Manufacturing doubt: Assessing the effects of independent vs industry-sponsored messaging about the harms of fossil fuels, smoking, alcohol, and sugar sweetened beverages

Ultra-Processed Foods and Mental Health: Where Do Eating Disorders Fit into the Puzzle?

Ultra-processed foods (UPFs) like pastries, packaged snacks, fast foods, and sweetened beverages have become dominant in the modern food supply and are strongly associated with numerous public health concerns. While the physical health consequences of UPF intake have been well documented (e.g., increased risks of cardiometabolic conditions), less empirical discussion has emphasized the mental health consequences of chronic UPF consumption. Notably, the unique characteristics of UPFs (e.g., artificially high levels of reinforcing ingredients) influence biological processes (e.g., dopamine signaling) in a manner that may contribute to poorer psychological functioning for some individuals. Importantly, gold-standard behavioral lifestyle interventions and treatments specifically for disordered eating do not acknowledge the direct role that UPFs may play in sensitizing reward-related neural functioning, disrupting metabolic responses, and motivating subsequent UPF cravings and intake. The lack of consideration for the influences of UPFs on mental health is particularly problematic given the growing scientific support for the addictive properties of these foods and the utility of ultra-processed food addiction (UPFA) as a novel clinical phenotype endorsed by 14-20% of individuals across international samples. The overarching aim of the present review is to summarize the science of how UPFs may affect mental health, emphasizing contributing biological mechanisms. Specifically, the authors will (1) describe how corporate-sponsored research and financial agendas have contributed to contention and debate about the role of UPFs in health; (2) define UPFs and their nutritional characteristics; (3) review observed associations between UPF intake and mental health conditions, especially with depression; (4) outline the evidence for UPFA; and (5) describe nuanced treatment considerations for comorbid UPFA and eating disorders.

Misinformation surrounding sodium reduction for blood pressure: content analysis of Japanese posts on X

This content analysis aimed to assess misinformation themes regarding sodium reduction and blood pressure on X with the goal of providing strategies to address and debunk such misinformation. A total of 531 posts were manually coded into sodium-related misinformation themes, with inclusion criteria for posts asserting no association between sodium reduction and hypertension or claiming consuming sodium is beneficial for health. Numbers and post frequencies per misinformation theme were calculated. Post characteristics, including information sources, advertisements and narratives, were coded, and a correlation analysis was conducted to assess their association with each misinformation theme. Fourteen sodium-related misinformation themes were identified and consistently disseminated on X. The predominant theme, 'Natural Salt', accounted for 37.7% (n = 200), reaching 1.6 million followers, followed by 'Reducing salt could be bad for my health' theme, comprising 28.6% (n = 152) and reaching 1.5 million followers. There was a statistical correlation between the natural salt misinformation theme and advertisements. Many of the most frequent misinformation themes identified in this study have not been systematically debunked by organizations such as the World Health Organization and the American Heart Association. This study underscores the importance of continuous monitoring and analysis of sodium-related misinformation on social media platforms and their underlying commercial interests. Such monitoring has the potential to identify prevalent misinformation themes that may pose harm to the public and to inform public health organizations, enabling them to proactively address potential issues through debunking.

The Pitfalls of Ascribing Moral Agency to Corporations: Public Obligation and Political and Social Contexts in the Commercial Determinants of Health

Policy Points Government and civil society should be held more accountable for creating food and beverage regulatory policies rather than assigning moral agency to the food and beverage industry. Nutrition policymaking institutions should ensure civil society's ability to design regulatory policy. Government policymaking institutions should be isolated from industry interference.

Use of immunology in news and YouTube videos in the context of COVID-19: politicisation and information bubbles

Background

The COVID-19 pandemic propelled immunology into global news and social media, resulting in the potential for misinterpreting and misusing complex scientific concepts.

Objective

To study the extent to which immunology is discussed in news articles and YouTube videos in English and Italian, and if related scientific concepts are used to support specific political or ideological narratives in the context of COVID-19.

