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Federal regulators have sent warning letters to two companies for illegally selling probiotic products for use in preterm infants.

The U.S. Food and Drug Administration also sent a letter to health care providers warning of the risks.

Probiotic products contain live organisms such as bacteria or yeast. They are commonly found in dietary supplements.

These products may be dange...

Ginger supplements may help those with certain autoimmune diseases, such as lupus and rheumatoid arthritis, control inflammation.

New research has added evidence to support the impact of ginger on white blood cell function, particularly a type of cell called a neutrophil.

The researchers were particularly interested in neutrophil extracellular trap (NET) formation, also called NETos...

Lots of parents are giving their children the supplement melatonin to help with sleep, but is it safe?

In a new survey, the American Academy of Sleep Medicine (AASM) found that 46% of parents -- what it called a “shocking number” -- have given melatonin to children under the age of 13. About 30% gave their teenager melatonin to aid in sleep.

Yet, there is little evidence that m...

J.D. Butler was planning a future with his girlfriend at his favorite New York City restaurant when that future came to a sudden, crushing halt.

“They were planning on when she was moving in and arranging floor plans on the table, with where the furniture was going to go,” said his mother, Karen Butler, a lifelong New York resident. “And he had a grand mal seizure, and then his hear...

People who have psoriasis may want to get their vitamin D levels checked.

New research suggests that blood levels of the so-called "sunshine vitamin" may affect the severity of their condition. In psoriasis, skin cells build up and form dry, itchy, sometimes painful patches.

While synthetic vitamin D creams are an emerging therapy, the study suggests that a diet rich in vitamin D or...

More omega-3 fatty acids in your diet might prevent hearing loss as you age, researchers report.

Low levels of the omega-3 fatty acid docosahexaenoic acid (DHA) are linked to hearing loss in middle and old age, according to findings slated for presentation Monday at a meeting of the American Society for Nutrition, in Boston.

Middle-aged and older adults with higher DHA levels, howev...

Athletes using ketone supplements to boost their performance may be kidding themselves, researchers say.

The literature on the benefit of ketone supplements is mixed. Some studies have shown the supplements improve performance, but others say they have no effect or even worsen performance.

Natural ketones fuel the brain and muscles. A ketogenic diet of very low carbs and high fat c...

The herbal supplement berberine has become the latest social-media obsession for weight-loss, with some on TikTok calling it “nature's Ozempic.”

Experts don't agree.

“I would say it's a big exaggeration to call it ‘nature's Ozempic,'” said Dr...

An amino acid found in meat, fish and energy drinks might be a key regulator of aging in animals, a new study suggests.

However, experts warn that no one should start seeing Red Bull as a fountain of youth.

Researchers found that deficiencies in the amino acid, called taurine, seemed to be a prime driver of aging in lab mice: Their taurine levels naturally declined with age, but giv...

The supplement known as 5-HTP is available in both natural and synthetic versions and is used by some people to treat a variety of wellness issues.

Here's a look at what this supplement is, its safety profile, side effects and drug interactions, and the potential health benefits that 5-HTP has to offer you for a balanced lifestyle.

What is 5-HTP?

In your body, 5-hydroxytryptop...

When U.S. health officials reported a 500% spike in the number of poison center calls involving kids eating melatonin gummies last year, Harvard researchers decided to take a closer look at the sleep supplements and discovered a disturbing fact: They contained up to 347% more melatonin than the label stated.

What's more, five of the products also contained CBD in higher amounts than the l...

Taking vitamins may drain your wallet without helping your health, yet a new government survey shows most American adults take them, as do about one-third of children.

Researchers who were led by Suruchi Mishra, from the U.S. National Center for Health Statistics, found vitamin use was common from 2017 to March ...

For depressed or anxious children, taking melatonin may afford a good night's sleep and, as a result, lower the odds they will harm themselves, new research suggests.

The risk of self-harm increased before melatonin was prescribed and decreased by about half after kids started taking the supplement,

  • Steven Reinberg HealthDay Reporter
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  • March 27, 2023
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  • When people struggle to fall asleep, it's no surprise they seek solutions.

    Options can range from prescription medications to sleep therapy, good habits and an abundance of supplements.

    Taking magnesium for sleep is something some say has real benefits, but does it really?

    It's not entirely certain, but the mineral serves a variety of other important functions, so it just m...

    Can vitamin D lower dementia risk?

    Quite possibly, a team of British and Canadian researchers report.

    In their study, investigators spent roughly a decade tracking more than 12,000 older people. None had dementia at the start of the study period. In the end, the team determined that those who had been taking vitamin D supplements during that time appeared to face a 40% lower ri...

    Chromium picolinate is a supplement that many folks take, as it's touted to unlock insulin, burn fat and build muscle.

    But do you really need to add it to your diet when the mineral chromium is already present in many foods, albeit in tiny amounts?

    "There is little evidence or support for chromium supplementation, though advertisements suggest it can enhance muscle mass and help wit...

