Improvement of diet sustainability with increased level of organic food in the diet: findings from the BioNutriNet cohort

2019 ◽  
Vol 109 (4) ◽  
pp. 1173-1188 ◽  
Author(s):  
Julia Baudry ◽  
Philippe Pointereau ◽  
Louise Seconda ◽  
Rodolphe Vidal ◽  
Bruno Taupier-Letage ◽  
...  

ABSTRACT Background Organic food consumption has steadily increased over the past decade in westernized countries. Objective The aim of this study, based on observational data, was to compare some sustainability features of diets from consumers with varying levels of organic food. Methods The diet sustainability among 29,210 participants of the NutriNet-Santé study was estimated using databases developed within the BioNutriNet project. Four dimensions (nutrition, environment, economy, and toxicology) of diet sustainability were assessed using: 1) nutritional indicators through dietary intakes and dietary scores, and BMI; 2) environmental indicators (greenhouse gas emissions, cumulative energy demand, and land occupation); 3) economic indicators via diet monetary costs; and 4) estimated daily food exposures to 15 pesticides. Adjusted means (95% CI) across weighted quintiles of organic food consumption in the diet were estimated via ANCOVA. Breakdown methods were used to disentangle the contribution of the production system (organic compared with conventional) from the dietary pattern in the variation of diet-related environmental impacts, monetary costs, and pesticide exposure, between the 2 extreme quintiles. Results Higher organic food consumption was associated with higher plant-food and lower animal-food consumption, overall nutritional quality (higher dietary scores), and lower BMI. Diet-related greenhouse-gas emissions, cumulative energy demand, and land occupation gradually decreased with increasing organic food consumption, whereas total diet monetary cost increased. Diet exposure to most pesticides decreased across quintiles. Conclusions Diets of high organic food consumers were generally characterized by strong nutritional and environmental benefits. The latter were mostly driven by the low consumption of animal-based foods, whereas the production system was responsible for the higher diet monetary costs, and the overall reduced dietary pesticide exposure.

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Emmanuelle Kesse-guyot ◽  
Dan Chaltiel ◽  
Benjamin Allès ◽  
Philippe Pointereau ◽  
Pauline Rebouillat ◽  
...  

AbstractBackgroundRecently, Food-Based Dietary Guidelines (FBDG) have introduced the sustainability concept relying on health and environmental issues related diet. In 2017, the French FBDG were updated including, beyond healthy diet for human, environmental protection and the promotion of organic food.ObjectivesThe aim of the present analysis was to describe sustainable indicators (nutrition, environment, economic, sanitary exposure and long-term) according to adherence to the 2017 FBDG.Material and MethodsThe sample included a total of 28,240 from the NutriNet-Santé cohort having completed an, in the framework of the BioNutriNet project, an organic food frequency questionnaire allowing to estimate organic and conventional food consumption for 264 items. After matching, several databases were compiled to evaluate environmental impacts (greenhouse gas emissions, cumulative energy demand and land occupation and the pReCiPe score aggregating the three individual indicators), purchase costs of the diet and dietary exposure to pesticides, all data accounting for farming systems. A recently validated adherence score estimating compliance with the 2017 FBDG (programme national nutrition santé guidelines-score, PNNS-GS 2) was used and the quintiles were computed for comparison purpose of multiple sustainable. Numbers of averted or avoided deaths by adhering to the FBDG were also estimated using the PRIME.ResultsA higher PNNS-GS2 scores is positively correlated to a high plant-based diet, a lower energy intake and a higher cost (+ 0.91€/d). It was associated with lower environmental impacts (ΔQ5vsQ1pReCiPe: -50% for PNNS-GS2). Higher PNNS-GS2 was associated with lower exposure to all pesticides except those used in organic farming and led to a reduction of about 20,000 averted or delayed deaths.ConclusionOur results suggest that 2017 FBDG are in line with the sustainable despite a slight higher cost. Such dietary guidelines, if largely adopted, may help in health promotion and reducing environmental protection in a context of an alarming climatic change.