Methods

In English and Italian we searched the period 11/09/2019 to 11/09/2022 on YouTube, using the software Mozdeh, for videos mentioning COVID-19 and one of nine immunological concepts: antibody-dependent enhancement, anergy, cytokine storm, herd immunity, hygiene hypothesis, immunity debt, original antigenic sin, oxidative stress and viral interference. We repeated this using MediaCloud for news articles.Four samples of 200 articles/videos were obtained from the randomised data gathered and analysed for mentions of concepts, stance on vaccines, masks, lockdown, social distancing, and political signifiers.

Results

Vaccine-negative information was higher in videos than news (8-fold in English, 6-fold in Italian) and higher in Italian than English (4-fold in news, 3-fold in videos). We also observed the existence of information bubbles, where a negative stance towards one intervention was associated with a negative stance to other linked ideas. Some immunological concepts (immunity debt, viral interference, anergy and original antigenic sin) were associated with anti-vaccine or anti-NPI (non-pharmacological intervention) views. Videos in English mentioned politics more frequently than those in Italian and, in all media and languages, politics was more frequently mentioned in anti-guidelines and anti-vaccine media by a factor of 3 in video and of 3-5 in news.

Conclusion

There is evidence that some immunological concepts are used to provide credibility to specific narratives and ideological views. The existence of information bubbles supports the concept of the "rabbit hole" effect, where interest in unconventional views/media leads to ever more extreme algorithmic recommendations.

Investigating the impact of 'dark nudges' on drinking intentions: A between groups, randomized and online experimental study

OBJECTIVES

This study explored how 'dark nudges' (tactics used in alcohol industry-funded responsible drinking campaigns) affect drinking intentions, perceived source credibility and whether individual differences in perceptions of prototypical drinkers moderated these effects.

DESIGN

Two 2 × 2 between-groups online experimental studies.

METHODS

Study 1 (N = 164) presented three alcohol health messages per condition, comprising social norm (healthy/unhealthy ("dark nudge")) by frame (loss/gain). Study 2 (N = 229) presented one message per condition, comprising cancer causality (single cause/multiple causes (dark nudge)) by funding disclosure (disclosure/non-disclosure (dark nudge)). Outcomes were drinking intentions and perceived source credibility. Exploratory analyses considered prototype perceptions as a between-subjects moderator.

RESULTS

No significant effects of message frame, social norm, fundi or multiple cancer causality arguments on drinking intentions were found. In Study 2, in the dark nudge multiple cancer causality conditions, perceived source credibility was high when funding was undisclosed, but significantly lower when it was disclosed. Exploratory analyses suggested effects were moderated by prototype similarity. In Study 1, higher perceived similarity to a heavy drinker and lower perceived similarity to a responsible drinker were associated with higher drinking intentions in the unhealthy norm/gain frame condition, but lower drinking intentions in the other conditions.

CONCLUSIONS

Framing, social norm, funding disclosure and multiple causality manipulations as tested in this study did not exert a dark nudge effect on drinking intentions. However, the exploratory analyses suggest it could be hypothesised that the types of messages used in alcohol industry-funded responsible drinking campaigns may result in greater drinking intentions among those who identify more as heavy drinkers and less as responsible drinkers. Perceived prototype similarity may be an important moderator of the impact of alcohol health messages that warrants further research. Study 2 suggests disclosure of industry funding guides judgements of the credibility of sources of misleading messages about alcohol and cancer.

Addressing tobacco industry influence in tobacco-growing countries

Protecting policy-making from tobacco industry influence is central to effective tobacco control governance. The inclusion of industry actors as stakeholders in policy processes remains a crucial avenue to corporate influence. This influence is reinforced by the idea that the tobacco industry is a legitimate partner to government in regulatory governance. Addressing the influence of the tobacco industry demands a focus on the government institutions that formalize relationships between industry and policy-makers. Industry involvement in government institutions is particularly relevant in tobacco-growing countries, where sectors of government actively support tobacco as an economic commodity. In this paper, we discuss how controlling tobacco industry influence requires unique consideration in tobacco-growing countries. In these countries, there is a diverse array of companies that support tobacco production, including suppliers of seeds, equipment and chemicals, as well as transportation, leaf buying and processing, and manufacturing companies. The range of companies that operate in these contexts is particular and so is their engagement within political institutions. For governments wanting to support alternatives to tobacco growing (Article 17 of the Framework Convention for Tobacco Control), we illustrate how implementing Article 5.3, aimed at protecting tobacco control policies from tobacco industry interference, is fundamental in these countries. Integrating Article 5.3 with Article 17 will (i) strengthen policy coherence, ensuring that alternative livelihood policies are not undermined by tobacco industry interference; (ii) foster cross-sector collaboration addressing both tobacco industry interference and livelihood development; and (iii) enhance accountability and transparency in tobacco control efforts.

