Reducing meat consumption and following plant-based diets: current evidence and future directions to inform integrated transitions

Background: There is increasing consensus that transitioning towards reduced meat consumption and more plant-based diets is a key feature to address important health and sustainability challenges. However, relevant evidence that may inform these transitions remains fragmented with no overarching rationale or theoretical framework, which limits the ability to design and deliver coordinated efforts to address these challenges. Scope and approach: Eleven databases were systematically searched using sets of keywords referring meat curtailment, meat substitution and plant-based diets, as well as consumer choice, appraisal or behavior (2602 articles selected for title and abstract screening; 161 full-texts assessed for eligibility; 110 articles selected for extraction and coding). Barriers and enablers were identified and integrated into an overarching framework (i.e., COM-B system), which conceptualizes behavior as being influenced by three broad components: capability, opportunity and motivation. Key findings and conclusions: This review mapped potential barriers and enablers in terms of capability, opportunity, and motivation to reduce meat consumption and follow more plant-based diets. These included lack of information for consumers and difficulty to acquire new cooking skills (barrier, capability), changes in service provision in collective meal contexts (enabler, opportunity), and positive taste expectations for plant-based meals (enabler, motivation). Evidence on variables referring to the motivation domain is clearly increasing, but there is a striking need for studies that include capability and opportunity variables as well. The results of this review are relevant to a variety of fields and audiences interested in promoting sustainable living and health improvements through dietary choice.info:eu-repo/semantics/acceptedVersio

A fertile ground for ambiguities: casual sexual relationships among Portuguese emerging adults

Casual sexual relationships (CSRs) are frequent relationship experiences in young adulthood that provide opportunities for many to explore sexual relationships and to construct their sexual identity. Empirical research on casual sex is still lacking outside North-American countries, despite evidence pointing to the need to contextualize sexual interactions in their own sociocultural context. In order to better understand casual sexual relationships, these should be examined in with novel samples in other countries where a “hookup culture” as it is described in the North-American university campus is apparently absent. Through a qualitative study, we explored what casual sexual relationships consist of according to the perceptions of Portuguese college students (N = 35). The thematic analysis of eight focus group interviews resulted in the generation of six themes, three of which are presented here: (1) What CSRs are, regarding features and types of CSRs, (2) Why individuals engage in CSRs, focusing on positive and negative motivations, and (3) What one gets from CSRs, focusing on positive and negative outcomes of CSRs. Our findings showed that Portuguese emerging adults are familiarized with CSRs, particularly with one-night stand, friends with benefits and “curte”/hookup. Sexual interactions associated with other CSRs, such as booty call or fuck buddies, were mentioned but rarely associated with a distinctive label and established characteristics. Participants described the CSRs in a partially overlapping manner presenting some areas of ambiguity, such as with regard to sexual exclusivity and still-unlabeled sexual interactions. CSRs are generally evaluated as positively motivated and mainly beneficial. This study adds to the literature around casual sexual relationships by exploring and describing CSRs in a different sociocultural context, as well as indicating directions for future research in order to better prepare and empower young adults in their sexual and relational trajectories.info:eu-repo/semantics/publishedVersio

The effect of mobile text messages and a novel floss holder on gingival health: a randomized control trial

Purpose: The purpose of this study was to evaluate the effects of using mobile text messages and a novel floss holder as compared to finger flossing or the novel floss holder alone, on the psychological, behavioral, and clinical parameters of patients with gingivitis.Methods: A total 165 adults were assessed for eligibility and 144 met the criteria for randomization into three groups: Finger Floss (FF, n=43), Novel Floss Holder (NFH, n= 40), and Novel Floss Holder plus Text Messages (NFH+TM, n= 61) following a dental hygiene consultation appointment. Gingival bleeding points were measured on probing (BOMP) at baseline and four months later by a calibrated dental hygienist, blinded to the experimental groups. Participants also self-reported their oral hygiene behaviors, and indicated psychological determinants of behavior change prior to the dental hygiene consultation and at four months. Descriptive statistics and repeated measures analysis of variance (ANOVA) were used to compare groups over time.Results: Two subjects dropped out of the study making the total number of participants 142. At the four month follow-up, the NFH group and the NFH+TM groups demonstrated significantly higher levels of self-reported flossing, action self-efficacy, intention, action planning, and action control. The NFH+TM group showed lower levels of bleeding and higher levels of oral hygiene and recovery self-efficacy than the other groups, in addition to higher levels of maintenance self-efficacy as compared to the FF group.Conclusions: The use of a novel floss holder, NFH, was shown to improve the behavioral and psychological determinants of periodontal health four months after introduction of the device. However the clinical measures of BOMP only improved significantly when used in conjunction with text messages (NFH+TM). The use of a consciousness awareness technique,TMs, in combination with a novel device, may help patients to reach therapeutic objectives and contribute to the management of periodontal pathologies such as gingivitis.info:eu-repo/semantics/acceptedVersio

