The spice nutmeg may have a relatively narrow margin of safety.
Images thanks to Frank C. Müller via Wikimedia Commons
In my research on cinnamon I ran across a peculiar paper, speculating that certain natural constituents of spices such as nutmeg may form amphetamine compounds within the body a "sufficient to elevate the mood and help provide some added Christmas cheer" during the holiday season. This hypothetical risk was raised as far back as the 60's in the New England Journal, where it was pondered whether the age-old custom of adding nutmeg to eggnog arose from the psychopharmacological effects described in cases of nutmeg intoxication. Such cases evidently go back to the 1500's, where it was used as an abortifacent, to induce a miscarriage and in the 1960s as a psychotropic drug. The researchers conclude that "While nutmeg is much cheaper for use and probably less dangerous than heroine, you don't want to take too much. The toxic dose of nutmeg is two to three teaspoons, which I assumed no one would ever come close to unintentionally, until I saw this report in which a couple ate some pasta and collapsed, were hospitalized. A big mystery until the "husband revealed that he had accidentally added one third of a jar of nutmeg to the meal whilst cooking it." That's like about 4 teaspoons. I don't know they could have ate it. I imagine the poor wife just trying to be polite.
To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring watch the above video. This is just an approximation of the audio contributed by Jonathan Hodgson.
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There are also potentially toxic compounds in certain types of cinnamon. See my last video Update on Cinnamon for Blood Sugar Control.
You can also overdo other healthful plant foods if you consume too much of the yellow curry spice turmeric, drink too much tea, eat too much soy, too much seaweed, too many broccoli sprouts, and even too many raw cruciferous vegetables.
One more video in this three part series on the safety of spices in The Safety of Tarragon next.
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