Recent studies pointed out that live insects and their products (meals and oils) are suitable protein and fat sources and can be used in the nutrition of farmed monogastric animals. This is as an alternative to traditional plant-derived and animal-derived feedstuffs. To date very little information is available concerning the effects of the dietary inclusion of insects on feed digestibility and performance of ruminant animals. The aim of this editorial is to briefly review the published information on this topic.