Should healthy eating be a human right? A new study shows that poorer people in the UK are targeted by the companies that sell junk food.
Junk food is half cost of a good diet
Toll: One in ten English children are obese by the time they start primary school. By the time they are in Year 6, the figure is one in every five. Glossary
Fast food - Easily-prepared processed foods.
Obese - For adults, obesity is defined as a Body Mass Index (BMI) of 30 or more. A BMI of 25 or more is classed as overweight.
Deprived - Not having the things that are needed for a pleasant or successful life.
NHS - The National Health Service, the publicly funded healthcare system in the UK. The NHS was founded in 1948.
Government - The group of people who govern - or lead - the country.
Local councils - Groups of people elected to govern a region, city or town within a country and organise services for it.