Interacting with nature may promote mental and physical health. There are multiple ways to interact with nature: indirectly, incidentally, and intentionally. How these types of interactions with nature may be associated with mental and physical health status and health behaviors is unclear. The purpose of this narrative review is to (1) describe the relationship between interactions with nature (indirect, incidental, and intentional) and mental and physical health outcomes and behaviors, (2) identify gaps in the literature, and (3) provide recommendations for future research. Considerable evidence suggests that interacting with nature, indirectly and intentionally, is associated with improvements in mental health and physical exhibitions of mental status. Furthermore, intentionally interacting with nature is associated with engagement in physical activity and gardening is associated with fruit and vegetable consumption. Research suggests that incidentally interacting with nature may be associated with positive mental health status. More research is needed to understand the relationships between incidental interactions with nature and physical health status and behaviors; as well as among all types of interactions with nature and physical health disorders, sleep, and dietary behaviors.

The purpose of this research is to evaluate the feasibility, acceptability, and preliminary efficacy of a household food-waste prevention and minimization intervention, titled the Culinary Home Empowerment for Food Waste Prevention and Minimization (CHEF-WPM), which consists of a culinary education video series for home cooks. The specific aims are to (1) assess the effects of the intervention at a population level across process (feasibility, usage, acceptability, satisfaction) and preliminary efficacy (motivation, opportunity, ability) metrics and (2) assess the effects of the intervention at a community level across process (feasibility, usage, acceptability, satisfaction) and preliminary efficacy (motivation, opportunity, ability, household food waste, sustainable dietary practices) metrics. The intervention includes eight modules, each containing three to five brief videos, as well as downloadable recipes and worksheets. The evaluation will explore the effects of the program through two distinct investigations, namely (1) voluntary access to the intervention content in a population-based setting and (2) intensive delivery of the intervention content as part of a remote class in a community setting. Evaluation of the intervention in the population-based setting will use a single-arm, quasi-experimental post-test only study design. All home cooks who access the videos will be invited to answer a five-question post-video survey about acceptability, satisfaction, and potential implementation of the learning. A separate sample of individuals will be recruited to participate in a more in-depth evaluation (pre- and multiple post-test survey). Evaluation of the community-based intervention will use a mixed methods study design. Findings from the two distinct evaluation studies will be jointly discussed and triangulated to support larger conclusions about the intervention’s desirability, impact on motivation, opportunity, ability, and food waste, and the potential directions for further improvement.

Interacting with nature and a connection to nature (Nature Relatedness [NR]) have been associated with better mental and physical health as well as higher levels of physical activity. However, limited research has explored how interacting with nature and NR may promote healthful dietary behaviors. The purpose of this pilot convergent mixed methods study was to explore the connections between interacting with nature, NR, and dietary choices. For descriptive purposes, we measured participants’ (n = 25) interactions with nature, NR (total, experience, perspective, and self) scores, physical activity, and Healthy Eating Index-2020 scores. In-depth interviews (n = 13) explored the factors that influence interacting with nature and food choices. Quantitative and qualitative data were analyzed separately, and later integrated to yield a more complete understanding of the research inquiry than either form of data would have provided alone. The results from this pilot mixed methods study indicate that there are connections between the variables of interest and that NR may play a pivotal role in how interacting with nature may promote sustainable dietary behaviors. These findings could promote the potential for utilizing nature-based experiences to improve dietary intake.

Interacting with nature, such as spending time in nature and having houseplants, has been associated with positive mental and physical health outcomes and behaviors but limited research has explored dietary behaviors. Therefore, this study examined the relationships among interactions with nature, diet quality, and sustainable dietary patterns. In this explanatory sequential mixed methods study, participants self-reported the frequency and duration of their interactions with nature and completed Diet History Questionnaire II, where Healthy Eating Index-2020 (diet quality) and EAT-Lancet Index (sustainable dietary pattern) scores were calculated. A purposive sample of participants completed an interview. Multiple regression models were used to analyze quantitative data. Qualitative data were thematically analyzed. The data were integrated by connecting and merging. Three hundred adults completed the survey and 30 were interviewed. Positive significant relationships among interactions with nature, diet quality (p < .001), and sustainable dietary patterns (p < .001) were found. Four themes highlighted how interacting with nature may affect dietary intake: engaging with the natural world relaxes the mind, paving the way for healthier eating habits; pursuing health draws us toward nature and positively influences dietary choices; a deep connection to nature sparks a desire to nourish the body with more fruits and vegetables; and thoughtfully participating in the food system promotes healthier choices for personal and planetary health. Integrated findings highlight that mental state moderates and connection to nature mediates the relationships of interest. These results may be used to promote dietary behaviors for personal and planetary health through nature-based interventions.