    The U.S. Food and Drug Administration said Thursday it can't regulate CBD supplements because there isn't enough evidence on their safety. The agency also called on Congress to create new rules for what has become a burgeoning industry.

    "The use of CBD raises various safety concerns, especially with long-term use," FDA Deputy Commissioner

  • Cara Murez and Robin Foster HealthDay Reporters
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  • January 27, 2023
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  • Vitamin D is widely promoted for better health, but if you're overweight, you might not reap the benefits.

    In a new study, researchers found a 30% to 40% reduction in cancer, cancer deaths and autoimmune diseases among people with a lower body mass index (BMI) who took vitamin D supplements,...

    Not all prescription drugs and dietary herbal supplements work well together.

    It's important to be aware of possible drug/supplement interactions that could be harmful, according to the U.S. National Center for Complementary and Integrative Health (NCCIH), a part of the National Institutes of Health.

    The ...

    Folks taking dietary supplements intended to help their heart health are just wasting their money, a new clinical trial suggests.

    Six supplements widely promoted as heart-healthy — fish oil, cinnamon, garlic, turmeric, plant sterols and red yeast rice — didn't do a thing to lower “bad” low-density lipoprotein (LDL) cholesterol or improve heart health, researchers found.

    “C...

    Fish has been dubbed "brain food," and a new study suggests that may really be true for middle-aged adults.

    Researchers found that among more than 2,000 middle-aged people, those with higher blood levels of omega-3 fatty acids performed b...

    A daily multivitamin might help keep your brain free from any decline in thinking skills, a new study suggests.

    In a trial of more than 21,000 men and women, the study authors reported that

  • Steven Reinberg HealthDay Reporter
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  • September 14, 2022
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  • If only you could pop vitamin D and fish oil supplements to fight the frailty that often comes with aging, but new research delivers a disappointing message: Don't count on it.

    In reaching that conclusion, t...

    Lori McClintock, the wife of Northern California congressman Tom McClintock, died late last year after taking white mulberry leaf, a herb used to treat diabetes, obesity and high cholesterol, a recently released report shows.

    The cause of death listed in the report was dehydration due to

  • By Robin Foster HealthDay Reporter
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  • August 25, 2022
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  • If your diet is low in fiber, you can do your gut some good by adding more -- regardless of the fiber source, new research suggests.

    Many people know fiber as the nutrient that keeps you regular. But it's also a key player in the makeup of the gut microbiome -- the vast collection of bacteria and other micr...

    Most Americans swear by dietary supplements, with nearly 3 of 4 people taking some type of supplement on a daily basis, a new HealthDay/Harris Poll has revealed.

    But many have a mistaken belief in the effectiveness of these supplements, which for the most part don't help folks live longer or healthier live...

    Seniors who take vitamin D supplements to improve their bone health and ward off fractures are just wasting their time and money, a major new study has found.

    These supplements did nothing to reduce their average risk of

    Vitamin D supplements are often touted for their health benefits, from boosting the immune system to guarding against cancer. But as one British man found out, it is possible to get too much of a good thing.

    Vitamin D overdosing -- clinically called hypervitaminosis D -- is linked to a range of potentia...

    Millions of people pop vitamins and supplements every day in hopes of staving off heart disease and cancer, but a new report finds the evidence to support that strategy is largely lacking.

    While there is some research showing that a daily multivitamin may slightly reduce cancer risk, the bigger pictur...

    About one-third of cancer nutrition information on the social media site Pinterest is misleading and posted by businesses trying to sell products, according to a new study.

    "Our results revealed a significant amount of misinformation about cancer and nutrition," said study co-author Tracy Crane, an assoc...

    A dietary supplement believed to protect against Alzheimer's disease might instead be potentially harmful to the brain, a new study warns.

    L-serine is an amino acid that serves many different roles in the body, and one is to influence the development and function of synapses in the brain.

    Seniors are often advised to take calcium supplements, but new research says the pills might significantly increase an aging person's risk of heart valve problems that contribute to heart failure.

    People taking either calcium supplements alone or calcium with vitamin D had a higher risk of heart-related death or death from any cause compared with people not taking supplements, the researc...

    If your child is a picky eater and you feel you need to give them dietary supplements, you're not alone.

    In a new poll of more than 1,200 U.S. parents with at least one child aged 1 to 10, more than half said they struggle to get their child to eat a well-balanced diet and half said they regularly give their child dietary supplements.

    About one-third of parents said their child is a...

    Americans have tossed and turned their way through the pandemic, and a new study shows they are increasingly turning to melatonin in an attempt to get some good rest.

    But the researchers also issued a warning, because some folks are using amounts that pose a risk to their health.

    In 2018, Americans were taking more than twice the amount of the over-the-counter sleep aid than a decad...

    Taking vitamin D supplements may help stave off psoriasis, rheumatoid arthritis, lupus and other autoimmune diseases, a new study suggests.

