An honest look at the BBC report on the “five Ps”
In late July, the BBC published a long report on childhood obesity in Campania, Italy [1]. It describes a real situation. Over 40% of children aged 8 to 9 in the region are overweight. The clinical cases are documented by regional reference centres, and the WHO confirms the trend with solid data. The article opens with a 17-year-old waiting for bariatric surgery, and follows other young patients treated at the Federico II hospital, through interviews with specialists who have years of clinical experience.
The problem starts with how the story explains this. It comes down to which scientific tools the piece uses, which ones it leaves out, and who benefits from the solution it proposes.
The “five Ps” do not appear in any guideline
The report sums up the modern Italian diet in one acronym: Pizza, Pasta, Potatoes, Protein, Pane (bread). Five words, easy to remember, hard to justify on nutritional grounds. No national guideline, Italian or international, names specific foods or food categories as a direct cause of weight gain. Italian guidelines from CREA, and the LARN reference values from SINU, talk about overall eating patterns, frequency of consumption, portion size, and food quality within each category. They do not put specific foods on trial. Bread, pasta, and potatoes appear as sources of complex carbohydrates in nearly every dietary guideline in the world, Italian or otherwise. The real problem, when it exists, lies in industrial processing and calorie density. The fried pizza stuffed with fries and sausage, mentioned in the same article, is a good example of this. The pasta or bread on the table is not the problem. Reducing the issue to a catchy acronym makes the message spread easily, but it shifts the blame onto everyday, identity-linked foods instead of onto actual eating behaviour and consumption patterns, which is what nutrition science actually measures.
An expert who is also an interested party
This is the strongest point in the whole story, and it deserves a full explanation. Dr. Valter Longo, director of the Longevity Institute at the University of Southern California, appears in the piece in two roles. He is the expert who diagnoses the problem: the loss of the traditional Mediterranean diet, followed by only 10% of Italians according to his own estimate, summed up in the “five Ps”. In the same article, he is also the person behind, through his own foundation, the nutrition workshops reaching over 17,000 students in 25 schools in Campania, and a trial on 300 overweight teenagers testing a fast-mimicking diet he has studied for thirty years: five days every three months, 1,100 calories on day one, 770 calories on the four days that follow, with the stated goal of a “metabolic reset”. The report never states clearly that its main scientific source is also the economic and scientific driver of the solution it presents. To its credit, the article does include a critical voice: pediatrician Roberto Berni Canani, from Federico II, says the evidence on the fast-mimicking diet in children is still too limited to support its use in Italian clinical guidelines. He also names a real risk, eating disorders, anorexia, and body dysmorphia in teenagers linked to calorie restriction. But this voice comes near the end of the piece, after readers have already absorbed the framing built around Longo as the leading authority.
A child, a number, no clinical tools
In the story, a ten-year-old is described through a single figure: weight in kilograms. A teacher voices concern based on that number alone, with no mention of height, growth curve, or any structured clinical assessment. Weight alone says nothing about a person’s health, least of all a child who is still growing. A proper assessment needs, at minimum, BMI calculated for age and sex, a growth percentile, and ideally a body composition measurement. This is not a minor technical detail. It is the core of the problem.
An international consensus statement published in Nature Medicine in 2020, endorsed by over 100 scientific organisations, defines weight stigma as harmful to physical and mental health, and compares its prevalence to racial discrimination [2]. A review in BMC Medicine shows that weight stigma triggers physiological mechanisms, including higher cortisol and reduced control over eating, that make the original problem worse, not better: people who face weight stigma tend to eat more, not less, and to avoid physical activity rather than take it up [3]. A systematic review with meta-analysis in children and adolescents confirms the link between weight stigma and worse mental health outcomes, regardless of a person’s actual weight [4]. Publicly judging a child based on one number, in a story with global reach, has no clinical basis. It is itself a vehicle for stigma, regardless of the intent behind it.
Forbidden food becomes more desirable
There is a psychological mechanism the report never mentions, and it matters here because the story is about “forbidden” foods. Food restriction, especially when framed as a moral rule, increases the desire for the forbidden food and can lead to episodes of overeating later on. This is known as the forbidden fruit effect, first described in Polivy and Herman’s cognitive restraint theory in the 1980s [5], and confirmed by later studies in both adults and children. Building a narrative that demonises pizza, pasta, and bread as categories, in a piece that also reaches young audiences, risks reinforcing the exact compulsive craving it claims to fight. Berni Canani raises a similar risk elsewhere in the same article, when he talks about restrictive diets. A more coherent piece would have connected these two points, instead of treating them as separate.
