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CL Answers (75)

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Recalls & Warnings (52)

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Clinical Updates (35)

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2/18/2020

Saffron for Better Sleep?

A recent, preliminary study suggests that saffron may help with sleep. Get the details plus information about other supplements that may help or interfere with sleep, in our answer to the question: Which supplements can help me sleep?
7/06/2019

Casein Peptides for Better Sleep?

People with difficulty sleeping were given a casein hydrolysate to see if it would help them sleep. Find out if it worked in the Casein section of the Protein Powders, Drinks and Shakes Review. Also see our Top Picks among casein and other protein products.
6/30/2020

CBD for Sleep?

The ability of CBD to improve sleep may depend on the dose given and whether there are underlying conditions causing a sleep problem. See the results of the latest study and learn more in the What It Does section of the CBD and Hemp Extracts Review. Also see our Top Picks for CBD.
1/04/2020

Foods That May Help Sleep

In addition to supplements like melatonin that can aid sleep, certain foods are associated with reduced risk of insomnia. We've added information about this to our answer to the question: Which supplements can help me sleep?
5/01/2021

Saffron for Sleep?

Can saffron extract improve sleep in people with mild to moderate insomnia? See what a new study found in our updated answer to the question: Which supplements can help me sleep and which cause insomnia?
10/16/2020

Melatonin for Better Sleep

Can melatonin improve sleep in people hospitalized and receiving intensive care? See what a recent study found in the What It Does section of our Melatonin Supplements Review. Also learn about melatonin for improving sleep with other conditions, and see our Top Picks for melatonin.
8/21/2021

Bacopa for Better Sleep and Mood?

Does Bacopa extract improve sleep or mood? Find out what a recent study showed in our updated answer to the question: Does Bacopa extract improve memory, mood or sleep? Is it safe?
9/04/2021

Saffron for Better Sleep?

Can taking saffron extract improve sleep in people with insomnia? See what a recent study found in our updated article about Supplements and Sleep.
6/06/2020

Melatonin for Sleep and Parkinson's

Melatonin is known to trigger sleep, but can it help people with Parkinson’s disease? See the results of the latest study in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks for melatonin.
11/07/2017

Melatonin Improves Sleep in Children with Autism

Prolonged-release melatonin helped children with autism fall asleep faster and stay asleep longer in a new study. Get the details, plus more about the best way to take melatonin to get a good night's sleep, in the "What It Does" section of the Melatonin Supplements Review >> [Also see our Top Picks for melatonin supplements in the Review.]
3/19/2019

Melatonin for Troubled Sleep?

Does melatonin supplementation help people with a condition involving intense dreams as well as laughing, yelling, kicking or punching during sleep? Learn what a recent study found in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks for melatonin.
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 >>
9/29/2015

Melatonin Helps Post-Op Sleep

A study found that giving melatonin to women significantly improved their sleep time during the weeks after breast cancer surgery. For details, including our tests of products, see the Melatonin Supplements Review >>
8/24/2021

Parkinson's Disease: 5-HTP for Sleep?

Can supplementation with 5-HTP reduce sleep disturbances in people with Parkinson's disease? See what a recent study found in the What It Does section of our L-Tryptophan and 5-HTP Supplements Review.

Also see our answer to the question: Do supplements help with Parkinson's disease treatment or prevention?
11/11/2021

Sleep, Drink, and COVID Hospitalization Risk

Lack of sleep and frequent consumption of certain beverages may each increase the risk of being hospitalized if you get COVID-19, according to a recent study. Get the details in our updated answer to the question: How are you staying healthy during the coronavirus pandemic?
4/22/2020

Melatonin During Chemotherapy?

Does melatonin improve sleep quality and have other benefits during chemotherapy for breast cancer? Find out what a recent study showed in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks for melatonin.
8/29/2020

Melatonin for Nightshift Workers?

Does using melatonin before going to sleep in the morning improve attention and concentration in people working nightshifts? Find out what a recent study showed in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks for Melatonin.
8/21/2020

Ashwagandha for Sleep

Can ashwagandha help people with insomnia fall asleep and stay asleep longer? Find out what studies are showing in the What It Does section of the Ashwagandha Supplements Review. Also see our Top Picks for ashwagandha.
11/09/2019

Supplement for Social Anxiety?

High-dose CBD was given to teenagers with social anxiety. Learn what happened in the Anxiety, PTSD, and Sleep section of the CBD and Hemp Extract Review. Also see our Top Pick among products.
5/27/2020

Ashwagandha for Better Sleep?

