The Online Cancer Nutrition Misinformation: A framework of behavior change based on exposure to cancer nutrition misinformation

Selling Misleading "Cancer Cure" Books on Amazon: Systematic Search on Amazon.com and Thematic Analysis

BACKGROUND

While the evidence base on web-based cancer misinformation continues to develop, relatively little is known about the extent of such information on the world's largest e-commerce website, Amazon. Multiple media reports indicate that Amazon may host on its platform questionable cancer-related products for sale, such as books on purported cancer cures. This context suggests an urgent need to evaluate Amazon.com for cancer misinformation.

OBJECTIVE

This study sought to (1) examine to what extent are misleading cancer cure books for sale on Amazon.com and (2) determine how cancer cure books on Amazon.com provide misleading cancer information.

METHODS

We searched "cancer cure" on Amazon.com and retrieved the top 1000 English-language book search results. We reviewed the books' descriptions and titles to determine whether the books provided misleading cancer cure or treatment information. We considered a book to be misleading if it suggested scientifically unsupported cancer treatment approaches to cure or meaningfully treat cancer. Among books coded as misleading, we conducted an inductive latent thematic analysis to determine the informational value the books sought to offer.

RESULTS

Nearly half (494/1000, 49.4%) of the sampled "cancer cure" books for sale on Amazon.com appeared to contain misleading cancer treatment and cure information. Overall, 17 (51.5%) out of 33 Amazon.com results pages had 50% or more of the books coded as misleading. The first search result page had the highest percentage of misleading books (23/33, 69.7%). Misleading books (n=494) contained eight themes: (1) claims of efficacious cancer cure strategies (n=451, 91.3%), (2) oversimplifying cancer and cancer treatment (n=194, 39.3%), (3) falsely justifying ineffective treatments as science based (n=189, 38.3%), (4) discrediting conventional cancer treatments (n=169, 34.2%), (5) finding the true cause of cancer (n=133, 26.9%), (6) homogenizing cancer (n=132, 26.7%), (7) discovery of new cancer treatments (n=119, 24.1%), and (8) cancer cure suppression (n=82, 16.6%).

CONCLUSIONS

The results demonstrate that misleading cancer cure books are for sale, visible, and prevalent on Amazon.com, with prominence in initial search hits. These misleading books for sale on Amazon can be conceived of as forming part of a wider, cross-platform, web-based information environment in which misleading cancer cures are often given prominence. Our results suggest that greater enforcement is needed from Amazon and that cancer-focused organizations should engage in preemptive misinformation debunking.

Why fall for misinformation? Role of information processing strategies, health consciousness, and overconfidence in health literacy

Health misinformation, defined as false or misleading claims lacking scientific evidence, poses a significant threat to public health. This paper investigates factors associated with the failure to discern misinformation, including health consciousness, information processing strategies, and inaccurate self-assessments of health literacy. Through an online experiment involving 707 English-speaking U.S. participants (mean age = 43 years, 56.2% female), we found that misinformation beliefs about nutrition, vaccination, vaping, and cancer were significantly correlated, implying susceptibility across health topics. Greater susceptibility was associated with higher health consciousness, lower objective health literacy, more elaboration, and more selective scanning. Results provided evidence for the Dunning-Kruger effect and metacognitive monitoring errors, whereby confident individuals were unaware of inadequate health literacy and showed poor misinformation identification. Findings suggest that promoting both health literacy education and cognitive reflection skills among the general adult population could empower them to more critically evaluate online health information.

Diet and physical activity behaviors: how are they related to illness perceptions, coping, and health-related quality of life in young people with hereditary cancer syndromes?

