Coating chicken or fish with breadcrumbs is a great way to add flavour to your dinner. This packet is a ready-made mix which you can use to add some parmesan flavour. But wouldn't you rather add real parmesan instead?
Breadcrumbs
[wheat flour (gluten), water, yeast, salt, palm oil, emulsifier (472e), colour (160b), acidity regulator (262)]
This tells us that flour, water, yeast and salt - which makes bread - are in this mix. But there is also palm oil, which many people avoid. Some palm oil is now produced from renewable sources but three-quarters of all palm oil comes from Malaysia and Indonesia where rainforests - housing the Bornean and Sumatran orang-utans and other flora and fauna - are being destroyed. Some people like to avoid eating it and so listing it here allows them that choice.
There is also the emulsifier fatty acid esters of glycerol (472e) and annatto (160b) for colouring which is made from the seed coat of the tropical annatto tree. Some people have allergic reactions to this but it is natural.