This invention concerns methods for the processing and modifying of natural waste, the so called 'side streams', from the foodstuffs industry so that the nutrients still present in the waste can be reused, so that this can make a contribution to pure, natural, clean-label foodstuffs that contribute to sustainability and to an improvement of the public health in various ways with the objective of binding water in foodstuffs. The binding of water has the effect of making foodstuffs more tender and/or contain fewer ingredients and/or have an oil-reducing effect (after all, where there is water, there cannot be oil). In addition, the current invention concerns the food ingredients and foodstuffs obtained by this method.