Impact on wine sales of removing the largest serving size by the glass: An A-B-A reversal trial in 21 pubs, bars, and restaurants in England

BACKGROUND

Interventions that alter aspects of the physical environments in which unhealthy behaviours occur have the potential to change behaviour at scale, i.e., across populations, and thereby decrease the risk of several diseases. One set of such interventions involves reducing serving sizes, which could reduce alcohol consumption. The effect of modifying the available range of serving sizes of wine in a real-world setting is unknown. We aimed to assess the impact on the volume of wine sold of removing the largest serving size by the glass from the options available in licensed premises.

METHODS AND FINDINGS

The study was conducted between September 2021 and May 2022 in 21 licensed premises in England that sold wine by the glass in serving sizes greater than 125 ml (i.e., 175 ml or 250 ml) and used an electronic point of sale till system. It used an A-B-A reversal design, set over 3 four-weekly periods. "A" represented the nonintervention periods during which standard serving sizes were served and "B" the intervention period when the largest serving size for a glass of wine was removed from the existing range in each establishment: 250 ml (18 premises) or 175 ml (3 premises). The primary outcome was the daily volume of wine sold, extracted from sales data. Twenty-one premises completed the study, 20 of which did so per protocol and were included in the primary analysis. After adjusting for prespecified covariates, the intervention resulted in -420·8 millilitres (ml) (95% confidence intervals (CIs) -681·4 to -160·2 p = 0·002) or -7·6% (95% CI -12·3%, -2·9%) less wine being sold per day. There was no evidence that sales of beer and cider or total daily revenues changed but the study was not powered to detect differences in these outcomes. The main study limitation is that we were unable to assess the sales of other alcoholic drinks apart from wine, beer, and cider, estimated to comprise approximately 30% of alcoholic drinks sold in participating premises.

CONCLUSIONS

Removing the largest serving size of wine by the glass from those available reduced the volume of wine sold. This promising intervention for decreasing alcohol consumption across populations merits consideration as part of alcohol licensing regulations.

TRIAL REGISTRATION

ISRCTN https://doi.org/10.1186/ISRCTN33169631; OSF https://osf.io/xkgdb.

Conflicts of Interest in the Assessment of Chemicals, Waste, and Pollution

Pollution by chemicals and waste impacts human and ecosystem health on regional, national, and global scales, resulting, together with climate change and biodiversity loss, in a triple planetary crisis. Consequently, in 2022, countries agreed to establish an intergovernmental science-policy panel (SPP) on chemicals, waste, and pollution prevention, complementary to the existing intergovernmental science-policy bodies on climate change and biodiversity. To ensure the SPP's success, it is imperative to protect it from conflicts of interest (COI). Here, we (i) define and review the implications of COI, and its relevance for the management of chemicals, waste, and pollution; (ii) summarize established tactics to manufacture doubt in favor of vested interests, i.e., to counter scientific evidence and/or to promote misleading narratives favorable to financial interests; and (iii) illustrate these with selected examples. This analysis leads to a review of arguments for and against chemical industry representation in the SPP's work. We further (iv) rebut an assertion voiced by some that the chemical industry should be directly involved in the panel's work because it possesses data on chemicals essential for the panel's activities. Finally, (v) we present steps that should be taken to prevent the detrimental impacts of COI in the work of the SPP. In particular, we propose to include an independent auditor's role in the SPP to ensure that participation and processes follow clear COI rules. Among others, the auditor should evaluate the content of the assessments produced to ensure unbiased representation of information that underpins the SPP's activities.

