The relationship between food, public health, and social media has reached a critical point. The rise of influencers who spread inaccurate information about nutrition has transformed the digital environment into a space where charisma trumps scientific evidence and where dietary decisions are guided by emotional narratives.

The report Nutrition Misinformation in the Digital Age The study identifies how this phenomenon has intensified, describing who is responsible for spreading false recommendations, what strategies they use, and why this content is so influential. By analyzing more than one million Instagram posts, the research reveals a detailed portrait of the contemporary ecosystem of food misinformation.

The impact of misinformation on public health.

Malnutrition has become the main preventable factor associated with the growth of chronic non-communicable diseases. Despite this, a large part of the population still does not follow basic healthy eating guidelines. In parallel, there is increasing exposure to viral content that advocates extreme dietary practices, promotes fear of widely studied foods, and rejects scientific consensus.

These trends don't appear in isolation. Influencers often present their diets as complete identities, combining aesthetics, spirituality, political beliefs, and supposed "hidden truths" about health. The result is a complex web of appealing messages, capable of obscuring reliable guidance.

Who are the "super-spreaders" of misinformation?

The report's analysis identifies fifty-three profiles responsible for a large portion of the misleading content. Although they operate in different ways, they all share one characteristic: an enormous capacity for engagement and influence.

✴️ The Doc → The Doctor

This refers to an influencer who uses a professional title, real or merely similar, to convey authority and credibility, even when lacking proper training in nutrition. Many present alarmist narratives that reinforce distrust in scientific institutions.

✴️ The Rebel → The Rebel

People who reject conventional science and advocate conspiratorial views about the food industry, public policy, and nutritional recommendations.

✴️ The Hustler → The Salesman

Content creators with an aspirational aesthetic, focused on turning wellness into a product. They use stories of overcoming challenges, "miracle" recipes, and promises of transformation, always accompanied by sales links.

The study also reveals that only a minority of these influencers have adequate training. Even so, almost all of them profit directly. Strategies include selling supplements, courses, consultations, events, and partnerships with brands.

The messages that spread the most.

Among the most frequent themes, three stand out:

① Carnivorous and meat-centered diets: They account for almost a third of the content analyzed. Many publications portray vegetables as dangerous and meat as a healing food, in direct opposition to global health consensus.

2. General health content with inaccurate statements: They include simple promises for complex problems, narratives that minimize risks, and catchy phrases that sound scientific without actually being so.

③ Ketogenic diets and low-carbohydrate variations: Although they have specific clinical applications, they are promoted as universal solutions, often with important omissions regarding long-term metabolic risks.

Another revealing point is that more than ninety percent of these profiles spread multiple types of misinformation simultaneously, connecting food discourse with politics, masculinity, spirituality, and “ancestral” practices.

The three most common emotional strategies

The report identifies three main forms of persuasion used by "super-spreaders":

🔴 Fear

Messages that reinforce insecurity and urgency. Common foods are described as toxic or dangerous, especially vegetable oils, grains, and processed products.

Related sources: 

https://researchbriefings.files.parliament.uk/documents/SN03336/SN03336.pdf

https://bmjopen.bmj.com/content/10/8/e037554.abstract

🔴 Euphoria

Publications that promise vitality, mental clarity, and a radiant appearance as a result of restrictive diets.

Related sources:

https://www.health.harvard.edu/staying-healthy/should-you-try-the-keto-diet

https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2021.702802/full

🔴 Subtlety

The technique of "sprinkling" misleading information into workout routines, homemade recipes, vlogs, and personal stories. This makes the misinformation more palatable and less noticeable.

When emotion trumps evidence.

Although each group uses different strategies, they all rely on the same mechanism: connecting emotionally with the audience.

The study shows that the ability to generate a sense of belonging, inspiration, or warning makes followers trust influencers more than qualified professionals. This phenomenon occurs even when essential information is omitted or distorted.

Global nutritional guidelines, on the other hand, are based on many years of independent research. Organizations such as World Health Organization e EAT-Lancet Commission They consistently argue that dietary patterns rich in vegetables and low in red meat consumption promote longevity and reduce the risk of disease.

Go to: https://www.who.int/health-topics/healthy-diet

Go to: https://eatforum.org/eat-lancet-commission/the-planetary-health-diet-and-you/

Call to action: how to reverse this scenario

The research proposes concrete paths forward. The most relevant include:

✅ Nutritional education from an early age: To create spaces for teaching practical cooking and critical analysis of digital information.

✅ Support for qualified professionals on social media: Research indicates that audiences engage more with messages that combine clarity, emotion, and relatability. Trained professionals can occupy this space with greater impact.

✅ Improving digital literacy: To teach how to identify hidden commercial intent, fabricated authority speeches, and common persuasive techniques.

✅ Rigorous monitoring of health claims: Regulation needs to keep pace with the reality of networks, especially when professional titles are used as a marketing tool.

Why does it matter

The scenario revealed by the study is clear: nutritional misinformation is not just harmless noise. It shapes behaviors, leads to harmful food choices, and undermines public health initiatives.

When a viral post reaches millions of people, it can have a greater influence than expert guidelines. Therefore, understanding this ecosystem is essential for building healthier and more trustworthy conversations about food.

The analysis presented in the report Nutrition Misinformation in the Digital Age This makes it clear that nutritional misinformation has become one of the most pressing challenges in contemporary health. The reach of "super-spreaders" is immense, and their influence transcends borders, setting the agenda for conversations, shaping perceptions, and impacting everyday food choices.

The problem stems not only from a lack of knowledge, but also from the ability of these influencers to connect emotion, identity, and promises of transformation with messages that contradict decades of scientific evidence. The combination of charismatic language, polarized narratives, and financial incentives creates a cycle where misinformation spreads with greater speed and appeal than traditional public health communications.

Reversing this situation requires joint action: Strengthening the presence of qualified professionals on social media, expanding digital literacy, promoting critical thinking from childhood, and improving policies that curb the misuse of professional titles. More than combating myths, it's about rebuilding trust and providing the population with tools to recognize misleading discourse and make choices that truly promote health.

Source:

Millbank, A., Millbank, L., Malerich, M., Trautmann, L., & Thorton, G. (2025), Nutrition misinformation in the digital age (2024–2025). Rooted Research Collective.
https://rootedresearch.co/publications/nutrition-misinformation-digital-age/