Weight-normative or weight-inclusive: the evidence already answered this
The report works entirely within what the scientific literature calls a weight-normative approach: weight loss as the main goal, the number on the scale as the marker of success, personal responsibility as the explanation. This approach is common, but it is not what the most recent evidence supports. A review in Nutrition Journal assessed the evidence behind weight-loss-centred protocols compared to alternative approaches, and found that the former do not lead to better long-term health outcomes and come with high rates of weight regain [6]. A comparison in the Journal of Obesity between the weight-normative approach and the weight-inclusive approach, which centres on wellbeing and healthy behaviours regardless of weight, found equal or better metabolic, psychological, and behavioural outcomes for the second [7]. A review in Social Issues and Policy Review reaches the same conclusion from a public health policy angle, and recommends a shift in institutional guidelines [8].
Ignoring this evidence has a real cost. A longitudinal study in Psychological Science found that weight discrimination is linked to a higher risk of death, regardless of a person’s actual BMI [9]. A systematic review in Obesity Reviews shows that internalised weight stigma, meaning turning outside judgment inward, including judgment absorbed from media coverage, independently predicts worse outcomes [10]. This connects back to the restriction mechanism described earlier: a study in Appetite linked internalised weight bias directly to a reduced ability to eat intuitively, meaning a reduced ability to recognise and respond to internal hunger and fullness cues [11]. This is exactly the mechanism a piece of journalism on childhood obesity should understand, before building a story around judging a child’s body.
On concrete clinical outcomes, not just theory, a systematic review in the Journal of Nutrition Education and Behavior looked at 18 studies on non-diet approaches. It found statistically significant improvements in eating disorders, self-esteem, and depression symptoms, with no significant weight gain and no worsening of blood pressure, blood sugar, or cholesterol. Two of the studies even showed significant improvements in biochemical markers [12]. A study run in health and social service centres in Quebec, using a Health At Every Size intervention, confirmed improvements in psychological wellbeing and in participants’ relationship with food [13]. The useful takeaway for a clinical reader is this: an approach that does not treat weight as the main goal does not produce worse metabolic outcomes, and it produces better psychological and behavioural ones.
How we choose to talk about it changes the picture
In Campania, and more broadly in other regions of Southern Italy and in other countries with similar figures, what is really missing is the social, cultural, and service infrastructure to support food education: that is the underlying problem. But a piece published by one of the world’s most respected news organisations should have drawn a clearer line between clinical fact and dramatic storytelling, between an independent expert and an interested party, between a genuine risk factor and a cultural stereotype. It does not fully do this, and the weak points are not minor. They concern exactly the elements a reader, medical professional or not, would use to form an informed opinion. Italy recently recognised obesity by law as a chronic, multifactorial disease, not a personal failing. Telling this story through five letters and a child judged by a single number is a step backward from what science, and Italian law itself, have already established. It shows, once again, that scientific communication is not a matter of style. It is part of the clinical substance.
References
- BBC News. Pizza, pasta, potatoes, protein — how Italian children became so overweight. BBC News. 2026 Jul 26.
- Rubino F, Puhl RM, Cummings DE, Eckel RH, Ryan DH, Mechanick JI, et al. Joint international consensus statement for ending stigma of obesity. Nat Med. 2020;26(4):485-97.
- Tomiyama AJ, Carr D, Granberg EM, Major B, Robinson E, Sutin AR, Brewis A. How and why weight stigma drives the obesity ‘epidemic’ and harms health. BMC Med. 2018;16(1):123.
- Warnick JL, Darling KE, West CE, Jones L, Jelalian E. Weight stigma and mental health in youth: a systematic review and meta-analysis. J Pediatr Psychol. 2022;47(3):237-55.
- Polivy J, Herman CP. Dieting and binging: a causal analysis. Am Psychol. 1985;40(2):193-201.
- Bacon L, Aphramor L. Weight science: evaluating the evidence for a paradigm shift. Nutr J. 2011;10(1):9.
- Tylka TL, Annunziato RA, Burgard D, Daníelsdóttir S, Shuman E, Davis C, Calogero RM. The weight-inclusive versus weight-normative approach to health: evaluating the evidence for prioritizing well-being over weight loss. J Obes. 2014;2014:983495.
- Hunger JM, Smith JP, Tomiyama AJ. An evidence-based rationale for adopting weight-inclusive health policy. Soc Issues Policy Rev. 2020;14(1):73-107.
- Sutin AR, Stephan Y, Terracciano A. Weight discrimination and risk of mortality. Psychol Sci. 2015;26(11):1803-11.
- Pearl RL, Puhl RM. Weight bias internalization and health: a systematic review. Obes Rev. 2018;19(8):1141-63.
- Webb JB, Hardin AS. An integrative affect regulation process model of internalized weight bias and intuitive eating in college women. Appetite. 2016;102:60-9.
- Clifford D, Ozier A, Bundros J, Moore J, Kreiser A, Morris MN. Impact of non-diet approaches on attitudes, behaviors, and health outcomes: a systematic review. J Nutr Educ Behav. 2015;47(2):143-55.
- Bégin C, Carbonneau E, Gagnon-Girouard MP, Mongeau L, Paquette MC, Turcotte M, Provencher V. Eating-related and psychological outcomes of health at every size intervention in health and social services centers across the Province of Quebec. Am J Health Promot. 2019;33(2):248-58.
