scholarly journals Complex correlation structure in consumption rates of major food groups: implications for the assessment of radiation exposure

2003 ◽  
Vol 6 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Melanie I Breuninger ◽  
Gabriel A Schachtel ◽  
Petra M Lührmann ◽  
Bernd Hartmann ◽  
Monika Neuhäuser-Berthold

AbstractObjective:An extensive dataset on individual food consumption was analysed in order to study all pairwise correlations between the consumption rates of 11 major food groups. Additionally, the project aimed to examine and quantify the accuracy of a recently proposed estimator of total food consumption to be used for the estimation of radiation exposure by food. Such an inquiry seems justified, because the proposed estimator implicitly presumes an essentially positive correlation structure in food consumption rates.Design:Statistical analysis using representative data gathered in Germany in a nation-wide food consumption survey.Setting:Germany.Subjects:Individuals aged between 4 and 94 years namely 10901 males and 12308 females.Results:The consumption rates of 11 major food categories showed several significantly positive, but also a number of significantly negative, correlations. Negative associations between cereal and potato products persisted consistently over all age groups, independent of sex. Other significantly negative correlations were limited to certain age groups. Reflecting these negative correlations, a subsequent analysis of relative ranks of consumption revealed that no person in the sample had the highest consumption rates in all food groups simultaneously. Based on representative samples, overestimations of 34 to 53% were obtained if – as recently suggested in the context of radiation exposure prediction – the 95th percentiles of total food consumption were determined as sums of the corresponding percentiles of the food groups.Conclusions:The complex correlation structure of food group consumption rates, as identified in this study, bears important implications for various health-related issues. Ignoring them could lead to overly conservative estimations of radiation exposure due to food ingestion or to confounding effects in epidemiological studies on nutritional risk factors of diseases. The results also indicate that a distinction into different dietary patterns might be useful in characterising different consumption habits.

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1898
Author(s):  
Shanshan Li ◽  
Zein Kallas ◽  
Djamel Rahmani ◽  
José Maria Gil

The COVID-19 pandemic poses a threat to global food security, and it changes consumers’ food buying and consumption behavior. This research not only investigates trends in Spanish consumers’ general food shopping and consumption habits during the lockdown, but also investigates these trends from the perspective of sustainable purchasing. Specifically, total food consumption (C), food expenditure (E), and purchase of food with sustainable attributes (S) were measured. Data were collected from a semi-structured questionnaire which was distributed online among 1203 participants. The logit models showed that gender, age, employment status, and consumers’ experiences were associated with total food consumption and expenditure during the lockdown. In addition, consumers’ risk perceptions, shopping places, trust level in information sources, and risk preference were highly essential factors influencing consumers’ preferences and sustainable behavior. Consumers’ objective knowledge regarding COVID-19 was related to expenditure. Furthermore, family structure only affected expenditure, while income and place of residence influenced food consumption. Mood was associated with expenditure and the purchase of sustainable food. Household size affected purchasing behavior towards food with sustainable attributes. This research provides references for stakeholders that help them to adapt to the new COVID-19 situation.


1996 ◽  
Vol 21 (1) ◽  
pp. 415-415
Author(s):  
Mary H. Ross

Abstract The response of German cockroaches to MaxForce, a 0.05% hydramethylnon bait (Clorox Co.), in the presence of an alternate food source, was evaluated. Also, survivors were saved, mated, and progeny tested to investigate the possible development of either physiological or behavioral resistance. Cockroaches were from 5 field-collected strains from different geographic localities. Ten male and 10 female 6th instars were starved overnight, placed in 5 gal aquaria, and given a choice of dog chow or bait. Tests were run for 48 h. Mortality was recorded during and after the test until 2 d passed with no further death. Bait and dog chow consumption was determined (mg). Bait preference/avoidance was evaluated by dividing bait consumption by total food consumption (bait + dog chow). Six to 8 replicates were done on each strain in each generation.


2012 ◽  
Vol 50 (No. 9) ◽  
pp. 417-422
Author(s):  
I. Živělová ◽  
J. Jánský ◽  
T. Koudelková

The paper aims to analyse the contemporary situation on markets with selected organic products in the Czech Republic as well as in selected European countries. The attention is paid especially to the share of organic products´ consumption (cereals, potatoes, fruits, vegetables, milk, pork, poultry and eggs) in the total food consumption in the Czech Republic, in Spain, in Sweden, in the Netherlands and in Great Britain.


1978 ◽  
Vol 35 (3) ◽  
pp. 329-332 ◽  
Author(s):  
D. M. Rimmer ◽  
G. Power

Atlantic salmon (Salmo salar) alevins presented with lake zooplankton in still water readily consumed prey items, but only if the prey were nearby and moving. Feeding was initiated from the bottom or from midwater, but no search or pursuit behavior was noted. Stomach analyses of alevins exposed to lake zooplankton assemblages for 3 h in still and flowing (7.2 cm∙s−1) water revealed that the two groups consumed similar diets, but that the still-water group had a greater total food consumption. We conclude that for alevins to feed successfully, food need not be carried in a water current, but that motion of the prey is necessary. This motion can be provided by water current or by the prey. The role of prey motility in the feeding of young salmonids is briefly discussed. Key words: Atlantic salmon, alevins, feeding, water current


