In many people, stress is associated with changes in eating behaviour. Food products consumed during stress (comfort foods) are often unhealthy. It is rather unknown what comfort foods are consumed in Germany and what healthier food products are considered as alternatives to support stress-eaters in making healthier food choices.This online survey was conducted in spring 2021 throughout Germany. Participants were digitally recruited by newsletters, homepages, social media, and mailing lists. The survey included a standardized questionnaire with items concerning e.g. sociodemography, stress, and nutrition. Comfort foods were pre-selected through literature search and food substitutes were defined and discussed by experts. Analyses examined comfort food consumption and substitute preferences dependent on sex, age, body mass index (BMI), and being a self-identified stress-eater. The statistical analysis was performed using R.Survey participants were mostly female (80.6%, 994/1234), had a mean age of 31.4 ± 12.8 years and a mean BMI of 23.4 ± 4.3 kg/m2. Participants stated, that the two favourite comfort foods were chocolate (consumed often/very often by 48.3%, 596/1234) and coffee (consumed often/very often by 45.9%, 566/1234). Regarding food substitutes, the most frequently named alternative food for chocolate and cookies was fresh fruits (for chocolate: 74.4%, 815/1096, for cookies: 62.6%, 565/902). Tea without added sugar (64.4%, 541/840) was the preferred substitute for coffee. Almost 50% of participants (48.1%, 594/1234) identified themselves as stress-eaters, of which 68.9% (408/592) stated to eat (very) often more than usual in subjective stress situations.The results from this work suggest that specific comfort foods and substitutes are preferred by the participants in stressful situations. This knowledge about food choices and substitutes should be investigated in further studies to improve eating behaviour in stressful situations.The survey was registered in the German Register of Clinical Studies (Registration number: DRKS00023984 ). 

/pdf/stress-eating-an-online-survey-of-eating-behaviours-comfort-2ar3y6s4.pdf

Stress eating: an online survey of eating behaviours, comfort foods, and healthy food substitutes in German adults

Since the start of the war in Ukraine, almost 8 million people left the country; more than 1 million of them relocated to Germany. It is to be expected that the war puts considerable strain on refugees, which will impact the public health system in host countries. This paper presents baseline data and protocol of longitudinal online experimental study of 619 Ukrainian refugees in Germany started in autumn 2022, focusing on participants' self-reports of appetite, food intake, and levels of stress, anxiety, and depressive symptoms to examine their associations. Results indicate that levels of stress, anxiety, and depressive symptoms in refugees significantly exceed the indicators of relevant parameters as reported by independent large-scale surveys conducted in Ukraine before the war as well as strong correlations between these deviations (.59 ≤ r ≤ .69, p = .005). Changes in appetite were related to more severe psycho-emotional deviations (.15 ≤ r ≤ .19, p = .003) and somewhat unhealthier food intake (r = -.08, p < .001). The study underlines the need of psychological care for refugees to improve their mental health and counteract potential negative consequences for physical health via changes in food intake, for which suitable interventions need to be developed.

Investigation of Ukrainian refugees' eating behavior, food intake, and psychological distress: Study protocol and baseline data.

OBJECTIVE
Increased intake of sweets or sugar craving may occur in response to chronic stress representing a risk factor for development of eating disorders and obesity. However, no safe treatment of stress-induced sugar craving is available. In this study we analysed effects of two Lactobacillus strains on food and sucrose intake in mice before and during their exposure to a chronic mild stress (CMS).


RESEARCH METHODS & PROCEDURES
C57Bl6 mice were gavaged daily for 27 days with a mix of L. salivarius (LS) LS7892 and L. gasseri (LG) LG6410 strains or with 0.9% NaCl as a control. Following 10 days of gavage, mice were individually placed into the Modular Phenotypic cages, and after 7 days of acclimation were exposed to a CMS model for 10 days. Food, water and 2% sucrose intakes as well as meal pattern were monitored. Anxiety and depressive-like behaviour were analysed by standard tests.


RESULTS
Exposure of mice to CMS was accompanied by increased size of sucrose intake in the control group likely reflecting the stress-induced sugar craving. A consistent, about 20% lower total sucrose intake, was observed in the Lactobacilli-treated group during stress which was mainly due to a reduced number of intakes. Lactobacilli treatment also modified the meal pattern before and during the CMS, showing a decrease of meal number and an increase of meal size with a tendency of reduced total daily food intake. Mild anti-depressive behavioural effects of the Lactobacilli mix were also present.


CONCLUSION
Supplementation of mice with LS LS7892 and LG LG6410 decreases sugar consumption suggesting a potential utility of these strains against stress-induced sugar craving.

https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/erv.3004

Lactobacillus salivarius and Lactobacillus gasseri supplementation reduces stress-induced sugar craving in mice.

Since the start of the war in Ukraine in February 2022, almost 8 million people left the country; more than 1 million of them relocated to Germany. It is to be expected that the war puts considerable strain on the refugees, which will impact the public health system in the host countries. This paper presents the baseline data and protocol of a longitudinal online experimental study of 585 Ukrainian refugees in Germany conducted in autumn 2022, focusing on participants’ self-reports of appetite, food intake as well as their psycho-emotional state including levels of stress, anxiety and depressive symptoms to examine their associations. Results indicate that the levels of stress, depressive symptoms and anxiety in refugees significantly exceed the pre-war indicators of the relevant parameters: 63.5%/ 73.3%/ 64% of the sample reported clinically relevant levels of stress, depression and anxiety, respectively. Associations with eating behavior were mostly small (-.02 ≤ rs ≤ .25) and strongest for elevated depression scores. The study underlines the need of short- and long-term psychological care for refugees to improve their mental health and counteract potential negative consequences for physical health via changes in eating behavior, for which suitable interventions need to be developed. 

