**4. Conclusions**

Nowadays, sustainable ingredients gain more and more attention due to the beneficial and unique characteristics which make them an attractive source of high added-value compounds that could be utilized to fortify different products such as cosmetics and functional foods. Based on the result provided by several studies it can be concluded that healthy sustainable products provide protein, fat, minerals and vitamins in a very precise form and adequate content being recognized as a delicacy and therefore preferred by big part over the globe. It is important to note that literature data show an increasing demand to foods that has low calories, low fat and low cholesterol content and functional foods, which are defined as foods that have positive effects on human health. As an overall conclusion it can be stated that the studied and presented sustainable ingredients have great potential to be used as a natural source of bioactive compounds for the production of functional foods.