Under the influence: system-level effects of alcohol industry-funded health information organizations

There is now an established body of evidence that the alcohol industry seeks to obstruct public health policies that could affect the availability, affordability or marketing of alcohol. In parallel, the alcohol industry is active in funding corporate social responsibility initiatives, with a particular focus on 'responsible drinking' campaigns, often facilitated by national-level charities established and/or funded by the alcohol industry and associated organizations. While evidence continues to grow regarding biases in the content produced by such health information organizations, they remain active in partnerships with government health departments on national health promotion campaigns and provide a range of health-related information to the public, community organizations and schools. To understand the implications of such access for policymakers, researchers and the public, there is a need to consider the wider, system-level influences of such organizations and their place in wider alcohol industry strategies. In this article, we describe evolving evidence of the direct and indirect strategic effects of such organizations and demonstrate how they serve key roles in the alcohol industry through their existence, content, partnerships and public profiles. We end by considering the implications for how we conceptualize charities established or funded (entirely or partly) by harmful commodity industries, and to what extent current conflicts of interest guidelines are sufficiently effective.

Gambling consumption and harm: a systematic review of the evidence

The total consumption model (TCM) postulates a close link between total consumption and levels of harm within the population, which has important implications for prevention. This review aimed to explore evidence relating to the application of the TCM and theoretical elements associated with it (i.e. the distribution of harms; the concentration of consumption) to gambling by reviewing evidence pertaining to the distribution of harms across the population; the concentration of gambling consumption; and evidence of the validity of the TCM in gambling. Systematic literature searches were performed using MEDLINE, PsycINFO, and Web of Science databases, restricted to publications between January 1, 2010, and March 29, 2023. The search identified seven studies examining risk curves for gambling harm, of which only two employed continuous consumption measures. This nascent literature suggests mixed evidence for the relationship between gambling consumption (e.g. losses, frequency, expenditure, and expenditure as a percentage of income) and risk of harm. Five publications found that the concentration of gambling consumption was high among those experiencing gambling harms, with some evidence that spending is more concentrated for certain games (e.g. online casinos) than for others (e.g. lotteries). Finally, four studies assessed the TCM, suggesting close association between gambling consumption and problem gambling, lending empirical support to the validity of the TCM. However, robust evidence is nascent and further research is required to assess these relationships.

Game-based inoculation versus graphic-based inoculation to combat misinformation: a randomized controlled trial

Misinformation affects various aspects of people's lives, such as politics, entertainment, and social interactions. However, effective intervention measures to combat misinformation are lacking. The inoculation theory has become a prevalent measure of misinformation. This study employed inoculation theory and developed an interactive game to help the public counter misinformation. In this game, players take on the role of the misinformation spreader, intending to add more followers to their virtual accounts using different strategies. A total of 180 Chinese participants were randomly assigned to game-based inoculation, graphic-based inoculation, and control groups. The results indicated that both types of inoculation interventions significantly decreased the perceived credibility and sharing intention of misinformation. Game-based inoculation was more effective than graphic-based inoculation in terms of misinformation perceived credibility, and the intervention effects were stable after 2 weeks. The graphic-based inoculation contained the sleeper effect, which interventions required a period of time to take effect. Neither inoculation produced countereffects on perceived credibility and nor sharing intention of accurate information.

Impact on sales of adding a smaller serving size of beer and cider in licensed premises: an A-B-A reversal design

BACKGROUND

Smaller serving sizes of alcoholic drinks could reduce alcohol consumption across populations thereby lowering the risk of many diseases. The effect of modifying the available range of serving sizes of beer and cider in a real-world setting has yet to be studied. The current study assessed the impact on beer and cider sales of adding a serving size of draught beer and cider (2/3 pint) that was between the current smallest (1/2 pint) and largest (1 pint) standard serving sizes.

METHODS

Twenty-two licensed premises in England consented to taking part in the study. The study used an ABA reversal design, set over three 4-weekly periods, with A representing the non-intervention periods, during which standard serving sizes were served and B the intervention period when a 2/3 pint serving size of draught beer and cider was added to the existing range, along with smaller 1/2 pint and larger 1 pint serving sizes. The primary outcome was the daily volume of beer and cider sold, extracted from sales data.

RESULTS

Fourteen premises started the study, of which thirteen completed it. Twelve of those did so per protocol and were included in the primary analysis. After adjusting for pre-specified covariates, the intervention did not have a significant effect on the volume of beer and cider sold per day (3.14 ml; 95%CIs -2.29 to 8.58; p = 0.257).

