What is the difference between products that are a source of fibre vs high in fibre?

Products marked with ‘source of fibre’ contain at least 3 g of fibre per 100 g or at least 1,5 g of fibre per 100 kcal.

Products marked with ‘high in fibre’ contain at least 6 g of fibre per 100 g or at least 3 g of fibre per 100 kcal.