    Previous research has hinted at this connection, but the new study is the first randomized controlled trial to look at what happens when people are given vitamin D supplements and followed to see if they develop an

  • Denise Mann HealthDay Reporter
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  • January 27, 2022
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  • Here's a lesson many may have already learned over the past weekend: Don't count on ginseng, probiotics or any other so-called hangover cures.

    No evidence suggests hangover cures work, according to British scientists who studied nearly two dozen trials of these cure products. Their review was published Dec. 31 in the journal Addiction.

    "Our study has found that evidence on ...

    They may have other proven health benefits, but new research shows that fish oil supplements don't prevent depression or improve mood.

    Some experts recommend omega-3 fish oil supplements to help prevent depression in high-risk patients, but studies have yielded mixed results and there are no g...

    Many cancer patients take dietary supplements in hopes of keeping their disease at bay, but British researchers say there's little evidence it will pay off.

    In fact, they add, supplements may not only be ineffective, but harmful as well.

    "We found 1 in 5 people who had been treated for cancer mistakenly thought that taking vitamins or other supplements would help reduce the ris...

    Many people pop a zinc supplement at the first sign of a cold, and there's new evidence supporting the habit.

    Australian researchers found that the supplements appear to help shorten respiratory tract infections, such as colds, flu, sinusitis and pneumonia.

    Many over-the-counter cold and cough remedies offer only "marginal benefits," the researchers noted, making "zinc a viable 'na...

    A new study confirms that fish oil supplements may raise the risk of a common heart-rhythm disorder -- particularly when doses top 1 gram per day.

    At issue are medications and supplements containing omega-3 fatty acids, which are naturally found in fish oil.

    Fish is considered a generally heart-healthy food, but some studies have linked omega-3 in capsule form to an increased risk o...

    Taking vitamin D supplements won't improve painful symptoms of irritable bowel syndrome (IBS), British researchers report.

    IBS is a chronic digestive disorder that can cause stomach cramps, bloating, diarrhea and constipation. Symptoms come and go for some people, but the condition can severely affect quality of life for many.

    Previous research has suggested a link between low vitam...

    Growing numbers of Americans aren't getting enough iron in their diets most likely due to changes in farming practices and a shift away from red meat, researchers report.

    The upshot: Rates of iron-deficiency anemia are on the rise.

    "Iron deficiency remains a major public health issue even in a developed country such as the United States," Dr. Ian Griffin and Dr. Marta Rogido wr...

    Losing weight is hard, but many weight loss supplements promise to make the journey easy. Unfortunately, there's little high-quality research to back these claims, a new study shows.

    Hundreds of weight loss supplements like green tea extract, chitosan, guar gum and conjugated linoleic acid are being hawked by aggressive marketers. And an estimated 34% of Americans who want to lose weight ...

    Fish oil supplements are often touted as good for your heart health, but a new study finds they may also help fight depression.

    "Using a combination of laboratory and patient research, our study has provided exciting new insight into how omega-3 fatty acids bring about anti-inflammatory effects that improve depression," said lead author Alessandra Borsini, a postdoctoral neuroscientist at...

    Breast cancer patients who have adequate levels of vitamin D - the "sunshine vitamin" - at the time of their diagnosis have better long-term outcomes, a new study finds.

    Combined with the results of prior research, the new findings suggest "an ongoing benefit for patients who maintain sufficient levels [of vitamin D] through and beyond breast cancer treatment," said study lead author Son...

    If you're like most American adults, it might be time to reach for a piece of fruit, a plate of vegetables or a bowl of whole grains.

    Only 7% of adults get enough fiber, a type of carbohydrate that passes through the body undigested and supports not only regular bowel movements, but also offers important health benefits. Too little fiber is associated with a higher risk of both heart dise...

    Women who are struggling to get pregnant, beware of false dietary supplements that claim to help cure infertility and other reproductive health issues.

    Such supplements are not approved by the U.S. Food and Drug Administration and they could prevent patients from seeking effective, approved drugs, the agency warned.

    "These purported fertility aids seek to profit off of the vulnerabi...

    You're getting no real benefit from taking weight-loss supplements like garcinia cambogia, green tea extract, glucomannan, conjugated linoleic acid or chitosan, two new reviews show.

    Most of the clinical trials studied didn't show these supplements producing any weight loss among users, the researchers said. In the rare cases where people did lose weight, they didn't drop enough pounds to...

    Famed Antarctic explorer Ernest Shackleton may have suffered from a deficiency of the nutrient thiamine, a condition known as beriberi, say researchers who claim they have cracked this nearly 120-year-old mystery.

    Shackleton is known for his daring expeditions to Antarctica in the early 20th century. He experienced prolonged bouts of extreme shortness of breath and physical weakness on t...

    Many people take fish oil to protect their heart, but a new study suggests that prescription versions may raise the risk of a common heart rhythm disorder.

    At issue are prescription-strength omega-3 fatty acids, which are naturally found in fish oil. The medications are often prescribed to people with very high triglycerides, a type of blood fat linked to increased risk of heart attack an...