CONCLUSIONS

In licensed premises, there was no evidence that adding a smaller serving size for draught beer and cider (2/3 pint) when the smallest (1/2 pint) and largest (1 pint) sizes were still available, affected the volume of beer and cider sold. Studies are warranted to assess the impact of removing the largest serving size.

TRIAL REGISTRATION

ISRCTN: https://doi.org/10.1186/ISRCTN33169631 (08/09/2021), OSF: https://osf.io/xkgdb/ (08/09/2021).

Crises information dissemination through social media in the UK and Saudi Arabia: A linguistic perspective

This study investigates health-promoting messages in British and Saudi officials' social-media discourse during the Coronavirus Disease 2019 (COVID-19) Pandemic. Taking discourse as a constructivist conception, we examined the crisis-response strategies employed by these officials on social media, and the role of such strategies in promoting healthy behaviors and compliance with health regulations. The study presents a corpus-assisted discourse analysis of the tweets of a Saudi health official and a British health official that focuses on keyness, speech acts, and metaphor. We found that both officials utilized clear communication and persuasive rhetorical tactics to convey the procedures suggested by the World Health Organization. However, there were some differences in how the two officials used speech acts and metaphors to achieve their goals. The British official used empathy as the primary communication strategy, while the Saudi official emphasized health literacy. The British official also used conflict-based metaphors such as war and gaming, whereas the Saudi official used metaphors that reflected life as a journey interrupted by the pandemic. Despite these differences, both officials utilized directive speech acts to tell audiences the procedures they should follow to achieve the desired conclusion of healing patients and ending the pandemic. In addition, rhetorical questions and assertions were used to direct people to perform certain behaviors favored. Interestingly, the discourse used by both officials contained characteristics of both health communication and political discourse. War metaphors, which were utilized by the British Health official, are a common feature in political discourse as well as in health-care discourse. Overall, this study highlights the importance of effective communication strategies in promoting healthy behaviors and compliance with health regulations during a pandemic. By analyzing the discourse of health officials on social media, we can gain insights into the strategies employed to manage a crisis and effectively communicate with the public.

A qualitative framing analysis of how firearm manufacturers and related bodies communicate to the public on gun-related harms and solutions

There is a growing understanding that the producers and sellers of harmful products directly and indirectly affect population health and policy, including through seeking to influence public understanding about the nature of harms and their solutions. However, the firearm industry and related organisations have not to date been the subject of this type of enquiry. This study sought to address this evidential gap through examining the ways in which the firearm industry and industry-associated organisations frame firearms, firearm-related harms and possible solutions to gun violence. This was a thematic qualitative documentary analysis of materials from 7 of the largest firearm manufacturers and associated organisations. Two authors independently extracted textual material from web articles, press releases, annual reports and shareholder communications between 1st April 2019 to 1st April 2020 (302 documents). A hybrid approach combining both deductive and inductive coding was adopted, guided by the literature on the commercial determinants of health and using NVivo version 12. The firearm industry and firearm industry-funded organisations use framings about the safety and role of guns, evidence on associated harms and solutions that align with the industry's business interests, consistent with evidence on other harmful product manufacturers. This study identified framing strategies employed by the firearm industry and related organisations. These included attempts to undermine evidence, linking regulation to a dystopian future, minimising some of the most common harms, placing the responsibility for harms on individuals, and attempting to foster a heightened sense of risk to personal safety.

Tobacco industry messaging around harm: Narrative framing in PMI and BAT press releases and annual reports 2011 to 2021

Influencing public perception is a key way in which all transnational corporations (TNCs) maintain market dominance and political power. Transnational tobacco companies (TTCs) have a long history of leveraging narratives to serve commercial ambitions. The global reach of these companies' narratives has been highlighted as a challenge in combatting public health problems caused by tobacco. The corporate power of TTCs is carefully curated, and their narratives play an important role in the setting of governance dynamics at local, national and transnational levels. This qualitative work explores and compares the language used by British American Tobacco (BAT) and Philip Morris International (PMI) around harm, harm reduction and terms used to refer to newer nicotine and tobacco products, including electronic cigarettes and heated tobacco products. We systematically examine framings used by these two TTCs through company reports published between 2011 and 2021. Qualitative coding was carried out by four coders, according to a protocol developed specifically for this work. We firstly identified the presence of pre-selected keywords and then assigned chunks of text containing those key words to one or more associated frames drawn from Boydstun's policy frames codebook (2013). Qualitative coding identified the most common frames from Boydstun's codebook and thematic analysis highlighted three overarching themes. The most common frames assigned were "capacity and resources", "health and safety" and "economic" frames. The overarching themes were individualization, normalization, and regulation. These themes capture how both BAT and PMI use particular framings to downplay the role of TTCs in the perpetuation of population- and individual-level harms related to tobacco use. They seek to normalize their role in public discussions of health policy, to cast themselves as instrumental in the redress of tobacco-related inequalities and shift responsibility for the continuation of tobacco-product use onto individual consumers. These tactics are problematic for the effective and impartial development and implementation of local, national and international tobacco control agendas.

