Eating ants and other insects could soon be recommended to protect against cancer, following a groundbreaking new study.
A series of experiments by Italian scientists show that the ubiquitous invertebrate in common with others such as grasshoppers and crickets contains high concentrations of antioxidants, The Telegraph reports.
The compounds are important for reducing chemical reactions in the body that produce free radicals, which are themselves believed to raise the risk of cancer. They have also been linked to higher chances of cardiovascular diseases and diabetes. Antioxidants are present in a range of foods, including fruit and vegetables.
Food scientists believe western consumers will have to begin incorporating insects into their diet in the coming decades, so a group at the University of Rome set out to discover the invertebrates’ antioxidant potential.
They found that after grinding down the insects, many had several times the concentration of antioxidants found in orange juice or olive oil, two of the items most frequently recommended to limit free radicals. Water-soluble extracts of grasshoppers, silkworm and crickets displayed the highest values of antioxidant capacity, five-fold higher than fresh orange juice.
Meanwhile grasshoppers, black ants and mealworms contain the highest levels of total polyphenols, another way of characterising antioxidant potential. Fat-soluble extracts of the silkworm, giant cicada and Africa caterpillars showed an antioxidant capacity twice that of olive oil.
Professor Mauro Serafini, who led the research, said: “At least two billion people – a quarter of the world’s population regularly eat insects. “The rest of us will need a bit more encouragement. “Edible insects are an excellent source of protein, polyunsaturated fatty acids, minerals, vitamins and fibre.
The insects that were themselves vegetarian had much higher antioxidant capacity compared to those such as tarantulas and black scorpions.
Among the different species available for human consumption, Coleoptera (beetles), Lepidoptera (African caterpillars) and Hymenoptera (bees, wasps and ants) represent 31, 18 and 14 per cent of total insect consumption around the world respectively.
