Yes, you can eat wild insects in the UK for survival. However, catching wild insects is highly energy-intensive, and many carry parasites or toxins. For strict safety, wild bugs should always be thoroughly boiled or roasted to kill pathogens, and you should avoid bright colours and plant-feeding caterpillars. [1, 2, 3, 4, 5]

Safe Edible Insects in the UK

If you need to forage, focus on these easily identifiable and generally safe insects:

 

• Grasshoppers & Crickets: Extremely high in protein, but you must boil or cook them first to kill potential parasitic nematodes.
• Ants: Can be eaten raw or boiled. They provide a quick, slightly acidic, or citrus-like flavour.
• Earthworms: Plentiful in the UK, but you must purge their digestive tracts (squeeze out the dirt) and boil them to destroy harmful parasites.
• Beetle Larvae (Grubs): Soft-bodied, high in fat, and found inside rotting wood or under bark. [1, 2, 3, 4, 5]

 

Insects to Avoid

 

• Brightly Coloured Bugs: Many vibrant insects (like certain caterpillars or beetles) use bright colours as a warning that they are poisonous.
• Slugs and Snails: While common, they frequently eat toxic mushrooms and are known to carry severe parasites, making them risky.
• Bees and Wasps: While the larvae are edible, handling adult stinging insects can lead to dangerous and painful encounters. [1, 2, 3]

 

Note: Wild insects are not farmed to human food standards, so experts like those at Horizon Insects strongly advise against eating wild bugs outside of true life-or-death emergencies to avoid pesticide exposure and disease. [1, 2]