Evidence of a self-serving bias in people's attributions for their food intake.

People often fail to acknowledge external influences on their food intake, but there might be some circumstances in which people are willing to report that those external factors influenced their behavior. This study examined whether participants who believed that they had overeaten would indicate that the portion size they were served influenced their food intake. Participants (119 women) ate a pasta lunch at two separate sessions, one week apart. At the second session, participants were randomly assigned to receive either a regular portion of pasta (the same portion as the first session) or a large portion of pasta (a portion that was twice the size), and to receive false feedback about their food intake indicating that they had either eaten about the same as or substantially more than they had at the previous session. Participants were then asked to indicate the extent to which the amount of food served influenced how much they ate at that second session. Compared to participants who were informed that they had eaten the same amount across the two sessions, those who were informed that they ate more at the second session reported a stronger influence of the amount of food served if they also received a large portion of pasta, but not if they received a regular portion of pasta. These findings suggest that the willingness to implicate external influences (e.g., portion size) on one's food intake may be driven by a self-serving bias, providing an "excuse" for overeating. However, the external cue must be salient enough to be a plausible explanation for one's behavior.

Omega-3 supplements in the prevention and treatment of youth depression and anxiety symptoms: A scoping review.

INTRODUCTION: Omega-3 supplements may be efficacious in reducing symptoms of depression and anxiety in adults, particularly as an adjunct to antidepressant medication. However, research in young people is limited. Thus, this scoping review aimed to summarise existing evidence on the efficacy of omega-3 supplementation in treating depression and anxiety symptoms in young people aged 14-24. A secondary aim was to determine whether grey literature intended for the general public accurately reflects the evidence. METHOD: Four databases (Cochrane CENTRAL, EmBASE, PsycINFO, PubMed) were searched from inception to 4th August 2021. Eligible peer-reviewed studies were empirical studies which examined the efficacy of omega-3 supplements in preventing/treating anxiety and/or depression symptoms in young people aged 14-24. Risk of bias was assessed for randomised studies using the Cochrane Risk of Bias Tool. Selected grey literature databases were also searched, with eligible sources assessed for quality. A stakeholder group including young people with lived experience of anxiety/depression, parents/carers and mental health professionals informed the research questions and data interpretation. Findings were summarised using narrative synthesis. RESULTS: 17 empirical studies (N = 1240 participants) meeting inclusion criteria were identified. Studies varied in treatment and participant characteristics. In general, the data did not support the view that omega-3 supplements were efficacious in improving symptoms of anxiety or depression in young people aged 14-24. In contrast, most grey literature sources recommended the use of omega-3 supplements in young people. DISCUSSION: Evidence for efficacy of omega-3 supplementation in reducing symptoms of depression and anxiety in young people was inconclusive. More research is needed to identify potential mechanisms and moderators of the effect of omega-3 supplements on depression and anxiety symptoms in young people.

Help-Seeking and Barriers to Service Use amongst Men with Past-Year Suicidal Ideation and not in Contact with Mental Health Services.

OBJECTIVE: Men are less likely than women to engage with formal mental health services for suicidality. We describe the sources of support, barriers to service use, and coping strategies of men with past-year suicidal ideation who are not receiving formal mental health services. METHOD: Australian men experiencing past-year suicidal ideation who also did not receive formal mental health services within the past year (n = 176) completed a survey that assessed help-seeking behaviors, coping strategies and styles, use of general services, barriers to service use, and individual-level characteristics. Analyses included descriptive statistics and bivariate analyses. RESULTS: The most common type of support was self-help resources, and self-reliance was the most common barrier to formal mental health service use. Most participants had seen a GP for non-mental-health-related reasons in the past year. Men who did not seek any help for their suicidality experienced lower instrumental barriers and perceived need for support, and lower levels of certain coping styles. Limitations included a cross-sectional design and small sample size. CONCLUSION: The current study provides insight into the help-seeking experiences of men with past-year suicidality and not receiving formal mental health services. The findings suggest it may be helpful to improve the linkage between online and informal sources of support and evidence-based interventions.HIGHLIGHTSOnline self-help, friends, and partners were the most commonly used sources of help.A subset of men (42%) with lower perceived need for help did not seek any support.Despite no past-year formal mental health service use, 80% of the men had seen a GP.

Compensatory eating after exercise in everyday life: Insights from daily diary studies.

