Your Health: Black licorice can cause high blood pressure

2010-11-17T00:00:00Z 2011-04-20T08:37:53Z Your Health: Black licorice can cause high blood pressureBy The Graedons Tri State Neighbor
November 17, 2010 12:00 am  • 

Q: About 12 years ago, I experienced symptoms similar to stroke. I was hospitalized for five days, and several specialists examined me.

The symptoms quickly resolved and have not recurred. They finally diagnosed me as having atypical migraine. I never have headaches, although after that time I have had auras, which look like kaleidoscope lights.

No one ever figured out what triggered the migraine event. Licorice was never a suspect. Now though, I wonder if it could be the culprit.

I recently made a firm commitment to stop eating black licorice because of my hypertension. It’s too early to say for sure, but my frequent excruciating leg cramps seem less common, and so are the auras. Is red licorice as much of a health risk as black?

A: Black licorice can cause high blood pressure, hormonal imbalance and severe headaches. A Swedish gymnastics teacher was written up in The Lancet (Feb. 10, 1979) because her passion for licorice resulted in migraines, loss of libido and severe hypertension. When the licorice was discontinued, her symptoms subsided.

Red licorice is safe since it does not contain the ingredient (glycyrrhizin) that causes the problem.

Q: My 7-year-old grandson has warts on his toes. He’s been to the doctor, with no luck. What can I use to treat this?

A: One approach is to cut a piece of banana peel about the size of the wart and tape it on overnight. A new slice of banana skin nightly (white part touching the skin, yellow part out) may clear warts in a couple of weeks. Others have reported success by painting the warts with castor oil, vinegar or the white juice from a broken milkweed stem.

Q: When we ask how much water is healthy for us, the standard response is eight glasses of water per day. If someone had high blood pressure, could eight glasses of water per day be too much? I was thinking that since the first thing most doctors turn to for treating high blood pressure is a diuretic, maybe the problem is consuming too much water in the first place, as well as too much salt. Has there been any research on this?

A: There is surprisingly little research on the optimum amount of water most people should drink. Although it is common belief that people need eight glasses daily, there is no scientific support for this idea (Journal of the American Society of Nephrology, June 2008). The National Academy of Sciences recommends drinking when thirsty rather than consuming a specific number of glasses daily.

It is unlikely that drinking water raises blood pressure. A healthy body regulates fluids and electrolytes quickly. Although diuretics lower blood pressure, the exact mechanism remains mysterious (Journal of the Renin-Angiotensin-Aldosterone System, December 2004).

Q: My 86-year-old sister takes amitriptyline. I worry that this drug could be affecting her balance. She uses a cane and always seems unsteady on her feet. She has fallen many times. Is amitriptyline safe for someone her age?

A: This antidepressant is generally considered inappropriate for older people. Although it is sometimes prescribed to ease nerve pain or help people sleep, amitriptyline can cause mental confusion, lack of coordination, dizziness, dry mouth, blurred vision and constipation.

There is a list of drugs that should normally not be prescribed to older people, and amitriptyline is a prime example.

A fall that results in a fracture could be life-threatening. Your sister’s doctor should re-evaluate this prescription.

Q: I suffer from itching under my arms. I have tried many deodorants, but nothing helps.

Some time ago I read that milk of magnesia might be useful. Is that true?

A: Readers sing the praises of milk of magnesia as a gentle deodorant: “I am allergic to every kind of antiperspirant and commercial deodorant. I heard about applying milk of magnesia to my underarms and have been using it very successfully for six years. An added benefit is that there is no smell or residue on clothing. I wouldn’t go back to commercial products even if I could.”

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