Impact of Sizes of Servings, Glasses and Bottles on Alcohol Consumption: A Narrative Review

This review summarises the evidence on the impact of serving and container size on how much people drink, interventions that have the potential to reduce alcohol consumption across populations, thereby improving health. A rapid search identified 10 published reports of 15 studies and 1 review. Four studies focused on serving size, eight studies and the review on glass size, two studies on bottle size and one on both glass and bottle size. Twelve studies and the review focused on wine, one study on beer and two on both. All were conducted in England, by just two research groups. Removing the largest serving size of wine decreased wine sales by 7.6% (95% CI −12.3%, −2.9%) in a study in 21 licenced premises, reflecting findings from two prior studies in semi-naturalistic settings. Adding a serving size for beer that was a size smaller than the largest was assessed in one study in 13 licenced premises, with no evident effect. Reducing the size of wine glasses in restaurants decreased wine sales by 7.3% (95% CI −13.5%, −1.5%) in a mega-analysis of eight datasets from studies in five licensed premises. Using smaller wine glasses at home may also reduce consumption, but the evidence from just one study is less certain. No studies have assessed the impact of glass size for drinking beer. The effect of bottles smaller than the standard 750 mL on wine consumed at home was assessed in two studies: 500 mL bottles reduced consumption by 4.5% (95% CI −7.9%, −1.0%) in one study, but in another, using 375 mL bottles there was no evident effect. No studies assessed the impact of bottle or other container size for drinking beer. Reducing the size of servings, glasses and bottles could reduce wine consumption across populations. The impact of similar interventions for reducing consumption of other alcoholic drinks awaits evaluation. Further studies are also warranted to assess the generalisability of existing evidence.

Using Regulatory Stances to See All the Commercial Determinants of Health

Policy Points The commercial determinants of health (CDoH) concept, which currently focuses on markets that harm health, should be expanded to refer to the interface between commerce and health, which can sometimes have positive public health consequences. The regulatory stances framework helps us classify public health preferences for regulating specific markets related to CDoH, based on the intended effects of regulations on market size. The regulatory stances a jurisdiction can adopt can be classified as ranging from prohibitionist through contractionist, permissive, and expansionist, to universalist. The regulatory stances framework increases the usefulness of the CDoH concept by expanding the conversation beyond negative determinants of health and providing a fuller view of the tools at the disposal of society to alter markets and improve health.

CONTEXT

The effects of commerce on the public health are omnipresent. The commercial determinants of health (CDoH) represent a burgeoning area of scholarly debate and activist policymaking to redress markets that adversely affect public health. The CDoH debate is a logical extension of the tobacco control movement, but, to its detriment, the CDoH conversation remains primarily focused policies and proposals that are analogous to historical tobacco control strategies.

METHODS

This paper argues that for the CDoH to develop further and broaden its appeal, it should expand to cover markets with conditional and positive impacts on health. To explain and order this conversation, a comparative framework for regulatory policy is introduced: the regulatory stances. The regulatory stances classify a regulatory policy based on the intended effect of policy on the size of a market in the future relative to the present.

FINDINGS

Some markets that interface between commerce and health do not inherently harm health. Regulatory policy toward these markets should be different in intent than regulatory policy for markets with negative health effects.

CONCLUSIONS

By using the regulatory stances framework to encompass markets that have positive or conditional effects on health as well as those that have adverse health effects, the CDoH conversation can shift away from the exclusive focus on strategies to shrink markets with adverse health impacts to consider a wider array of policy options.