There is considerable variability in how successful people are in losing weight via exercise programs. Experimental research suggests that greater food intake after exercise may be one factor underlying this variability, but no studies have assessed patterns of post-exercise eating behaviour over time in naturalistic settings. Thus, we aimed to assess how exercise and contextual factors (e.g., hunger, presence of others) influence the healthiness and amount of food eaten after exercise in two daily diary studies. In Study 1, participants (n = 48) reported their food intake and exercise daily for 28 days. For each meal, they provided a brief description of the food(s) eaten which were then categorised as healthy, unhealthy, or mixed (neither healthy nor unhealthy) by two independent coders. Study 2 used the same method, but participants (n = 55) also reported the portion size of each meal. Hierarchical linear modelling showed that in Study 1, contrary to expectations, post-exercise meals were less likely to be unhealthy (relative to mixed) than were random meals from non-exercise days (OR = 0.63, p = .011), and that participants ate proportionally fewer unhealthy meals on exercise days compared to non-exercise days (b = -4.27, p = .004). Study 2 replicated these findings, and also found that participants consumed larger meals after exercise in comparison to random meals from non-exercise days (b = 0.25, p < .001). Participants were not consistently engaging in compensatory eating by eating less healthily after exercise compared to on non-exercise days, but they did eat larger portions post-exercise. This work highlights the need for naturalistic methods of assessing compensatory eating, and has the potential to facilitate development of strategies to improve health behaviour regulation.

Predictors of not receiving mental health services among people at risk of suicide: A systematic review.

BACKGROUND: The majority of people who die by suicide are unknown to formal mental health services. The current review identified predictors of non-receipt of mental health services among individuals experiencing suicidal thoughts or behaviours. Such data provides insight into the needs and preferences of these individuals and inform improvements to existing services. METHODS: PsycInfo, PubMed/Medline, CINAHL, and Web of Science were systematically searched from 1st January 1980 up to 20th September 2021. Included studies examined predictors of not receiving formal mental health services among people at risk of suicide. Study quality was assessed by adapting the Joanna-Briggs Institute Checklist for Analytical Cross-Sectional Studies. Findings were presented with narrative synthesis. PROSPERO registration: CRD42021256795. RESULTS: Included studies (n = 35, sample range = 46-19,243) were predominately conducted in the United States. Non-receipt of services in nationally representative studies was varied (25.7-91.8%). Results indicate that non-receipt of mental health services among people with suicidality is associated with minority ethnicity, better perceived general health, lower psychological distress, lower severity of suicidality, no mental health diagnosis, lower perceived need for treatment and lower use of medical services. LIMITATIONS: Limitations included few studies conducted in low-middle income countries, limited literature on key predictors of interest, and exclusion of informal sources of support. CONCLUSION: Individuals with suicidality who are unknown to mental health services have diverse attributes. For some, non-use of services may result from low suicidal distress and perceived need for treatment. Further research is needed to understand why these predictors are associated with service non-use.

People Who Die by Suicide Without Receiving Mental Health Services: A Systematic Review.

INTRODUCTION: The majority of people who die by suicide have never seen a mental health professional or been diagnosed with a mental illness. To date, this majority group has largely been ignored, with most existing research focusing on predictors of suicide such as past suicide attempts. Identifying the characteristics of people who die by suicide without receiving services, often with a fatal first attempt, is crucial to reduce suicide rates through guiding improvements to service pathways and "just in time" interventions. METHODS: In this systematic review, PsycInfo, PubMed, CINAHL, and Web of Science were searched for peer-reviewed articles published from 1980 to 1st March 2021. Included studies examined predictors of non-receipt of formal mental health services among people who died by suicide. Data were extracted from published reports and the quality of included studies was assessed using a modified version of the Joanna Briggs Institute Checklist for Analytical Cross Sectional Studies. This review was registered with PROSPERO, CRD 42021226543. RESULTS: Sixty-seven studies met inclusion criteria, with sample sizes ranging from 39 to 193,152 individuals. Male sex, younger or older age, and rural location were consistently associated with non-receipt of mental health services. People not receiving mental health services were also less likely to have a psychiatric diagnosis, past suicidal behavior or contact with general health services, and more likely to use violent means of suicide. There was some evidence that minority ethnicity and psychosocial stressors were associated with service non-receipt. CONCLUSION: People who die by suicide without receiving mental health services are likely to have diverse profiles, indicating the need for multifaceted approaches to effectively support people at risk of suicide. Identifying the needs and preferences of individuals who are at risk of suicide is crucial in developing new support pathways and services, and improving the quality of existing services. SYSTEMATIC REVIEW REGISTRATION: http://www.crd.york.ac.uk/PROSPERO/display_record.asp?ID=CRD42021226543.

Development of a scale to measure reasons for eating less healthily after exercise: the compensatory unhealthy eating scale.