Individuals with inherited cancer syndromes, such as Li-Fraumeni syndrome (LFS), may be motivated to adopt health-protective behaviors, such as eating more fruits and vegetables and increasing physical activity. Examining these health behaviors among young people with high lifetime genetic cancer risk may provide important insights to guide future behavioral interventions that aim to improve health-related quality of life (HRQOL). We used a self-regulatory framework to investigate relationships among diet and physical activity behaviors and psychosocial constructs (e.g., illness perceptions, coping, HRQOL) in adolescents and young adults (AYAs; aged 15-39 years) with LFS. This longitudinal mixed-methods study included 57 AYAs aged 16-39 years at enrollment), 32 (56%) of whom had a history of one or more cancers. Participants completed one or two telephone interviews and/or an online survey. We thematically analyzed interview data and conducted regression analyses to evaluate relationships among variables. AYAs described adopting healthy diet and physical activity behaviors to assert some control over health and to protect HRQOL. More frequent use of active coping strategies was associated with greater reported daily fruit and vegetable intake. Greater reported physical activity was associated with better quality of psychological health. Healthy diet and physical activity behaviors may function as LFS coping strategies that confer mental health benefits. Clinicians might emphasize these potential benefits and support AYAs in adopting health behaviors that protect multiple domains of health. Future research could use these findings to develop behavioral interventions tailored to AYAs with high genetic cancer risk.

Mediterranean Diet Information on TikTok and Implications for Digital Health Promotion Research: Social Media Content Analysis

BACKGROUND

The Mediterranean diet has been linked to reduced risk for several cardiometabolic diseases. The lack of a clear definition of the Mediterranean diet in the scientific literature and the documented proliferation of nutrition misinformation on the internet suggest the potential for confusion among consumers seeking web-based Mediterranean diet information.

OBJECTIVE

We conducted a social media content analysis of information about the Mediterranean diet on the influential social media platform, TikTok, to examine public discourse about the diet and identify potential areas of misinformation. We then analyzed these findings in the context of health promotion to identify potential challenges and opportunities for the use of TikTok in promoting the Mediterranean diet for healthy living.

METHODS

The first-appearing 202 TikTok posts that resulted from a search of the hashtag #mediterraneandiet were downloaded and qualitatively examined. Post features and characteristics, poster information, and engagement metrics were extracted and synthesized across posts. Posts were categorized as those created by health professionals and those created by nonhealth professionals based on poster-reported credentials. In addition to descriptive statistics of the entire sample, we compared posts created by professionals and nonprofessionals for content using chi-square tests.

RESULTS

TikTok posts varied in content, but posts that were developed by health professionals versus nonprofessionals were more likely to offer a definition of the Mediterranean diet (16/106, 15.1% vs 2/96, 2.1%; P=.001), use scientific citations to support claims (26/106, 24.5% vs 0/96, 0%; P<.001), and discuss specific nutrients (33/106, 31.1% vs 6/96, 6.3%; P<.001) and diseases related to the diet (27/106, 25.5% vs 5/96, 5.2%; P<.001) compared to posts created by nonhealth professionals.

CONCLUSIONS

Social media holds promise as a venue to promote the Mediterranean diet, but the variability in information found in this study highlights the need to create clear definitions about the diet and its components when developing Mediterranean diet interventions that use new media structures.

Cancer: A model topic for misinformation researchers

Although cancer might seem like a niche subject, we argue that it is a model topic for misinformation researchers, and an ideal area of application given its importance for society. We first discuss the prevalence of cancer misinformation online and how it has the potential to cause harm. We next examine the financial incentives for those who profit from disinformation dissemination, how people with cancer are a uniquely vulnerable population, and why trust in science and medical professionals is particularly relevant to this topic. We finally discuss how belief in cancer misinformation has clear objective consequences and can be measured with treatment adherence and health outcomes such as mortality. In sum, cancer misinformation could assist the characterization of misinformation beliefs and be used to develop tools to combat misinformation in general.

Enhancing the provision of cancer nutrition information to support care through experience-based co-design: a mixed-methods study

PURPOSE

Nutrition is essential within cancer care, yet patient and carer access to nutrition care and information is variable. This study aimed to (1) investigate patient and carer access and perceptions, and health professional views and practices, relating to cancer nutrition information and care; and (2) co-design interactive resources to support optimal nutrition care.

