| Black cohosh is used to manage menopausal | | | | total of 1,102 had taken black cohosh. The mean |
| symptoms, including hot flashes, and may prevent | | | | overall observation time was 3.6 years. Results |
| breast cancer. In April 2007, a retrospective | | | | showed that black cohosh was not associated with |
| case-control study was published in the International | | | | an increase in the risk of recurrence but associated |
| Journal of Cancer revealing that black cohosh had a | | | | with prolonged disease-free survival. After 2 years |
| significant protective effect against breast cancer | | | | following initial diagnosis, 14% of the control group |
| due to its antiestrogen, antiproliferative and | | | | had developed a recurrence, while the black cohosh |
| antioxidant properties. But for someone with a | | | | group reached this proportion after 6.5 years. |
| history of breast cancer, use of estrogenic plants | | | | Now, onto the latest safety studies! Black cohosh |
| may be contraindicated. | | | | seems to have a relatively good safety profile. The |
| There are really two questions to address here: 1) is | | | | liver damage reported in a few individuals using black |
| black cohosh effective to treat hot flashes and 2) | | | | cohosh has been severe, but large numbers of |
| can women with a diagnosis of breast cancer safely | | | | women have taken the herb for years without |
| use black cohosh? | | | | reporting adverse health effects. In the case studies |
| Let's start with the issue of efficacy. In June 2006, a | | | | relating liver damage, we can't rule out the possibility |
| phase III, double blind, randomized, placebo-controlled | | | | that the black cohosh was tainted or |
| crossover trial conducted at Mayo Clinic was | | | | cross-contaminated. That's why it is so important to |
| published in the Journal of Clinical Oncology. | | | | seek quality controlled herbal products.With relevance |
| Researchers found that patients using 20 mg of black | | | | to cancer patients, black cohosh does not seem to |
| cohosh twice a day reported a decrease in hot flash | | | | exhibit phytoestrogenic activity and is in fact possibly |
| frequency by 17% compared to the placebo group | | | | an inhibitor of tumor growth (Aug 2007, Supportive |
| who reported a decrease of 26%. In other words, | | | | Care in Cancer). The 2007 Nutrition and Cancer study |
| this trial failed to provide any evidence that black | | | | found that black cohosh did not raise estrogen |
| cohosh reduced hot flashes more than the placebo. | | | | markers in the serum. Authors of a March 2007 |
| In April 2008, a summary of black cohosh trials | | | | study published in the International Journal of Clinical |
| conducted over 20 years was published in | | | | Pharmacology and Therapeutics reported that an |
| Menopause. Researchers looked at results of several | | | | increase in the risk of breast cancer recurrence for |
| trials involving a total of 1,581 women and 329 men. | | | | women using black cohosh, compared to women not |
| Results from the randomized trials in women | | | | treated with black cohosh, was unlikely. |
| demonstrated that hot flashes were not substantially | | | | So, my suggestion is to try black cohosh to see if it |
| decreased by black cohosh, or for that matter, by | | | | helps you manage your menopausal symptoms. We |
| vitamin E or a soy-based product. So while it appears | | | | know it's safe and there is a possibility that black |
| the most current literature on this topic has found | | | | cohosh may help you prevent a recurrence. I would |
| that black cohosh is not effective in treating | | | | recommend you try Remifemin, a quality-controlled |
| menopausal symptoms, smaller studies indicate it | | | | black cohosh dietary supplement developed and used |
| might be somewhat effective. And, there is potential | | | | by Europeans for years. It is now available in the |
| that black cohosh may reduce risk of breast cancer | | | | United States at many larger-chain drugstores and |
| recurrence. In a retrospective, cohort study published | | | | supermarkets. Follow package instructions. |
| in Nutrition and Cancer, 2007, of 18,861 patients, a | | | | |