
¿Funcionará la estrategia contra la obesidad del gobierno?
Revisado por pares por Dr Sarah JarvisÚltima actualización por Andrea DowneyLast updated 7 Sept 2020
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El gobierno ha lanzado una nueva estrategia contra la obesidad, instando a las personas a perder peso para protegerse del coronavirus. Pero, ¿realmente ayudará la campaña a que la nación esté más saludable?
En este artículo:
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Does the campaign go far enough to address the underlying causes of obesity? Dr Sally Norton, an NHS consultant and weight loss expert, and Daniel Herman, nutrition coach and founder of sports nutrition brand Bio-Synergy, explain more.
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What's the plan?
In July, the government announced its new obesity strategy including:
A ban on TV adverts for food high in fat, sugar and salt before 9 pm.
The end of deals such as 'buy one get one free'.
Calories being displayed on restaurant menus.
Almost two thirds of adults in England are con sobrepeso u obesidad, costing the NHS around £6 billion per year. New evidence suggests those carrying excess weight are at higher risk of COVID-19.
Although only 2.9% of UK adults are in the 'morbidly obese' category (with a body mass index over 40), nearly 8% of critically ill patients with COVID-19 in intensive care units have been in this category, according to government figures.
This has prompted Public Health England to launch a campaign to encourage people to "embrace a healthier lifestyle and to bajar de peso if they need to".
NHS weight loss services including self-care apps and online tools will be expanded so more people can get the support they need. From next year doctors will be given incentives to help patients lose weight.
Does it go far enough?
Volver al contenidoBut is that enough to help the nation get healthier? According to Dr Norton, the campaign doesn't go far enough and "there is a lot more that can, and should, be done if we really want to see our obesity rates go down".
"Laying the responsibility for weight control on an individual, even with a coach's support, is unfair and often unsuccessful. There needs to be even greater emphasis on the unhealthy food and lifestyle environment that surrounds us," she explains.
"The government has promised to make it easier to make healthy choices, by reviewing the way that nutritional labelling of foods is provided, and ensuring that calorie information is displayed in restaurants, cafés and take-aways.
"Will that really stop people buying the super-size buckets of popcorn in the cinema or re-filling their huge fizzy drinks in the local takeaway? I don't think it will."
There's no doubt that average portion sizes have increased in the last 25 years - by as much as 45% for some single-portion ready meals, 50% for a family bag of crisps, 80% for peanuts and up to 30% for some baked goods.
"We should be legislating against these super-size servings and ensuring that the crazy portion distortion is tackled at source."
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Less dictate, more educate
Volver al contenidoBoth Dr Norton and Herman agree that more needs to be done to educate people about healthy eating and nutrition.
We know being overweight causes myriad other conditions, from presión arterial alta y enfermedades del corazón a diabetes, but the problem is people often don't know how to make healthier choices.
"I think that taking any steps that result in people pursuing a healthy lifestyle is a great step. It is interesting however that it has taken COVID-19 to make this happen and that the focus is on fear, rather than the positive outcomes of a healthier lifestyle," Herman says.
"There is need for a joined-up approach which includes a massive piece around education about nutrition, how to prepare healthy food and understanding that people of different ages, backgrounds and fitness levels require different advice.
"I think that trying to get people to give up the foods they love and to have less tiempo frente a la pantalla is a challenge that will take time and will need to be tailored to different groups."
Dr Norton says the government needs to focus on making healthier choices easier, such as making active commuting like cycling and walking safer.
"Make healthy eating, shopping, cooking and healthier lifestyle skills as important as maths and English on the curriculum," she adds.
"Processed, poor-quality food is cheaper and easier to purchase than good-quality real food and that means the poorer in society are most likely to suffer from obesity. It's a real health inequality issue.
"All-you-can-eat restaurants, cheap carveries, and takeaways selling huge portions of poor-quality food are seen as good value. This perception needs to be changed so that we all value good-quality, well-produced or responsibly sourced food. We should be educated to value quality over quantity."
The underlying causes
Volver al contenidoAs Dr Norton says, depravation plays a huge role in obesity levels. But, so too, does the workplace and time-poor lifestyles.
"Ultimately it is the shift in our lifestyles, which are more sedentary, the availability of food and low prices. All of this has contributed to us over-eating and moving less," Herman explains.
"So, in simple terms, our intake of calories far exceeds the amount that we require."
Dr Norton called on the government to address the importance of "workplace wellness" including for "shift workers who can't get fresh food (including some hospitals), vending machines selling junk, too much sedentary time in the office".
"I've talked, years ago, about the fact that even in our hospitals when I was counselling people about weight loss surgery, there were two high-street coffee outlets in the hospital foyer selling high-calorie, creamy coffees and overly large cakes accounting for more than a third of a person's daily calorie intake," she adds.
"And vending machines full of crisps, chocolate and fizzy drinks. If this is the message we give in hospitals, how can we ensure people are well educated about healthy eating?"
She adds that more needs to be done to shift the blame for obesity from individuals and on to the food industry.
"There are plenty of examples where the nutritional and calorie values are given clearly. But the fact that this drink, chocolate bar or whatever, is supposed to provide three portions, not one, is in tiny writing," she says.
