"Introducing the sugary drinks tax is a great start, but is no silver bullet to tackle childhood obesity".
The sugar tax on soft drinks will hit consumers from today but health campaigners have hailed the extent of reformulations that will see many brands escape the levy. Former finance minister George Osborne, who unveiled the tax policy when in office, believes milkshakes with large quantities of sugar may be targeted next. Professor Nava Ashraf, from the London School of Economics, is a leader in the field of behavioural economics.
There has been a major surge in embracing a healthier approach to food and drink consumption, possibly partly due to the public becoming more aware of, and potentially influenced by, sugar content. Those with 5-8g of sugar per 100ml will face a tax of 18p per litre. Coca-Cola has also cut the sugar in a number of its brands, but is not altering its Classic Coke recipe, meaning a can could cost around 10 pense more.
Experts are urging governments to use taxes as a weapon to put off people from bad habits to help stop the spread of cancer, heart disease and type 2 diabetes.
The levy will apply to added sugar drinks with a total sugar content of 5g or more per 100ml - full details here. Sugar-sweetened soft drinks are now the single biggest source of dietary sugar for children and teenagers.
In Hungary the "sweet" tax resulted in a reduction of sugar in beverages is 40%.
"A war is being waged against sugar by the government and the media", said Emma Clifford, associate director of food & drink at Mintel.
When the company revealed the change there was uproar, and people were reportedly stockpiling the drink before the tax kicked in.
Funds raised by the sugar tax will be diverted into school sports, the Government insists.
'As that has happened, obesity rates have continued to rise'. They will get healthier too.
FactCheck's analysis of data from the NCDRisC project shows that in four countries which have had a sugary drinks tax in recent years (Mexico, France, Denmark and Hungary), average BMI (body mass index) and obesity prevalence increased or remained static, year-on-year, from 2008 to 2014.