Are poinsettias poisonous? Some holiday truths

  • Dec. 20, 2017 1:55 p.m.

CHICAGO — Are poinsettias really poisonous? Are snowflakes really pure as the driven snow? Does feasting really put on the pounds? Sure as sugarplums, myths and misconceptions pop up every holiday season. Here’s what science says about some of them:

FLOWER POWER

Poinsettias, those showy holiday plants with red and green foliage, are not nearly as harmful as a persistent myth says. Mild rashes from touching the plants or nausea from chewing or eating the leaves may occur but they aren’t deadly, for humans or their pets. Poinsettias belong to the same botanical family as rubber plants that produce latex, so some skin rashes occur in people allergic to latex. According to a Western Journal of Emergency Medicine research review, the plants’ toxic reputation “stems from a single unconfirmed death of a 2-year-old in Hawaii in 1919.”

Dr. Rachel Vreeman, an Indiana University pediatrician who has researched holiday myths, cited a study on more than 20,000 poison control centre reports involving contact with poinsettias.

“In none of those cases were there deaths or serious injury. In fact, more than 95 per cent of them required zero medical care,” she said.

The anglicized name comes from Joel Poinsett, a 19th century U.S. diplomat who brought the plant back from Mexico.

THE WHITE STUFF

To form snowflakes, moisture high in the atmosphere is frozen by clinging to particles that may include dust specks or soot. Add germs to that list. University of Florida microbiologist Brent Christner has found that bacteria commonly found on plants are surprisingly abundant ice “nucleators” present in snow from populated areas, barren mountain peaks and even Antarctica.

So is catching snowflakes on your tongue a bad idea?

“There’s a yuck factor,” Christner said. “It’s better than yellow snow.”

He said the number of bacteria in snow would probably be about 100-fold less than in the same amount of bottled water.

“There are a lot more things to be worried about in making you sick than ingesting snowflakes,” he said.

MOODY BLUES

The same things that can make holidays merry — great expectations and family time — can also be stressful. Holiday blues are a real thing for many people grieving loss or absence of a loved one, and wintertime can trigger true but transient depression in some people, a condition sometimes called seasonal affective disorder. It’s linked with lack of sunlight in winter and some scientists think affected people overproduce the sleep-regulating hormone melatonin. Research suggests it affects about 6 per cent of the U.S. population and rates are higher in Scandinavia. But contrary to popular belief, suicides peak in springtime, not winter. No one has figured out why.

HAIR OF THE DOG

Forget that bloody mary. If extra shots of bourbon in your eggnog have you feeling lousy the next day, drinking more alcohol — hair of the dog — won’t cure you.

Here’s what George Koob, director of the National Institute on Alcohol Abuse and Alcoholism, has to say about that:

“You are in a sense self-medicating a mild withdrawal syndrome by drinking more. The problem is that’s going to wear off and you’re going to have an even worse hangover.”

Alcohol is dehydrating so replenishing with lots of water or other non-alcoholic drinks can help relieve the symptoms. But experts emphasize that prevention is the healthiest cure.

Says Koob: “It all boils down to, don’t drink too much.”

So what about that saying, “hair of the dog?” According to an old folk remedy, a dog bite could be cured by putting the animal’s hair in the wound.

DOUGHN’T EAT IT

Bakers beware: sampling holiday cookie dough, or any raw dough, can make you sick. And recent research says it’s not just because dough often contains raw eggs, which may harbour salmonella bacteria. Flour is another culprit. A study published last month in the New England Journal of Medicine details a 2016 E. coli outbreak that hit dozens of people in 24 states that was linked with flour. Some patients had eaten or handled raw dough made with flour contaminated with that bacteria. Authorities recalled 10 million pounds of flour, some of which had been sold to restaurants that allow children to play with raw dough while waiting for their meals. Baking generally kills any bacteria.

A headline on a Food and Drug Administration consumer update sums up the agency’s advice: “Raw dough’s a raw deal.”

THE BOTTOM LINE

The truth about holiday weight gain depends on whether your Champagne glass is half empty or half full. One often-cited study says it’s commonly assumed that the average American gains 5 pounds between Thanksgiving and New Year’s Day. But the study authors found the average was a little less than 1 pound. Other studies have found it’s closer to 2 pounds, still barely enough to make your pants feel tight. An extra piece of pie or one gigantic holiday feast won’t doom you, says Indiana University’s Vreeman. The problem, she says, is that the extra pound or two at holiday time becomes a pattern year after year and adds up.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Red Deer woman loses student visa, ‘has no choice but to leave’ Canada

Victoria Forschle and her family came to Canada in 2008

Red Deer up to four active COVID-19 cases

Province announced 77 new confirmed cases across Alberta Friday

Agriculture trade show is a must, says Red Deer chamber

Red Deer & District Chamber of Commerce promotes trade show

$21M of improvements to be made to Olds College

More than $21 million in improvements will be made to Olds College,… Continue reading

NHL’s road to Edmonton and Toronto featured plenty of obstacles

Since early March, the novel coronavirus has affected almost every decision facing… Continue reading

How Conservative leadership hopefuls would address the WE scandal if they win

The ethics commissioner has been called in to see if Trudeau broke conflict-of-interest law

With debt, deficit numbers out, experts say Liberals need plan for growth

Borrowing will push the federal debt past $1 trillion by the end of the fiscal year

Pedestrian-only downtown a hit with residents as St. John’s adapts to pandemic

‘The city really got this right this time. We’re very happy’

Bosnian-Canadians mark 25th anniversary of Srebrenica massacre

‘It’s sad for a child to think that it’s normal, actually, to … have family members killed’

No winning ticket for Friday night’s $35 million Lotto Max jackpot

TORONTO — No winning ticket was sold for the $35 million jackpot… Continue reading

Most Read