2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Pauline Rebouillat ◽  
Rodolphe Vidal ◽  
Jean-Pierre Cravedi ◽  
Bruno Taupier-Letage ◽  
Laurent Debrauwer ◽  
...  

AbstractPesticides are used in large quantities in current agriculture all over Europe. Some pesticides are suspected of having negative effects on human health. While the risk associated with occupational exposure is getting well-documented, evidence of dietary exposure to these molecules in the general population is lacking. The aim of this study is to describe dietary exposure to pesticides among NutriNet-Santé cohort participants’.NutriNet-Santé is a web-based cohort of French middle-aged adults launched in 2009. BioNutriNet is an ancillary study launched in 2014, aiming to measure organic and conventional food consumption and evaluate different dimensions of diet sustainability. Dietary intake of organic and conventional foods was assessed using a 264 items self-administered semi-quantitative food frequency questionnaire. Exposure to 25 commonly used pesticides was evaluated using contamination data from CVUA Stuttgart accounting for farming system. Dietary pesticide exposure profiles were identified using Non-Negative Matrix factorization (NMF), specially adapted for non-negative data with excess zeros. The NMF scores were then introduced in a hierarchical clustering process. Identified clusters were described in terms of sociodemographics, dietary patterns and exposure to pesticides.A total of 34,442 participants were selected. Four clusters were identified. All clusters seemed to be exposed to the same molecules, with gradual intensity. The first cluster was characterized by the lowest energy-intake, highest organic food consumption (26.9%) and lowest dietary pesticide exposure; participants had highest consumption levels of organic food groups, including fruits and vegetables. Proportion of male participants and of rural residents was higher than in other groups. Clusters 2 and 3 were characterized by intermediate energy intake, and low organic food consumption. High conventional fruits and vegetables intake and moderate pesticide exposure were observed in cluster 2, composed of a lower smokers’ proportion. Cluster 3 individuals were less exposed to pesticides than clusters 2 and 4, except for Spinosad and Pyrethrins. Cluster 4 was characterized by the highest energy intake, lowest organic food consumption (12.2%), and highest pesticide exposure ; high consumption levels of conventional fruits, vegetables and a higher proportion of vegetarians were observed. This cluster was composed of 85.6% female participants, mainly retired (47.5%), mostly living in cities of 200 000 inhabitants and more (48.2%), and physically active.Dietary pesticide exposures seem to vary across the clusters and depending on the proportion of organic food in the diet. High consumers of conventional fruits and vegetables consumers seem to be more exposed to our selection of pesticides.


2017 ◽  
Vol 152 ◽  
pp. 67-79 ◽  
Author(s):  
Christiane Peter ◽  
Xenia Specka ◽  
Joachim Aurbacher ◽  
Peter Kornatz ◽  
Christiane Herrmann ◽  
...  

2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
P Rebouillat ◽  
R Vidal ◽  
J-P Cravedi ◽  
L Debrauwer ◽  
L Gamet-Payrastre ◽  
...  

Abstract Pesticides are commonly used in current agriculture and some negative effects are suspected for human health but evidence from dietary exposure in the general population is lacking. This study aimed to describe dietary pesticide exposure among French cohort participants. Organic and conventional food consumption was assessed using a self-administered semi-quantitative food frequency questionnaire in 2014 in the NutriNet-Santé cohort. Exposure to 25 commonly used pesticides was estimated using contamination data (CVUA Stuttgart) accounting for farming system. Dietary pesticide exposure profiles were identified using Non-negative Matrix Factorization, adapted for non-negative sparse data and then introduced in a hierarchical clustering process. The 6 identified clusters (n = 34,193) seemed to be exposed to the same molecules with gradual intensity. Cluster 1 was characterized by the lowest energy-intake and dietary pesticide exposure, and high consumption of organic food groups (23.3%). Proportion of male participants was higher than in other groups. Clusters 2 and 5 were characterized by intermediate energy intake, lower organic food consumption and intermediate pesticide exposure. High conventional fruits and vegetables intake and high pesticide exposure were observed in cluster 3, composed of a lower smokers’ proportion. Cluster 6 was characterized by the highest energy intake, lowest organic food consumption (9%), and highest pesticide exposure; high consumption levels of conventional fruits, vegetables and a higher proportion of vegans were observed. For cluster 4, pesticide exposure varied more across molecules than for other clusters. The highest exposures were observed for Acetamiprid, Azadirachtin, Cypermethrin, Pyrethrins, Spinosad pesticides. Proportion of organic food in the diet was the highest (31.5%). Dietary pesticide exposures seem to vary across the clusters and related to the proportion of organic food in the diet. Key messages Dietary pesticide exposures seemed to vary gradually across the clusters and depending on the proportion of organic food in the diet. High consumers of conventional FV in this cohort seem to be more exposed to our selection of pesticides.


