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NutritionFacts.org Video Podcast

Friday Favorites: Are Menopausal Hot Flashes Inevitable? How Can Soy Foods Help?

NutritionFacts.org Video Podcast

Michael Greger, M.D. FACLM

Nutrition, Alternative Health, Health & Fitness

4.8951 Ratings

🗓️ 1 May 2026

⏱️ 8 minutes

🧾️ Download transcript

Summary

Why do 85% of menopausal women suffer hot flashes in some countries but only 15% in others? Soy can be considered a first-line treatment for menopausal hot flash and night sweat symptoms.

Transcript

Click on a timestamp to play from that location

0:00.0

Swan, which stands for study of women's health across the nation is by far the

0:10.8

largest evaluation of menopausal symptoms in history, studying 16,000 American women

0:16.3

between the ages of 40 and 55.

0:19.5

They found that women over a body mass index of 27 or higher were

0:22.6

significantly more likely to suffer from hot flashes or night sweats, stiffness or

0:27.0

soreness, and urinary leakage. A BMI over 25 is considered overweight 30 obese, and

0:33.0

the average U.S. BMI? 29.8. Since fatty tissue is a source for estrogen, one might expect the reverse,

0:41.3

but the link between excess body fat and worse menopausal symptoms

0:45.3

indeed seems causal, since women randomized to a weight loss intervention,

0:49.3

experienced significant improvement in hot flashes,

0:52.3

and effect that may extend to bariatric

0:54.4

surgery.

0:56.1

In the Swan study, smoking and inactivity were also associated with more frequent symptoms.

1:01.7

It's always a good idea to quit smoking and exercise, but there are no interventional

1:05.3

trials on smoking cessation and menopausal symptoms to prove cause and effect, and randomized

1:10.4

controlled trials of exercise failed to show any symptom or relief.

1:13.6

Of course, you could just take hormone therapy,

1:16.6

but at the cost of significantly higher risk of suffering a heart attack,

1:20.6

stroke, blood clot, breast cancer, or gallbladder disease.

1:23.6

What can we do naturally to avoid the extra clots in cancer? Hot flashes,

1:29.3

also referred to as hot flushes, are the most common menopausal symptoms for which women seek

1:34.5

treatment. They afflict up to 80 to 85 percent of European and American women lasting,

...

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