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2017

December
Folic Acid & Risk of Autism -- (12/26/2017) Supplementing with adequate (and not excessive) folic acid around the time of conception is associated with a lower risk of autism in offspring, and a recent study suggests this may be particularly important for women who take antiepileptic medication. For details, see the "Folate" section of the B Vitamin Supplements Review >> (Also see information about getting folic acid from prenatal vitamins in the "Prenatal" section of the Multivitamin Review.)
Folic Acid for Cognition -- (12/23/2017) Giving folic acid to older people with relatively low levels of blood folate resulted in improved cognitive performance, according to a recent study. For details, see the "Memory, Cognition, and Alzheimer's Disease" section in the B Vitamin Supplements Review >> (Also see our Top Picks for folate and other B vitamin supplements.)
Can Fish Oil Help Statins? -- (12/20/2017) Adding fish oil to cholesterol-lowering statin therapy was found to provide added benefit in certain situations. See the details, including dosage of EPA and DHA, in the "What It Does" section of the Fish Oil Supplements Review > (Also see our Top Picks for fish oil supplements).
Probiotic for Dermatitis -- (12/19/2017) Atopic dermatitis is a recurrent, itchy inflammation of the skin. Taking a daily probiotic mixture was found to significantly reduce symptoms and the need for topical steroids in children with atopic dermatitis. Details are in the "What It Does" section of the Probiotic Supplements Review >>
Vitamin A & Autism -- (12/17/2017) Giving vitamin A to young children with autism spectrum disorders and low blood levels of vitamin A (as retinol) seemed to improve some symptoms of ASD, according to a pilot study. For details, see the "What It Does" section of the Vitamin A Supplements Review >>
Tea & Iron Absorption -- (12/16/2017) A surprising number of foods and beverages, including tea, can interfere with the absorption of iron. When you drink your tea can make a big difference, according to a new study. Get the details in the Iron Supplements Review >>
Danger from Too Much Vitamin B6 -- (12/14/2017) A women who was consuming large amounts of an energy drink as well as a B-vitamin complex developed symptoms of vitamin B6 (pyridoxine) toxicity (which may not be reversible), according to a recent report. Get the details in the "B6" section of B Vitamin Supplements Review >>

CL has long warned that energy drinks and shots often contain large amounts of B6 and other B vitamins.
Skin Rash from Ginkgo -- (12/12/2017) Although not common, be aware that skin reactions have been reported from taking Ginkgo biloba. The most recent report involved a young man who experienced symptoms the same day he began taking a popular ginkgo supplement. See the details in the "Concerns and Cautions" section of the Ginkgo Supplements Review >>
Lower Heart Risk With Olive Oil -- (12/10/2017) Using olive oil was associated with a dramatic reduction in the risk of cardiovascular disease in a recent study. But what about using olive oil along with other oils? Get the results and learn more in the "What It Does" section of the Extra Virgin Olive Oils Review. Also see our Top Picks among extra virgin olive oils.
Creatine Pumps Up Muscles -- (12/9/2017) Giving creatine during a resistance-training program significantly boosted muscle size more than placebo in a recent study — and certain muscles increased in size more than others. Learn more in the "What It Does" section of the Muscle & Workout Supplements Review (Creatine & BCAAs). (Also see our Top Picks and Cautions and Concerns for creatine).
Biotin Interference With Vitamin D Test -- (12/5/2017) Last week we reported that high doses of biotin (found in B complexes and hair and nail supplements) can interfere with certain blood tests. A study recently showed that biotin can also artificially inflate a test for vitamin D. Get the details in the "Biotin" section of the B Vitamin Supplements Review >>
Fish Oil for Stress? -- (12/5/2017) A recent study investigated whether taking fish oil rich in the omega-3 fatty acid EPA would reduce chronic stress. See the results in the "What It Does" section of the Fish Oil Supplements Review >>
What NAC (N-Acetylcysteine) -- (12/4/2017) NAC is both a supplement and a drug used to treat conditions ranging from flu and chronic bronchitis to compulsive behavior. A recent study evaluated its use in preventing kidney injury during angiography (imaging of blood vessels). Get the results and learn more in the "What It Does" section of the NAC (N-Acetylcysteine) Supplements Review >> Also see our top choices among NAC supplements.
Autism Risk With Low Vitamin D -- (12/2/2017) Babies born with very low blood levels of vitamin D are more likely to be autistic, according to a new study. This is consistent with a study published last year showing a higher rate of autistic children in mothers with very low vitamin D blood levels during pregnancy. Get the details in the "What It Does" section of the Vitamin D Supplements Review >> (Also see our Top Picks among vitamin D supplements.)
Citrulline for Improving Exercise? -- (12/2/2017) Citrulline, a compound which is converted to arginine in the body, is often added to workout supplements to improve exercise performance. But does it really help? See what a new study found in the "What It Does" section of the L-Arginine Supplements Review >> (Also see our Top Picks among L-arginine supplements.)