Background: Sustainable dietary practices can help reduce greenhouse gas emissions and promote planetary health. The importance of investigating how to promote sustainable dietary practices is therefore crucial. Nature Relatedness measures an individual's connection to nature and can predict environmental concern and stewardship. While emerging research has suggested those with a higher degree of Nature Relatedness report the intention to follow more sustainable dietary practices, the relationship between actual dietary intake and Nature Relatedness has yet to be fully explored. Therefore, the purpose of this pilot study was to assess the relationship between diet quality and Nature Relatedness. Methods: In this cross-sectional study, participants across the United States completed the online survey from September to November 2023. Diet History Questionnaire II and Nature Relatedness scale were completed by the participants. Diet quality was assessed using the Healthy Eating Index (HEI)-2020 total and component scores. Nature Relatedness total and subscale scores were computed. Pearson and Spearman Rho correlation coefficients assessed associations between HEI-2020 and Nature Relatedness. Simple linear regression models examined the relationships between HEI-2020 total and component scores and Nature Relatedness (controlling for age, gender, race, and education). Results: Three hundred adults completed the study. HEI-2020 total score was positively associated with Nature Relatedness (p < 0.001). Total fruit, total vegetable, green and beans, and refined grains component scores were positively associated with Nature Relatedness (p < 0.001). Nature Relatedness significantly predicted diet quality and total fruit, total vegetable, greens and beans, and moderation of refined grains consumption. Conclusions: There are positive and significant relationships between diet quality, components of dietary intake that may promote planetary health, and Nature Relatedness. Our findings may be used to inform future research and nutrition intervention programs promoting personal and planetary health through nature-based interventions.

Introduction: Recent studies indicate that interacting with nature is linked to better mental and physical health outcomes and behaviors. Limited research has examined how interactions with nature and dietary behaviors are related. This study aimed to explore the relationships among interactions with nature, diet quality, and sustainable dietary patterns, and to compare barriers and facilitators to these interactions between individuals with high and low diet scores. An ancillary aim was to assess the relative validity of Diet ID™. Methods: In this explanatory sequential mixed methods study, participants (n=300) completed an online survey and two dietary assessments (Diet History Questionnaire II and Diet ID™). Diet quality (Healthy Eating Index-2020) and sustainable diet patterns (EAT-Lancet Index) were measured. A purposeful set of participants (n=30) were interviewed. The relationships of interest and relative validity were assessed by multiple regression models, and correlation and linear regression models, respectively. Interviews were thematically analyzed, and data were integrated. Results: Significant relationships were found between interactions with nature, diet quality (R²=.264, F(9, 266)=10.617, p<.001), and sustainable dietary patterns (R²=.251, F(9, 262)=9.780, p<.001). Four themes highlighted how interacting with nature may affect dietary intake: engaging with the natural world relaxes the mind, paving the way for healthier eating habits; pursuing health draws us toward nature and positively influences dietary choices; a deep connection to nature sparks a desire to nourish the body with more fruits and vegetables; and thoughtfully participating in the food system promotes healthier choices for personal and planetary health. Integrated findings suggest that connection to nature mediates, and mental state moderate these relationships. Five barriers and facilitators to nature interactions were identified: health, weather, time, distance, and social engagement. There were differences in how often barriers and facilitators were discussed between interviewees. Diet quality between dietary assessments were significantly correlated and associated (r_s=0.46, p<.001; R²=0.21, F(1, 298)=80.06, p<.001). Discussion: These results suggest that nature-based experiences may be utilized to promote dietary behaviors for personal and planetary health. This work also identifies distinct barriers and facilitators to interacting with nature, suggesting opportunities for enhanced public health and urban planning. Diet ID™ appears to have reasonable validity.