"The calorie count per portion and the number of portions in a product should both be clear. This needs to be done properly to avoid wasting money and just ticking a few boxes to shift the blame for obesity firmly on to the individual whilst failing to stand up to the huge processed-food industry."
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Results based?
Volver al contenidoDr Norton explains there are already numerous weight loss tools employed by the government and NHS but there's a lack of robust evidence as to whether they work.
"It [the government] already provides a free 12-week weight loss plan app, encouraging people to develop healthier eating habits, get more active and lose weight," she says.
"I want to know what the success rate of these programmes is in helping people lose weight and keep it off. If it's anything like most weight loss programmes, over 85% of people regain all the weight they've lost and more by a year.
"Before they spend millions of pounds training coaches and providing these services for the majority of the population who need input, let's see some robust evidence that it's money well spent."
Interestingly, a 2011 study comparing UK weight loss services found that commercial services such as Weight Watchers (now WW - Weight Watchers Reimagined, available through Acceso del Paciente) were more effective than NHS primary care-based services led by specially trained staff.
Red flags
Volver al contenidoAs our experts have stated, a campaign that aims to improve the overall health of the nation is a good thing, even if the government may have missed the mark in some areas.
But there's a couple of aims in the campaign that have caused serious concern - access to weight loss tools without appropriate safeguards and including calorie contents on restaurant menus.
For many living with or recovering from trastornos alimenticios this can be a harmful trigger.
Andrew Radford, chief executive of eating disorder charity Beat, says, "We recognise the importance of addressing obesity, but the risks of stigmatising and poorly-considered campaigns on those affected by eating disorders must be taken into account.
"In particular, we are concerned that the campaign will encourage people with eating disorders to use the promoted weight loss app, which fails to prevent under-18s or people with low weight from using it, despite it not being suitable for them.
"It is also worrying to see a renewed emphasis on measures such as calorie labelling, as evidence clearly shows that these risk exacerbating eating disorders of all kinds."
So, will the government's obesity campaign work? Based on what our experts have said, a campaign that draws attention to the dangers of obesity is a good thing. But until the focus shifts to education about healthier lifestyle choices we may not see the results the government wants.
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Preguntas frecuentes
What specifically is included in the government's new obesity strategy?
The new obesity strategy includes a ban on TV adverts for food high in fat, sugar, and salt before 9 pm, ending deals like 'buy one get one free', and displaying calorie information on restaurant menus. There will also be an expansion of NHS weight loss services, including self-care apps and online tools, and doctors will receive incentives from next year to help patients lose weight.
Why has COVID-19 impacted the focus on obesity?
New evidence suggests that individuals carrying excess weight are at a higher risk of severe COVID-19. Government figures indicate that nearly 8% of critically ill COVID-19 patients in intensive care units are in the 'morbidly obese' category (BMI over 40), despite this group making up only 2.9% of UK adults. This has prompted Public Health England to launch a campaign encouraging a healthier lifestyle and weight loss.
How much have portion sizes increased over time, and why is this a problem?
Average portion sizes have increased significantly over the last 25 years. For example, some single-portion ready meals have increased by as much as 45%, family bags of crisps by 50%, peanuts by 80%, and some baked goods by up to 30%. This 'portion distortion' is a problem because it encourages overconsumption, contributing to obesity.
Why is it difficult for people to make healthier food choices?
Many people struggle to make healthier choices because they lack education about nutrition and how to prepare healthy food. Additionally, processed and poor-quality food is often cheaper and easier to purchase than good-quality real food, which creates a health inequality issue, particularly for those with lower incomes. The perception that 'all-you-can-eat' options and large portions of cheap food are good value also contributes.
How do workplaces contribute to obesity, and what could be done?
Workplaces contribute to obesity through factors like sedentary time in offices, vending machines selling unhealthy snacks, and a lack of fresh food options, especially for shift workers (even in some hospitals). To address this, there needs to be a focus on 'workplace wellness', ensuring healthier food options, and creating environments that encourage less sedentary behaviour.
Are the current government and NHS weight loss tools effective?
The government and NHS already provide weight loss tools, such as a free 12-week weight loss plan app. However, there is a lack of robust evidence about their success rates in helping people lose weight and, more importantly, keep it off. Historically, many weight loss programmes see over 85% of people regain all the weight they lost, and often more, within a year.
What concerns have been raised about the campaign's impact on people with eating disorders?
Concerns have been raised that some aspects of the campaign, such as access to weight loss tools without appropriate safeguards and renewed emphasis on calorie labelling on menus, could be harmful triggers for individuals living with or recovering from eating disorders. The promoted weight loss app, for example, doesn't prevent under-18s or people with low weight from using it, despite not being suitable for them, and evidence suggests calorie labelling can exacerbate eating disorders.
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About the author

Andrea Downey
About the reviewerView full bio

Dra. Sarah Jarvis
SEO Executive
MA (Cantab), BM, BCh (Oxon), DRCOG, FRCGP, MBE
After training in medicine at Cambridge and Oxford, Dr Sarah Jarvis MBE became a GP.
Historial del artículo
La información en esta página es revisada por pares por clínicos calificados.
7 Sept 2020 | Última versión

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