The impact of sugar-related claims on perceived healthfulness, caloric value and expected taste of food products

Food packaging usually includes multiple cues, including claims about nutrients that may modulate how the consumer perceives (and behaves towards) the product. In the current work, we systematically examined how different types of claims about sugar influenced the perception of food product categories (i.e., yogurts, ice creams, cookies, and breakfast cereals). In two experiments (combined n = 406), participants were asked to evaluate the perceived healthfulness, caloric value, and expected taste of products with (vs. without) sugar-related claims. Specifically, the claims were on the sugar content (“0% sugar”, “sugar-free”, “no added sugars”, “low sugar” - Experiment 1) or on the type of sugars or sweeteners of natural origin (“sucrose”, “cane sugar”, “honey” and “stevia” - Experiment 2). Experiment 1 revealed that all products with sugar-related claims were rated as healthier, less caloric, and less tasty than the regular alternatives. Still, products with the “low sugar” claim were perceived as the least healthy, most caloric, and tastiest. In Experiment 2, we observed that products with “stevia” claim were rated as healthier, less caloric, and less tasty than regular products. In both experiments, the frequency of consumption of products with sugar-related claims was positively associated with the general perception of these products, the influence of nutritional information on consumption decisions, attention to sugar intake, and interest in nutrition. Overall, our results show that sugar-related claims may influence consumer's perceptions about food products, but the direction of that influence depends on the type of claim and evaluative dimension.info:eu-repo/semantics/acceptedVersio

A qualitative study about college students' attitudes, knowledge and perceptions regarding sugar intake

Excessive sugar intake has been associated with multiple health conditions (e.g., higher risk for non-communicable diseases). Hence, health organizations have issued guidelines defining the maximum daily intake of free or added sugars. However, data from several countries suggests that these guidelines are rarely met, particularly by young adults. For example, almost half of Portuguese adolescents and young adults exceed the recommended sugar intake. In this work, we aim to further explore college students' attitudes, knowledge, and perceptions about sugar intake, as well as about sugar intake guidelines. A thematic analysis on data from five focus groups (N = 40) indicated that participants reported difficulty in the comprehension of added/free sugars definition and sugar intake recommendations. Overall, attitudes toward sugar were ambivalent. Sugar was simultaneously perceived as pleasurable and needed, but also as addictive and harmful. Although aware of the potential negative health outcomes associated with excessive sugar intake, most participants did not perceive being at risk due to their youth, exercise habits, or type of diet. The few concerns expressed were mostly associated with the negative impact of high sugar intake on body image (e.g., weight gain). The main barriers to reducing sugar intake identified were environmental (e.g., time restrictions, food available at the university). Still, participants could identify several individual strategies to effectively regulate sugar intake. By identifying knowledge gaps and sources of bias related to sugar consumption, our findings are useful to inform future interventions aiming to address the problem of high sugar intake among university students.info:eu-repo/semantics/acceptedVersio

Formative research on HAPA model determinants for fruit and vegetable intake: Target beliefs for audiences at different stages of change

Theoretically-driven health communications are needed to promote fruit and vegetable intake among people at different stages of change. The Health Action Process Approach (HAPA), a clearly specified model and good predictor of fruit and vegetable intake, was used as a framework to guide a formative research for the development of health messages targeting individuals at either a non-intentional or intentional stage of change. A mix-method approach was used, combining eight focus groups (n = 45) and a questionnaire (n = 390). Target beliefs for people at both stages were identified under five theoretical constructs (risk perception, outcome expectancies, action planning, coping planning and self-efficacy). Highlighting health problems due to low fruit and vegetable consumption, health benefits, weight reduction and pleasure, and enhancing self-efficacy to increase fruit and vegetable intake are the main guidelines for designing messages to non-intenders. For intenders, messages should reassure them of their ability to maintain adequate fruit and vegetable consumption, outline specific plans for increased consumption, identify barriers such as preparation, forgetting or being tired and unwilling to eat fruit and vegetables, and suggest strategies to overcome them, such as presenting some practical examples on how to include fruit and vegetables when eating out

Programa Nacional para a Promoção da Atividade Física: 2020

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Nanoscale characterization of Co and Co-B catalytic coatings before and after catalytic tests for the sodium borohydride hydrolysis

Capítulo tomado de https://onlinelibrary.wiley.com/doi/pdf/10.1002/9783527808465.EMC2016.5347Spanish MINECO (CTQ2012-32519 and CTQ2015-65918)CONSOLIDER FUNCOAT+ (MAT2015-69035-REDC)Junta de Andalucía (PE2012-TEP862)CSIC (PIE201460E018)Laboratory for Nanoscopies and Spectroscopies (LANE) at the ICMSTalent-Hub Program funded by the Junta de Andalucía and the European Commission under the Co-funding of the 7thFramework Program in the People Program (Marie Curie Special Action

React-COVID 2.0: inquérito sobre alimentação e atividade física em contexto da pandemia COVID-19

info:eu-repo/semantics/publishedVersio