Insects: sustainable protein sourceNine billion people are expected to live on our planet by 2050. To feed them all in a sustainable way, we need more than 250 million tonnes of additional protein a year – an increase of 50% compared to today’s level. In order to supply a growing global population with high-grade protein, new and innovative approaches are required today. One of the most promising sources to generate protein sustainably and with a low footprint is insects.
Insects such as fly larvae or mealworms are relatively easy to breed and rear. Some species such as the larvae of the Black Soldier Fly can even be fed with organic waste products such as farming or food waste. And they are remarkably efficient in transforming feed into protein: insects require only two kilograms of feed to product one kilogram of mass. Another benefit is their low space requirement: on a single square meter, insects are capable of producing one kilogram of protein. The yield could be further increased with vertical farming concepts. Besides that, excrements from the insects can be used as a fertilizer in farming.