Investigation of Ukrainian refugees’ eating behavior and psychological distress: study protocol and baseline data

Limited social contacts, lack of professional activities, economic insecurity, and a sense of threat, as well as boredom during the COVID-19 pandemic, contributed to tension and stress. All of these increase the risk of an inappropriate diet. The aim of this cross-sectional study was to assess the impact of the COVID-19 pandemic on the mood and nutrition of patients undergoing bariatric surgery. A group of 312 patients (both before and after bariatric surgery) completed a questionnaire about their diet and mood during COVID-19 lockdown. About 70% of all respondents reacted to the epidemiological situation: irritability, anxiety about their own health, and eating without being hungry. A total of 74% of all of the subjects snacked between meals (especially sweets). The respondents who believed that obesity and its complications had a negative impact on the prognosis of the coronavirus infection had a statistically significant higher prevalence of health anxiety, feeling that important life issues were out of control, irritability, need for psychological support, and need for dietary consultation. Patients after bariatric surgery had e.g., a statistically significant lower incidence of feeling hungry, eating after meals, and eating fatty foods. The COVID-19 pandemic has been shown to negatively affect the mood and diet of bariatric patients, which may affect their health status and worsen the prognosis of COVID-19.

/pdf/the-impact-of-the-covid-19-epidemic-on-the-mood-and-diet-of-1k74aegs.pdf

The Impact of the COVID-19 Epidemic on the Mood and Diet of Patients Undergoing Bariatric Surgery

Stressful situations can have an impact on an individual's eating behavior. People vulnerable to the influence of stress tend to change the quantity and quality of their food intake. Variables such as sex and body mass index (BMI) seem to be related to this stress-eating behavior, but it is rather unclear what factors account to the parameters associated with stress-eating behavior. The aim of this survey was to identify further characteristics of adults in Germany related to stress-overeating, focusing on stress perception, coping, eating motives and comfort foods as well as personality types.This online survey was performed throughout Germany and comprised a 38-item pre-tested questionnaire. Stress-induced overeating was classified based on the Salzburg Stress Eating Scale (SSES). Moreover, validated questionnaires were used to identify additional characteristics of stress eaters. Participants were recruited using a convenience sampling approach, and data were collected between January and April 2021.The overall sample consisted of 1222 participants (female 80.8%, aged 31.5±12.8). 42.1% of participants were identified as stress-overeaters. Among the remaining group, 78.9% stated to eat less, 21.1% to eat equally when stressed. Female participants had a higher mean SSES score compared to male participants. The BMI was positively correlated to SSES, r(1220)=0.28, p>0.005. 'Agreeableness' (BigFive) was found to be a negative predictor of stress-overeating. The most pronounced difference in eating motives (The Eating Motivation Survey, TEMS) was found for 'Affect Regulation' and 'Weight Control'.The results indicate that stress-overeating affects a large proportion of the surveyed population. BMI, personality and eating motives additionally characterize stress-overeaters and may contribute to develop new approaches to address unhealthy stress-related eating patterns. 

https://bmcpublichealth.biomedcentral.com/counter/pdf/10.1186/s12889-021-12488-9

Stress-induced hyperphagia: empirical characterization of stress-overeaters

About 40% of people respond to stress by consuming more unhealthy foods. This behavior is associated with increased energy intake and the risk of obesity. As mobile health (mHealth) applications (apps) have been shown to be an easy-to-use intervention tool, the characterization of potential app users is necessary to develop target group-specific apps and to increase adherence rates.This cross-sectional online survey was conducted in the spring of 2021 in Germany. Sociodemographic data and data on personality (Big Five Inventory, BFI-10), stress-eating (Salzburg Stress Eating Scale, SSES), and technology behavior (Personal Innovativeness in the Domain of Information Technology, PIIT; Technology Acceptance Model 3, TAM 3) were collected.The analysis included 1228 participants (80.6% female, mean age: 31.4 ± 12.8 years, mean body mass index (BMI): 23.4 ± 4.3 kg/m2). Based on the TAM score, 33.3% (409/1228) of the participants had a high intention to use a hypothetical mHealth app to avoid stress-overeating. These persons are characterized by a higher BMI (24.02 ± 4.47 kg/m2, p < 0.001), by being stress-overeaters (217/409, 53.1%), by the personality trait "neuroticism" (p < 0.001), by having specific eating reasons (all p < 0.01), and by showing a higher willingness to adopt new technologies (p < 0.001).This study suggests that individuals who are prone to stress-overeating are highly interested in adopting an mHealth app as support. Participants with a high intention to use an mHealth app seem to have a general affinity towards new technology (PIIT) and appear to be more insecure with conflicting motives regarding their diet.This survey was registered in the German Clinical Trials Register (Registration number: DRKS00023984). 

Characterization of adults concerning the use of a hypothetical mHealth application addressing stress-overeating: an online survey

A Conversational & Reflective Approach for Dietary Logging with the Food Pyramid: Chatbot RAINA

: The performance of most current open-domain dialog systems is limited by the (training) dialog corpora due to either generation-based or retrieval-based learning patterns. To circumvent this limitation, we propose PARL, an open-domain dialog system framework using P rompts as A ctions for R einforcement L earning. This framework requires a (ﬁxed) open-domain dialog system as the backbone and trains a behavior policy using reinforcement learning to guide the backbone system to respond appropriately with respect to a given conversation. The action space is deﬁned as a ﬁnite set of behaviors in the form of natural language prompts. Preliminary results show that with the guidance of the behavior policy, the backbone system could generate more engaging and empathetic responses.

PARL: A Dialog System Framework with Prompts as Actions for Reinforcement Learning

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