METHODS

Patients and carers completed a survey regarding access to nutrition care and information. Seven multidisciplinary health service teams were invited to participate in a survey and focus group to assess barriers and enablers in nutrition practices. Focus groups were recorded, transcribed and thematically analyzed. Eligible patients, carers, and health professionals were invited to four virtual workshops utilizing experience-based co-design methods to identify nutrition priority areas and design resources. Workshop participant acceptability of the resources was measured.

RESULTS

Of 104 consumer survey respondents (n = 97 patients, n = 7 carers), 61% agreed that it "took too much time to find evidence-based nutrition and cancer information", and 46% had seen a dietitian. Thirty-four of 38 health professionals completed the survey and 30 participated in a focus group, and it was identified the greatest barriers to delivering nutrition care were lack of referral services, knowledge or skill gaps, and time. Twenty participants (n = 10 patients and carers, n = 10 health professionals) attended four workshops and co-designed a suite of 46 novel resources rated as highly acceptable.

CONCLUSION

Improved communication, training, and availability of suitable resources could improve access to and support cancer nutrition information and care. New, co-designed cancer nutrition resources were created and deemed highly acceptable to patients, carers, and health professionals.

#4Corners4Health Social Media Cancer Prevention Campaign for Emerging Adults: Protocol for a Randomized Stepped-Wedge Trial

BACKGROUND

Many emerging adults (EAs) are prone to making unhealthy choices, which increase their risk of premature cancer morbidity and mortality. In the era of social media, rigorous research on interventions to promote health behaviors for cancer risk reduction among EAs delivered over social media is limited. Cancer prevention information and recommendations may reach EAs more effectively over social media than in settings such as health care, schools, and workplaces, particularly for EAs residing in rural areas.

OBJECTIVE

This pragmatic randomized trial aims to evaluate a multirisk factor intervention using a social media campaign designed with community advisers aimed at decreasing cancer risk factors among EAs. The trial will target EAs from diverse backgrounds living in rural counties in the Four Corners states of Arizona, Colorado, New Mexico, and Utah.

METHODS

We will recruit a sample of EAs (n=1000) aged 18 to 26 years residing in rural counties (Rural-Urban Continuum Codes 4 to 9) in the Four Corners states from the Qualtrics' research panel and enroll them in a randomized stepped-wedge, quasi-experimental design. The inclusion criteria include English proficiency and regular social media engagement. A social media intervention will promote guideline-related goals for increased physical activity, healthy eating, and human papillomavirus vaccination and reduced nicotine product use, alcohol intake, and solar UV radiation exposure. Campaign posts will cover digital and media literacy skills, responses to misinformation, communication with family and friends, and referral to community resources. The intervention will be delivered over 12 months in Facebook private groups and will be guided by advisory groups of community stakeholders and EAs and focus groups with EAs. The EAs will complete assessments at baseline and at 12, 26, 39, 52, and 104 weeks after randomization. Assessments will measure 6 cancer risk behaviors, theoretical mediators, and participants' engagement with the social media campaign.

RESULTS

The trial is in its start-up phase. It is being led by a steering committee. Team members are working in 3 subcommittees to optimize community engagement, the social media intervention, and the measures to be used. The Stakeholder Organization Advisory Board and Emerging Adult Advisory Board were formed and provided initial input on the priority of cancer risk factors to target, social media use by EAs, and community resources available. A framework for the social media campaign with topics, format, and theoretical mediators has been created, along with protocols for campaign management.

CONCLUSIONS

Social media can be used as a platform to counter misinformation and improve reliable health information to promote health behaviors that reduce cancer risks among EAs. Because of the popularity of web-based information sources among EAs, an innovative, multirisk factor intervention using a social media campaign has the potential to reduce their cancer risk behaviors.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05618158; https://classic.clinicaltrials.gov/ct2/show/NCT05618158.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

PRR1-10.2196/50392.