OBJECTIVE: Patterns of 'compensatory eating' following exercise are likely to be harmful for long-term health and counterproductive for weight loss goals. However, little is known about reasons why people eat unhealthily after exercising. Thus, we aimed to develop a measure that assesses reasons why people engage in compensatory unhealthy eating. METHOD: A multi-stage approach using exploratory and confirmatory factor analysis was used to develop and replicate a scale and validate its psychometric properties in three different samples. Participants (total N = 814) rated their agreement with statements capturing different reasons for eating less healthily after exercise. RESULTS: Factor analysis revealed four distinct factors underlying compensatory eating: Reward for Effort, Permission to Consume, Need to Consume, and Reduced Self-Control. The resulting Compensatory Unhealthy Eating Scale (CUES) had good internal consistency and convergent validity. CONCLUSION: The CUES has utility as a tool to assess compensatory eating behaviour. Further research should examine who is most likely to compensate and under what circumstances. Broadening current knowledge of compensatory eating after exercise may facilitate development of strategies to improve health behaviour regulation.

Hunger, taste, and normative cues in predictions about food intake.

Normative eating cues (portion size, social factors) have a powerful impact on people's food intake, but people often fail to acknowledge the influence of these cues, instead explaining their food intake in terms of internal (hunger) or sensory (taste) cues. This study examined whether the same biases apply when making predictions about how much food a person would eat. Participants (n = 364) read a series of vignettes describing an eating scenario and predicted how much food the target person would eat in each situation. Some scenarios consisted of a single eating cue (hunger, taste, or a normative cue) that would be expected to increase intake (e.g., high hunger) or decrease intake (e.g., a companion who eats very little). Other scenarios combined two cues that were in conflict with one another (e.g., high hunger + a companion who eats very little). In the cue-conflict scenarios involving an inhibitory internal/sensory cue (e.g., low hunger) with an augmenting normative cue (e.g., a companion who eats a lot), participants predicted a low level of food intake, suggesting a bias toward the internal/sensory cue. For scenarios involving an augmenting internal/sensory cue (e.g., high hunger) and an inhibitory normative cue (e.g., a companion who eats very little), participants predicted an intermediate level of food intake, suggesting that they were influenced by both the internal/sensory and normative cue. Overall, predictions about food intake tend to reflect a general bias toward internal/sensory cues, but also include normative cues when those cues are inhibitory. If people are systematically biased toward internal, sensory, and inhibitory cues, then they may underestimate how much food they or other people will eat in many situations, particularly when normative cues promoting eating are present.

Self-reported overeating and attributions for food intake.

OBJECTIVE: We examined whether people's attributions for their eating behaviour differ according to whether they believe they have eaten more, less or about the same as they normally would. DESIGN: Participants were served a small or large portion of pasta for lunch. Afterwards, they were asked to compare how much they ate in the study to how much they normally eat for lunch, resulting in three intake-evaluation categories: 'ate less', 'ate about the same' or 'ate more'. MAIN OUTCOME MEASURES: How much participants ate; the extent to which they attributed their food intake to an internal cue (i.e. hunger) and an external cue (i.e. the amount of food served). RESULTS: Participants served a large portion ate more than those served a small portion, but the magnitude of the portion-size effect did not vary across intake-evaluation categories. Furthermore, although participants in all groups indicated that their hunger influenced how much they ate, only those in the 'ate more' group indicated that the amount of food available influenced how much they ate. CONCLUSION: People appear to be willing to explain their food intake in terms of an external cue only when they believe that they have eaten more than they normally would.

The portion size effect on food intake is robust to contextual size information.

Larger portion sizes have consistently been shown to lead to greater food intake. However, studies of the portion size effect typically provided participants with a single portion of food at a time without any objective information about the size of the portion, and hence failed to consider the potential significance of contextual size information. In order to investigate whether contextual size information moderates the portion size effect, participants were served small or large portions of pasta for lunch in the presence or absence of contextual size information. Study 1 found that the portion size effect on food intake was robust to contextual size information. Study 2 replicated this finding in an online paradigm, showing that contextual size information also had no influence on prospective intake, even when participants chose the portion size they preferred. Both studies also showed that participants' perceptions of how much was appropriate to eat mediated the effect of portion size on intake. A practical implication of our findings is that modifying consumption norms may be an effective way to promote healthier consumer food decisions.

The parallel impact of episodic memory and episodic future thinking on food intake.

This research examined the effects of both episodic memory and episodic future thinking (EFT) on snack food intake. In Study 1, female participants (n = 158) were asked to recall their lunch from earlier in the day, to think about the dinner they planned to have later in the day, or to think about a non-food activity before taking part in a cookie taste test. Participants who recalled their lunch or who thought about their dinner ate less than did participants who thought about non-food activities. These effects were not explained by group differences in the hedonic value of the food. Study 2 examined whether the suppression effect observed in Study 1 was driven by a general health consciousness. Female participants (n = 74) were asked to think about their past or future exercise (or a non-exercise activity), but thinking about exercise had no impact on participants' cookie consumption. Overall, both thinking about past food intake and imagining future food intake had the same suppression effect on participants' current food intake, but further research is needed to determine the underlying mechanism.