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Risks of Eating Maggots

By Monica Ford ; Updated July 27, 2017

Maggots are fly larva. Their small, white, articulated, worm-like bodies usually are found on or near their food source. Maggots eat fecal matter, decaying food and flesh to name a few. They play an important role in the food chain by decomposing rotting biomaterial and recycling usable nutrients back into the earth. Flies lay up to 250 eggs on a food source. Then, the larvae hatch within 20 hours and proceed to feed. Though maggots sometimes are used in medicine to debride and heal wounds, there are risks associated with human and animal ingestion of maggots. Myiasis refers to an infection of any animal by maggots or fly larvae. This is usually seen in livestock such as sheep and cattle.

Intestinal Myiasis

Human or animal ingestion of food-harboring fly eggs can cause intestinal myiasis. Once this food is ingested, the eggs can survive the animal’s stomach acid on their way to the intestine, where they will hatch. From there, the larvae can penetrate and implant themselves into the host’s organs, causing internal damage such as bacterial infections, sepsis and, if untreated, death. Though the larvae are likely to fall out of the body because they commonly pupate in dry places, anyone experiencing intestinal myiasis should consult a doctor immediately. Intestinal myiasis usually is treated with purgatives or albendazole, a drug used to in the treatment of various worm infestations.

External Myiasis

External myiasis occurs when larvae enter the body through any orifice or when flies lay their eggs in open wounds, where the larvae will feed on decaying tissue. Some fly species, such as the screwworm fly, also known as the “flesh eater,” burrow into the skin to feed on live tissue. An individual or doctor can manually extract maggots in a wound. This is a delicate procedure, as the larval body could break during extraction and release skin-irritating fluids into the host. Another method to rid a human or animal wound of maggots is to cut off the maggot’s access to oxygen, using petroleum jelly. This causes the maggot to ascend from deeper layers of skin to be more easily removed. Always seek the advice of your doctor, as an infestation of maggots can lead to skin lesions, sepsis, anemia and even death.

Food Poisoning

Maggots are not known to cause food poisoning, per say. In fact, in some circles, crispy fried maggots are considered the height of avant-garde gourmet. So, unless you are relishing a sanitary maggot on toast point, eating maggots is a risky undertaking, because where there are maggots, there is rotting food. If you do find yourself eating rotting food infested with maggots, you are likely to vomit, maggots and all. This probably is due to food poisoning rather the presence of maggots. When treating food poisoning, keep hydrated and rested. Over-the-counter medications are rarely required but can be used if diarrhea or vomiting persists.

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