Debunking nutrition myths: An experimental test of the 'truth sandwich' text format

OBJECTIVES

Myths about diet and nutrition are widespread and may seriously impact health and well-being. This study tests whether texts in a truth sandwich format, that is, texts presenting two blocks of factual, correcting information around a text block listing a myth and identifying it as false, are effective in reducing agreement with a range of nutrition myths.

DESIGN

Prestudy: observational survey; main study: 4 Text × 6 statement mixed experimental design.

METHODS

Out of 13 nutrition myths that were presented to 58 participants in a prestudy, the six most prevalent myths were selected for the main study. In the preregistered main study, 302 participants were randomly assigned to either reading one of three texts in the truth sandwich format addressing a nutrition myth or reading a text about healthy eating (control condition) before rating their agreement with a total of six nutrition myths.

RESULTS

Participants agreed less with the specific myth targeted by the truth sandwich text, while controls were not differentiating between them.

CONCLUSIONS

Thus, truth sandwiches are effective in reducing agreement with myths and can be harnessed to promote evidence-based dietary practices to promote health in the population.

Designing a Digital Culinary Education Intervention for Parents With Low Income

OBJECTIVE

To examine cooking practices, online information-seeking habits, and intervention preferences among parents with low income to inform the development of a digital cooking intervention on the basis of the Healthy Cooking Index.

METHODS

This formative research study included a brief survey followed by in-depth interviews (from February to April, 2021) with parents of a child aged 6-11 years with low income (n = 20; 100% female, 70% African American or Hispanic White). Interview transcripts were analyzed using a semistructured hybrid coding approach.

RESULTS

Three main themes were identified to inform the development of the intervention: (1) current Healthy Cooking Index behaviors, (2) preferences for digital cooking intervention content, and (3) design and delivery preferences. A 7-step process was used to develop the intervention and integrate qualitative findings.

CONCLUSIONS AND IMPLICATIONS

Online culinary programs targeting parents with low income may consider short, mobile-friendly video formats and focus on easy-to-prepare recipes adaptable to family preferences.

Psychosocial Factors and the Need for Multidisciplinary Support in Nutrition Counselling for Cancer Chemotherapy Patients

This study aims to identify the background factors and experiences of patients with cancer with eating-related problems who require nutrition counselling. Using a mixed-methods approach, this secondary analysis study was conducted on patients with head and neck, oesophageal, gastric, colorectal, or lung cancers who were receiving outpatient chemotherapy. They completed a questionnaire measuring nutrition impact symptoms, eating-related distress, and quality of life (QOL). Patients who required nutrition counselling were interviewed to identify the specific issues they experienced. We reported on nutritional status and nutrition impact symptoms in a previous study. Of the 151 participants, 42 required nutrition counselling. Background factors associated with nutrition counselling were related to the following psychosocial variables: small number of people in the household, undergoing treatment while working, low QOL, and eating-related distress. Four themes were extracted from the specific issues experienced by patients: motivation for self-management, distress from symptoms, seeking understanding and sympathy, and anxiety and confusion. The desire for nutrition counselling was attributable to 'anxiety caused by the symptoms' and 'confusion about the information on eating'. Healthcare professionals should promote multidisciplinary collaboration after considering the factors associated with the required nutrition counselling to provide nutritional support.

