years of age, in culmination with a growing resistance and intolerance to pre-existing cholesterol regulating drugs such as statins...
November 2, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27804893/phenolic-enriched-foods-sources-and-processing-for-enhanced-health-benefits
#18
Gordon J McDougall
Polyphenols are ubiquitous secondary products present in many plant foods. Their intake has been associated with health benefits ranging from reduced incidence of CVD, diabetes and cancers to improved neurodegenerative outcomes. Major dietary sources include beverages such as coffee, teas and foods such as chocolate. Fruits are also major sources and berries in particular are a palatable source of a diverse range of polyphenol components. There are a number of ways that polyphenol uptake could be increased and healthier polyphenol-rich foods could be produced with specific compositions to target-specific health effects...
November 2, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27776564/food-based-solutions-for-vitamin-d-deficiency-putting-policy-into-practice-and-the-key-role-for-research
#19
Aoife Hayes, Kevin D Cashman
Recent re-evaluations of dietary reference values (DRV) for vitamin D have established intake requirements between 10 and 20 µg/d. National nutrition surveys indicate that habitual mean intakes of vitamin D in the population are typically in the range 3-7 µg/d. As vitamin D supplementation will not be effective at a population level because the uptake is generally low, creative food-based solutions are needed to bridge the gap between current intakes and these new requirement values. The overarching aim of this review is to highlight how food-based solutions can have an important role in bridging this gap and counteracting vitamin D inadequacy in Europe and elsewhere...
October 25, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27766990/providing-evidence-to-support-the-development-of-whole-grain-dietary-recommendations-in-the-united-kingdom
#20
Kay D Mann, Mark S Pearce, Chris J Seal
Observational evidence suggests that increased whole grain (WG) intake reduces the risks of many non-communicable diseases, such as CVD, type 2 diabetes, obesity and certain cancers. More recently, studies have shown that WG intake lowers all-cause and cause-specific mortality. Much of the reported evidence on risk reduction is from US and Scandinavian populations, where there are tangible WG dietary recommendations. At present there is no quantity-specific WG dietary recommendation in the UK, instead we are advised to choose WG or higher fibre versions...
October 21, 2016: Proceedings of the Nutrition Society
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