Abstract
SummaryA growing world population and ongoing climate change have created a need to find new sources of high‐quality food, especially protein, that are sustainable and environmentally friendly and help to reduce unsustainable livestock production. Therefore, it is necessary to look for sources of protein from new raw materials or to use existing materials that have not been used on a large scale. The highest protein intake characterises athletes; thus, the market for high‐protein products should be targeted for them. This paper outlines the main problems associated with protein production to date, mainly from animal sources and some known plant sources such as pulses, which can cause gastrointestinal problems in athletes. This review aimed to propose several new/alternative protein sources (Single Cell Protein, edible insects, algae, and potato protein) that may have the potential for use in food, including food for athletes while solving the described problems associated with existing protein sources. Insects have the best amino acid composition; microbial and algal proteins have great potential but require further development of technology for application to food products. Potato proteins are of high value and quality but also contain glycoalkaloids. However, using them brings additional economic and environmental benefits.
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