This only means the flavours are derived from natural products like plants, bark, meat, milk, bone, etc. So not fully synthetic flavours (which are often from oil/gas), but still these will not be anything you would ever guess or recognise. Companies that use actual 'natural' flavours usually list them in the ingredientsas consumers take these as signals of the product being 'healthy' (e.g. fruit concentrates like apple concentrate or various citrus extracts, root extracts, leaf extracts, etc)