A Malaga biomedical research body has linked obesity to anxiety and depression. The study by nutritionists at Ibima, which is linked to Malaga university and the city's two main hospitals, was published in the Scientific Reports journal, part of the Nature group.
Its main finding is that there is a possible link between the inflammation of body fat tissue and some types of mental illness, such as anxiety and depression. The study looked at obese and non-obese people.
Obesity, despite being often associated with metabolic disease such as type 2 diabetes and resistance to insulin, has also been associated with mental illness.
Around 35 per cent of obese people also have a mental illness, a percentage that the researchers considered to be "quite high". Their work studied body tissue to try to isolate a cause through using biomarkers and improve treatments.