Patterns of home cooking practices among participants in a behavioral weight loss program: A latent class analysis

Cooking education is a popular approach to health promotion; however, the relationship between specific cooking practices, diet and weight loss is not well understood. The goal of this study was to 1) evaluate the relationship between cooking practices, dietary behaviors, and weight loss after a weight loss intervention and 2) identify patterns of cooking practices and their implications on weight loss. Using a quasi-experimental, single-arm cohort study design, we analyzed data from 249 adults with overweight/obesity who were participating in a weight loss program. Participants self-reported demographics, height and weight, and diet and physical activity behaviors. The Health Cooking Questionnaire 2 (HCQ2) was used to collect information on cooking practices post intervention. The HCQ2 responses were used to generate Healthy Cooking Index (HCI) scores, a summative measure of cooking practices with the potential to influence health. Latent Class Analysis (LCA) was utilized to define distinct patterns of cooking behaviors. Cooking patterns and HCI scores were examined relative to participant demographics, dietary behaviors, and weight loss. HCI scores post-intervention were positively associated with age, weight loss, and favorable dietary behaviors in this study. The LCA revealed three distinct patterns of cooking behavior (Red Meat Simple, Vegetarian Simple, Health & Taste Enhancing). The Red Meat Simple cooking pattern was associated with less weight loss compared to other patterns. The findings of this study set the foundation for more research on cooking education as a method for improving weight loss outcomes in the context of behavioral interventions.

Realfood and Cancer: Analysis of the Reliability and Quality of YouTube Content

This study analyzes the quality and reliability of videos related to nutrition and cancer on YouTube.

STUDY DESIGN

An observational, retrospective, cross-sectional, time-limited study analyzing activity on the social network YouTube was proposed.

METHODS

The information from the videos was extracted through an API search tool, using the NodeXL software. The criteria to select the videos on YouTube were the keywords "real food", "realfood", and "cancer" and the hashtags #realfood and #cancer were present, videos in English and videos available on 1 December 2022.

RESULTS

The DISCERN value in the total number of videos viewed was 2.25 (±0.88) points, indicating low reliability. The videos uploaded by HRU represented only 20.8%. Videos suggesting that the use of foods defined as "real food" could cure cancer without the intervention of any other treatment accounted for 12.5%. Videos that provided external links to scientific/technical evidence verifying the information represented only 13.89% of the total number of videos. Of these videos, 70% corresponded to HRU. The DISCERN value for videos from HRU users was 3.05 (0.88), a value that reflects a good reliability of videos from these users.

CONCLUSIONS

This study provides information on the content and quality of the videos that we can find on YouTube. We found videos of non-health users who do not base their content on any scientific evidence, with the danger that this entails for the population, but it also highlights that the videos published by HRU have greater reliability and quality, being better perceived by the population, so it is important to encourage healthcare professionals and health institutions to share verified information on YouTube.

Co-design of a cancer nutrition care pathway by patients, carers, and health professionals: the CanEAT pathway

PURPOSE

Limited practical resources exist to guide optimal nutrition care for patients, carers, and health professionals (HPs). This study aimed to co-design a cancer nutrition care pathway to guide and improve the provision of consistent, evidence-based care with consumers and HPs.

METHODS

This study utilised an experienced-based co-design (EBCD) approach over five stages. Stage 1 involved stakeholder engagement and a literature review. Stage 2 included a survey and focus groups with patients/carers. Co-design workshops were conducted within stage 3, key stakeholder consultation within stage 4, and the finalisation and dissemination of the cancer nutrition care pathway formed stage 5. Results of stages 3 to 5 are the focus of this paper.

RESULTS

Two co-design workshops were held with patients, carers, and HPs (n = 32 workshop 1; n = 32 workshop 2), who collectively agreed on areas of focus and key priorities. Following this, a consultation period was completed with patients, carers, and HPs (n = 45) to refine the pathway. The collective outcome of all study stages was the co-design of a cancer nutrition care pathway (the CanEAT pathway) defining optimal cancer nutrition care that combines evidence-based practice tips into a centralised suite of resources, tools, and clinical guidance.

CONCLUSION

The CanEAT pathway was co-designed by patients, carers, and HPs. The EBCD approach is a meaningful way to develop targeted improvements in cancer care. The CanEAT pathway is freely available to guide and support patients, carers, and HPs to aid the implementation of optimal nutrition care into clinical practice.