Author(s):  
Shu-Han You ◽  
Szu-Chieh Chen ◽  
Chin-Hsin Lin ◽  
Yen-Chu Chen

Aluminum (Al) exposure at human dietary levels raises health concerns, yet little is known about the Al exposure from the Taiwanese diet. The amount of aluminum (Al)-containing food consumption in the Taiwanese total diet is increasing, which contributes to the total diet consumption., which raises the health concerns. In this study, we aim to assess estimated weekly intake (EWI) and the percentage of provisional tolerable weekly intake (%PTWI) of the dietary exposure to Al in different age-sex groups. We also applied probabilistic risk analyses to quantify the parameters’ uncertainty by focusing on the distribution function for the Al concentration in food, consumption rate, and body weight in specific age groups. Results indicated that the EWIs declined with increasing age after 6-years old (7–12 > 13–15 > 16–18 > 19–64 > 65+). Results indicated that the EWIs gradually declined after 6-year of age. The EWIs of Al-rich food in cake + waffle, kelp, snacks, and bread contributed 20%, 17%, 17%, and 11%, respectively, to the total EWIs, corresponding with the much higher consumption rates for these four foods. The 75th percentile of EWIs for the children aged 34–6 years had a %PTWI valued at over 100%, indicating a potential risk of Al intake via dietary exposure. Our findings show that there is a concern about the consumption of Al-rich foods for children in Taiwan.


2021 ◽  
Vol 13 (4) ◽  
pp. 1945
Author(s):  
Vincent Linderhof ◽  
Marieke Meeske ◽  
Vasco Diogo ◽  
Anne Sonneveld

In Vietnam, agricultural practices such as fertilizer and pesticide use affect the landscape as well as the availability and safety of food. For instance, pesticides and fertilizer end up in surface water used for drinking water, crop irrigation, and in fish tanks. However, the link to actual food consumption and health is complex and information is lacking. This study considers potential water-related exposure to toxic hazards in northern Vietnam food systems, through the consumption of food commodities and of water. Water pollution is operationalized by considering the following two channels: (i) pesticide and nutrient leaching to surface water (share of surface water) and (ii) industrial runoff from facilities located in urban areas (share of urban areas). We explore how potential exposure to toxic hazard is related to food consumption choices. Using a sample of the Vietnam Household Living Standard Survey (VHLSS) for 2014, we estimate how shares of food consumption categories in total food consumption are affected by household and landscape characteristics, the latter also reflecting potential environmental pressures. In districts with higher shares of surface water, the share of fish consumption is higher and the share of meat consumption is lower. From an environmental and health perspective, households in water-rich areas thus may have a higher probability of being exposed to toxic chemicals due to higher fish consumption. In districts with higher shares of urban areas, the shares of meat and cereals in total food consumption value were lower, and the shares of fish and fruit and vegetables were higher. The results indicate that food consumption is affected by landscape characteristics that may also influence the level of exposure to water-related environmental pressures, and that this combined effect may potentially exacerbate food safety and health risks. The actual impact is more complex and should be analyzed with more sophisticated data and methods.


2016 ◽  
Vol 115 (11) ◽  
pp. 2025-2030 ◽  
Author(s):  
Bamini Gopinath ◽  
Victoria M. Flood ◽  
George Burlutsky ◽  
Jimmy C. Y. Louie ◽  
Louise A. Baur ◽  
...  

AbstractWe prospectively assessed the (1) frequency and socio-economic correlates of takeaway food consumption during adolescence; and (2) association between frequent takeaway food consumption with intakes of major food groups and anthropometric measures and blood pressure (BP). In total, 699 Sydney schoolchildren (380 girls and 319 boys) who had dietary data at both 12 and 17 years of age were included for analyses. Takeaway food consumption was self-reported and based on a single question. Anthropometric measures and BP were collected. The proportion of participants who ate takeaway foods once per week or more increased significantly over 5 years from the age of 12 to 17 years: 35·5–44·1 % (P<0·0001). In total, 12-year-old girls compared with boys had reduced odds of takeaway foods once per week or more at the age of 17 years (P=0·01), multivariable-adjusted OR 0·63 (95 % CI 0·44, 0·90). In total, 12-year-old children who ate takeaway foods once per week or more had significantly lower mean fruit (220·3 v. 253·0 g/d; P=0·03) and vegetable consumption (213·2 v. 247·7 g/d; P=0·004), 5 years later (at 17 years of age). Frequent takeaway food consumption at the age of 12 years was not associated with anthropometric indices and BP at the age of 17 years. Consumption of takeaway foods became more frequent during adolescence, particularly among boys, and it was associated with reduced intake of fruits and vegetables.


Nutrients ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1520 ◽  
Author(s):  
Lucille Desbouys ◽  
Karin De Ridder ◽  
Manon Rouche ◽  
Katia Castetbon

A key issue in nutritional public health policies is to take into account social disparities behind health inequalities. The transition from adolescence toward adulthood is a critical period regarding changes in health behaviors. This study aimed to determine how consumption of four emblematic food groups (two to favor and two to limit) differed according to socio-economic and cultural characteristics of adolescents and young adults living in Belgium. Two non-consecutive 24-h dietary recalls were carried out in a nationally representative sample of 10–39 year old subjects (n = 1505) included in the Belgian food consumption survey 2014. Weighted daily mean consumption of “fruits and vegetables”, “whole grain bread and cereals”, “refined starchy food”, and “sugary sweetened beverages” (SSB) was calculated and explored in multivariable linear regressions stratified into four age groups. After adjustment, 10–13 year old adolescents living in less educated households daily consumed lower amounts of “fruits and vegetables” (adjusted mean: 165.6 g/day (95% CI: 125.3–206.0)) and “whole grain bread and cereals” (40.4 g/day (22.9–58.0)), and higher amounts of SSB (309.7 g/day (131.3–488.1) than adolescents of same ages living in more educated households (220.2 g/day (179.8–260.7); 59.0 g/day (40.3–77.8); and 157.8 g/day (1.7–314.0), respectively). The same trends were observed in older groups, along with strong consumption disparities according to region of residency, country of birth, and occupation, with specificities according to age. Our findings suggest the need to better explore such disparities by stage of transition to adulthood, and to adapt nutritional health programs.


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