Ashwagandha, which is often used for anxiety and stress, was recently tested in people with insomnia. Did it help them fall asleep? Find out in the What It Does section of the Ashwagandha Supplements Review. Also see our Top Pick for ashwagandha.
1/15/2019

Anxiety Treatment -- Low-Dose CBD?

Does low-dose CBD (cannabidiol) help with anxiety and sleep disorders? See the results of a recently published case series in the What It Does section of the CBD & Hemp Extract Supplements Review. Also see our Top Pick for CBD.
4/12/2017

Melatonin vs. Light Therapy for Sleep

A recent study found that melatonin was slightly better than light therapy in helping children fall asleep. The overall results, however, may have been better with a lower dose. For details see the "What It Does" section of the Melatonin Supplements Review >>
10/05/2019

L-Theanine for Sleep and Cognition?

Several studies have evaluated whether a single dose of L-theanine (found in green tea) can reduce stress and anxiety. A new study has evaluated the effect of L-theanine when taken daily for several weeks. See the results in the What It Does section of the L-Theanine Supplements Review. Also see our top choices for L-Theanine.
7/28/2018

Melatonin and Menopause

Can taking melatonin reduce the severity of menopause symptoms, such as difficulty sleeping, hot flashes, and sweats? Find out what a recent study showed in the What It Does section of the Melatonin Supplements Review. (Also see our Top Pick for melatonin.)
7/15/2017

Lutein May Reduce Eye Strain and Headaches

Taking a combination of lutein and other carotenoids may help reduce eye strain, fatigue, headaches and sleep problems associated with extended time spent in front of computer screens. Get the details in the "What It Does" section of our Vision Supplements Review. The Review includes our tests and quality comparisons of popular vision supplements.
12/08/2016

Vitamin D Keeping You Up?

A study of women given daily doses of vitamin D found that those who achieved the highest blood levels of vitamin D experienced a deterioration in the quality of their sleep. This is consistent with an earlier study showing decreased production of melatonin with high-dose vitamin D. For details, see the "Concerns and Cautions" section of the Vitamin D Supplements Review >>
10/31/2020

Melatonin for Insomnia?

Can melatonin help middle-aged men and women with insomnia fall asleep faster or improve sleep quality? Find out what a new study showed in the What It Does section of our Melatonin Supplements Review. Also see our Top Picks for melatonin.
11/18/2021

Does Melatonin Increase Alzheimer’s Risk?

My doctor said that melatonin may increase the risk of Alzheimer's as some sleeping pills do. Is this true? See the answer in Concerns and Cautions section of the Melatonin Supplements Review.
12/03/2021

Fracture Risk with Melatonin Supplements?

This week a newsletter reader asked if taking 3 mg of melatonin every night for sleep can increase the risk of fractures. Get the answer and find out why this is a valid concern in the Concerns and Cautions section of our Melatonin Supplements. Also see our Top Picks among melatonin supplements.
10/27/2021

Vitamin D and Insomnia

Does vitamin D supplementation improve sleep or reduce insomnia in people with low blood levels of vitamin D? See what a new study found in the What It Does section of our Vitamin D Supplements Review.
11/05/2021

When Melatonin Does or Doesn't Help in Hospitals

See the latest research on whether or not melatonin helps people undergoing medical procedures or when hospitalized. Also learn if melatonin has been shown to help with other sleep issues. It's all in our Melatonin Supplements Review, which includes our Top Picks for melatonin.
6/08/2021

Melatonin & Weight

Can melatonin supplementation improve sleep or reduce weight? See what a new study among nightshift workers found in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks for melatonin.
8/28/2021

Therapy for Tinnitus?

A recent study tested whether cognitive behavioral therapy (CBT) could reduce the severity of tinnitus and tinnitus-related issues, such as trouble sleeping. See the results in our updated answer to the question: Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
7/13/2021

Melatonin and Autism

Can melatonin supplementation improve sleep, behavior, or mood in children with autism spectrum disorder? See what a new study found in the What It Does section of the Melatonin Supplements Review. Also see our Top Picks among melatonin supplements.
10/05/2021

Glycine for Urinary Frequency?

Can supplementation with the amino acid glycine improve symptoms of overactive bladder or reduce urinary frequency? See what a new study found in our updated answer to the question: Can glycine improve sleep or reduce nighttime urinary frequency?

News Releases (19)

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