Thursday, 25 January 2018

Nutmeg - a dangerous spice


Medicinal properties and research

In the 19th century, nutmeg was thought to be an abortifacient, which led to numerous recorded cases of nutmeg poisoning. Although used as a folk treatment for other ailments, nutmeg has no proven medicinal value.

One study showed that the compound macelignan isolated from Myristica fragrans may exert antimicrobial activity against Streptococcus mutans, but this is not a confirmed treatment.

In doses exceeding its use as a seasoning, nutmeg may interact with anxiolytic drugs, produce allergic reactions, cause contact dermatitis, or evoke acute episodes of psychosis.

Psychoactivity and toxicity

Effects

In low doses, nutmeg produces no noticeable physiological or neurological response, but in large doses, raw nutmeg has psychoactive effects deriving from anticholinergic-like hallucinogenic mechanisms attributed to myristicin and elemicin. Myristicin, a monoamine oxidase inhibitor and psychoactive substance, can induce convulsions, palpitations, nausea, eventual dehydration, and generalized body pain. For these reasons in some countries, whole or ground nutmeg may have import restrictions except in spice mixtures containing less than 20 percent nutmeg.

Nutmeg poisonings occur by accidental consumption in children and by intentional abuse with other drugs in teenagers. Fatal myristicin poisonings in humans are rare, but three have been reported, including one in an 8-year-old child and another in a 55-year-old adult, with the latter case attributed to a combination with flunitrazepam.

Nutmeg intoxication can vary greatly from person to person, but is often associated with side effects such as excitedness, anxiety, confusion, headaches, nausea, dizziness, dry mouth, redness in eyes, and amnesia. Nutmeg poisoning is also reported to induce hallucinogenic effects, such as visual distortions and paranoia. Although rarely reported, nutmeg overdose can result in death, especially if combined with other drugs. Intoxication takes several hours before maximum effect is experienced. The effects of nutmeg intoxication may last for several days.

Toxicity during pregnancy

Nutmeg was once considered an abortifacient, but may be safe for culinary use during pregnancy. However, it inhibits prostaglandin production and contains hallucinogens that may affect the fetus if consumed in large quantities.

Toxicity to dogs

Nutmeg is highly neurotoxic to dogs and causes seizures, tremors, and nervous system disorders which can be fatal. Nutmeg's rich, spicy scent is attractive to dogs, which can result in a dog ingesting a lethal amount of this spice. Eggnog and other food preparations which contain nutmeg should not be given to dogs.

https://en.wikipedia.org/wiki/Nutmeg


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