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CL Answers (19)

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Recalls & Warnings (48)

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Clinical Updates (5)

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9/11/2011

Better Sleep with Valerian

A recent study evaluated the effect of valerian extract on postmenopausal women with insomnia. Among those women who took valerian, 30% reported an improvement in their sleep compared to only 4% in the placebo group. More details, including the dosage and type of valerian used in the study, is found in an update to the Valerian Supplements Review -- which includes our quality ratings of valerian products. More >>
9/26/2020

Licorice Danger

A man died after consuming large servings of licorice for several weeks, according to a recent report. Learn about the risks of licorice and the types of products in which it is found in our article about Licorice Root Tea.
5/03/2017

Ashwagandha Improves Memory

An 8-week study among men and women with mild cognitive impairment found ashwagandha root extract to improve many aspects of cognitive function compared to placebo. Studies have shown a range of benefits with ashwagandha, particularly in reducing stress and anxiety, although studies have been small. For details, see the "What It Does" section of the Ashwagandha Supplements Review >>
10/11/2017

Ginger for Nausea During Chemo?

Ginger and ginger extracts help reduce nausea in certain situations. A recent placebo-controlled study evaluated its effect on people undergoing chemotherapy and the results suggest it may be more useful in some people than in others. For details, see the "What It Does" section of the Ginger Supplements Review, which includes our Top Picks for ginger root powders and extracts.
9/24/2019

Lead in Turmeric

A new report reveals that in some parts of the world where turmeric is grown, lead is being intentionally added. Find out where and why in the Quality Concerns section of the Turmeric and Curcumin Review. ConsumerLab tests all turmeric root powder products for lead and other heavy metals.

News Releases (19)

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