Author(s):  
Luis Carral ◽  
Juan José Cartelle Barros ◽  
Humberto Carro Fidalgo ◽  
Carolina Camba Fabal ◽  
Alicia Munín Doce

The principle of sustainability should condition a project in which artificial reefs are being installed to protect biodiversity as well as enhance costal ecosystems. In particular, this principle should be taken into account in the logistical processes related to manufacture and transport. This study assesses the global warming potential (GWP) and cumulative energy demand (CED) of developing a coastal ecosystem enhancement programme in the estuary region of Galicia, north-western Spain. The focus is on the processes involved in creating green artificial reefs (GARs): manufacture, transport and installation. The starting point is the supply chain for the green artificial reef (GAR) units; greenhouse gas emissions (GHG) and energy needs for each phase are analysed. Various scenarios are considered to determine which options are indeed available when it comes to establishing the supply chain. Different types of energy supplies, different options for the location of production centres, as well as different means of transport were studied. Results reveal the critical phases for selecting how the GAR units must be produced, transported by road and sea and then installed in their permanent location.


2016 ◽  
Vol 16 (1) ◽  
pp. 33-49 ◽  
Author(s):  
Grace Ding ◽  
Perry Forsythe

In order to make environmentally aware decisions, there is growing interest in the comparative energy and greenhouse gas (GHG) performance of competing construction methods. Little research has been done concerning competing ground floor construction methods, especially given different site variables, such as slope and soil type. A life cycle assessment approach was adopted to analyse environmental impacts, including cumulative energy demand and GHG emissions for detached housing construction in Australia. Data was drawn from 24 case study housing projects, including 12 reinforced concrete and 12 suspended timber floor projects. The data presented in the paper compares cumulative energy demand, GHG and the constituent parts of competing construction methods. The findings indicate that the timber floors use/create significantly less cumulative energy demand and GHG emissions than concrete floors—approximately 2.1 to 2.7 times less energy and 2.3 to 2.9 times less GHG. These findings are limited to the site slope and foundation soil types identified in the paper. The main application of the work is in guidance concerning the lowest environmental impact options for detached housing construction.


2012 ◽  
Vol 150 (6) ◽  
pp. 755-763 ◽  
Author(s):  
T. T. H. NGUYEN ◽  
H. M. G. VAN DER WERF ◽  
M. DOREAU

SUMMARYThe aim of the current study was to analyse the environmental impacts of fattening bull systems using life cycle assessment (LCA). Three contrasting bull-fattening systems practised in France were compared. Diets H, MS and C differed by the nature of the forage consumed (hay, maize silage and wheat straw, respectively) and the proportion of concentrate, i.e. ground maize grain and soybean meal (0·51, 0·37 and 0·86, respectively) in the diets. Diet MS resulted in the lowest cumulative energy demand and in the highest acidification potential per kg of body weight gain (BWG). Eutrophication potential per kg of BWG was highest for diet C and the lowest for diet H. The relative contribution of eutrophication and acidification impacts by feeds and manure varied according to diet. The system using a hay-based diet resulted in the highest land occupation per kg of BWG and in the lowest impact per ha of land occupied for all impacts. It was found that the use of LCA, involving a multi-criteria assessment allowing the expression of results according to several functional units (kg of BWG and ha of land occupied) is essential to analyse the effectiveness of a pollution reduction strategy.


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