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What is Menopause?

Menopause literally means “cessation of periods.” Most women reach natural menopause between the ages of 45 and 54. Sometimes called “puberty in reverse,” menopause is a time when a woman’s ovaries shut down. During this transition, hormone levels fluctuate greatly, causing many of the symptoms we associate with menopause.


No two women experience menopause the same way. Some may have severe symptoms, while others make the transition with only mild interruptions to their daily lives.

Common symptoms include:*

  • Hot flashes
  • Mood swings
  • Irregular periods
  • Insomnia
  • Memory loss
  • Depression
  • Rapid heart beat
  • Vaginal dryness
  • Headaches
  • Muscle or joint pain
  • Vertigo or dizziness

If you are experiencing one or more of these symptoms, it's possible that you are beginning your journey through menopause. Explore our symptom checker to find out.

Easing Menopausal Symptoms

Women should first make positive lifestyle changes, such as not smoking, eating a healthy diet, maintaining a healthy weight and being physically active. Additionally, whole soybean-based soy isoflavone extracts have been scientifically proven to ease hot flashes.

Frequently Asked Questions About Soy Isoflavones

How do soy isoflavones help ease menopausal symptoms? 

Soybeans, soy-based foods and soy isoflavone extracts derived from the whole soybean contain phytoestrogens. Phytoestrogens are a class of plant-based compounds structurally similar to estrogen that can have moderate estrogen-like effects.

What is an effective dose of soy isoflavones? 

Generally, 50 to 55 mg of isoflavones daily, as found in Novasoy® products, provides the amount of genistein shown to be clinically effective in reducing hot flashes.

Can women get enough soy isoflavones through soyfoods?

Yes, but for some women it would not be easy. Women would need to eat the equivalent of one-half pound of tofu daily to get enough soy isoflavones for effective hot flash relief. Not surprisingly, women often find supplements easier to incorporate into their active, busy lifestyles.

How do we know soy isoflavone extracts are effective? 

Many previous studies have been inconclusive about the efficacy of soy isoflavones. However, a recent critical analysis of previously published studies found that supplements with high genistein contents (15mg or above) are consistently effective in reducing the frequency and severity of menopause symptoms such as hot flashes.

How do I find the right type of soy isoflavone? 

Because manufacturers do not always include individual isoflavone components on the ingredient panel, the best and easiest way to ensure that you get the correct level is to look for the Novasoy leaf on packaging. Novasoy soy isoflavones are derived from virtually the whole soybean and, therefore, include the kind and amount of soy isoflavones that were shown in multiple studies to be effective. For a list of soy isoflavone supplements that contain Novasoy, see our Product Locator.

Where can I find whole soybean-based soy isoflavones?

Most health stores, supermarkets and drug stores carry supplements. For a complete list of brands and where to buy them, visit our Product Locator.

*Symptoms derived from sources such as the Kupperman Index and Greene Menopause Index. Not all symptoms are experienced by all women, and you may experience symptoms other than these.

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.