This is partly because calories-rich junk food is cheaper than healthier options." In short, poorer people cannot afford to eat well."Obesity is linked to people with lower incomes." Some 70 per cent of obesity comes from "inheritance", she adds – children with obese parents will more likely grow up to be overweight."Parents should take kids off fruit juice – it's not healthy, it's full of sugar." However, there's more to Britain's obesity crisis than portion sizes and fruit juice, Wollaston says.
Wollaston agrees that booze – and regular drinking – can act as a key driver for being overweight. A lot of people don't realise how many calories are in a bottle of beer, or wine.
You can get light wine these days, and of a lot of women are choosing lighter wines.
This is because it prioritises the breakdown of alcohol over the absorption and release of essential nutrients, so a heavy drinking session will slow down the amount of calories you’re able to burn off at the gym the next day." When we drink heavily, we also tend to allow ourselves a few extra treats – the kebab on the way home, or the toast and chocolate spread when in – as we find it harder to resist.
"Alcohol can have an impact on our ability to keep our willpower strong and stick to healthy diets, adding more to our weight and waistlines," she says.
Nowadays, the 'fat movement' is all about challenging prejudices. Accepting obesity is just as bad, in my book, as accepting 'skinny'. Both conditions also often lead to the people concerned being unhappy.
Delving into the figures today, one woman in four aged 18 to 24 is so overweight that their health is suffering. By comparison, 12.7 per cent of French women are overweight, 14.4 per cent of Spaniards and just 9.3 per cent of Italians, the figures compiled by Eurostat, the EU's statistical office, show. That British girls have come top of the league table for fatness in Europe signals that something is not right. What's behind Britain's obesity crisis among young girls?
You only have to think of how big bags of sweets and chocolates are these days, or crisps.
Everything comes in mammoth sizing – at the petrol garage, at the cinema." Fruit juice is also a real problem, Wollaston says.
"Many people may be surprised to know that in addition to containing seven calories per gram of pure alcohol, drinking can also negatively affect your metabolism.