A laboratory approved by the UK Accreditation Service was commissioned by Panorama to independently test the nutritional value of a fruit, yoghurt and savoury pouches from each of the six leading brands (Ella's Kitchen, Heinz, Piccolo, Little Freddie, Aldi and Lidl).

The investigation found:

• savoury pouches containing less than 5% of the key nutrient, iron, that an infant needs per day;

• a fruit pouch in which virtually all the vitamin C had been lost during the manufacturing process;

• fruit pouches marketed as having 'no added sugar' containing about four teaspoons of so-called 'free sugars' - which experts say is "intentionally misleading";

• pouches being marketed to babies as young as four months old, against the recommendations of the UK government and the World Health Organisation (WHO).

To find out more about the investigation findings and responses of the food brands, read the full article on the BBC website.