November
Curcumin for Muscle Soreness -- (11/28/2017) Another study was published recently suggesting that curcumin can reduce muscle soreness after exercise. However, the efficacy of curcumin for this use is questionable. For details, see the "What It Does" section of the Turmeric and Curcumin Supplements Review >> (Also see our Top Picks for turmeric and curcumin supplements.)
Growing Concern with Biotin Causing False Lab Results -- (11/28/2017) Biotin (a B vitamin found in B-complex and hair and nail supplements) can interfere with laboratory results resulting in the missed diagnosis or misdiagnosis of cardiovascular and hormonal conditions, such as Graves' disease (a form of hyperthyroidism). Physicians and lab personnel may be unaware of this interference. For details, see the "Biotin" section of the B Vitamins Review >>
Signs of B12 Deficiency -- (11/26/2017) B12 deficiency is not uncommon, most often affecting older people. Symptoms include anemia, fatigue, tingling in the arms and legs and loss of balance -- but a recent case report highlights a lesser-known sign of B12 deficiency. Find out more, plus how much B12 you should get in the "B12" section of the B Vitamins Review >> (Also see our Top Picks for vitamin B12 and other B vitamins.)
How Hot Should Green Tea Be? -- (11/25/2017) Drinking green tea may reduce the risk of certain cancers, but its effect on gastric (stomach) cancer may depend on the temperature at which you drink it, according to a new study. Find out what the best temperature seems to be in the "What It Does" section of the Green Tea Review >> (Also see how brands of green tea, including matcha, stack up in our tests.)
Vitamin D and Cardiovascular Disease -- (11/21/2017) Can high doses of vitamin D improve cardiovascular function? A large, one-year study in England recently sought to answer this question. Learn what the researchers discovered in the "What It Does" section of the Vitamin D Supplements Review (which includes our Top Picks for vitamin D supplements).
How Much Tea Is Safe? -- (11/14/2017) Green and black teas contain fluoride, which helps build teeth and bones, but excessive intake of teas can cause teeth and bones to become brittle ("fluorosis"). How many cups of tea are safe? Find out now based on recent tests of fluoride in green, black, and herbal teas in the "Concerns and Cautions" section of the Green Tea Review >>
Curcumin for Memory -- (11/10/2017) There is mixed evidence on whether or not curcumin helps improve memory. A recently published study found that a proprietary formula helped, although, last year, a study using a different formula failed to help. In both cases, certain side effects were more common among those taking curcumin than placebo. Get the details in the "What It Does" section of the Turmeric & Curcumin Supplements Review >> [Also see our Top Picks for dark chocolate bars in the Review.]
Curcumin Drug Interaction -- (11/9/2017) Curcumin, from turmeric, can affect many prescription drugs. The most recent report involves an immunosuppressive drug also used in cancer treatment. For details about this interaction and other drug interactions of curcumin and turmeric, see the "Concerns and Cautions" section of the Turmeric & Curcumin Supplements Review >>
Dark Chocolate for Memory -- (11/8/2017) Short-term studies suggest that large doses of cocoa flavanols improve certain aspects of memory and cognition. A new study suggests that long-term habitual intake of dark chocolate, which is rich in flavanols, can also help. For more information, see the "What It Does" section of the Dark Chocolate and Cocoa Review >> [Also see our Top Picks for dark chocolate bars in the Review.]
Melatonin Improves Sleep in Children with Autism -- (11/7/2017) 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.]
Cereal Fiber Reduces Risk of Death from Colorectal Cancer -- (11/4/2017) Higher intakes of dietary fiber are associated with a lower risk of colorectal cancer. A new study suggests that higher intakes of fiber from cereal may reduce the risk of dying among those who have the disease. How much is needed for a benefit? Get the details in the "What It Does" section of the Oat Cereals Review >> [Also see our Top Picks for oat cereals in the Review.]
B Vitamins for Memory -- (11/4/2017) Many studies suggest that adequate intake of B vitamins slows age-related declines in memory and cognition. This was recently shown again in a study in England. Find out which B vitamins help, and how much you need, in the "What It Does" section of the B Vitamin Supplements Review >> [Also see our Top Picks for B vitamin supplements in the Review.]

October
Fish Oil for Focus in Kids? -- (10/31/2017) Fish oil supplementation was shown to improve executive functioning in children, according to a study that focused on children with mood disorders. For details, see the "What It Does" section of the Fish Oil and Omega-3 Fatty Acids Supplements Review >> [Also see our Top Picks for fish oil supplements in the Review.]
CoQ10 for Orthostatic Hypotension -- (10/31/2017) CoQ10 may help reduce the fall in blood pressure that occurs in orthostatic hypotension (low blood pressure upon standing) according to a recent report. See the details in the "What It Does" section of the CoQ10 and Ubiquinol Supplements Review >> [Also see our Top Picks for CoQ10 supplements in the Review.]
Best form of B12? -- (10/29/2017) It's important for many older adults and people using medications that reduce stomach acid to take a vitamin B12 supplement. Three different forms of B12 are sold. A recent study suggests that one may be better than another. Get the details in the B12 (cobalamin) section of the B Vitamin Supplements Review >> [Also see our Top Pick for B12 supplements in the Review.]
Denture Adhesive Concern -- (10/24/2017) Copper deficiency can result from continued use of zinc-containing denture adhesives, according to a new report. Get the details in the "Concerns and Cautions" section of the Zinc Supplements Review >>
Vitamin D for Asthma -- (10/24/2017) Taking vitamin D can reduce the number of asthma exacerbations that require corticosteroid treatment, according to a recent study. Get the details in the "What It Does" section of the Vitamin D Supplements Review >> [Also see our Top Picks among vitamin D supplements in the Review.]
Vitamin D Toxicity -- (10/24/2017) Getting too much vitamin D is associated with negative effects. With continued use of enormous doses of vitamin D, toxic effects can occur, as has been reported with the use of a protein supplement containing vitamin D. See the details in the "Concerns and Cautions" section of the Vitamin D Supplements Review >>
Probiotic Reduces Colic -- (10/18/2017) A widely sold probiotic was able to reduce by half the amount of crying in infants with colic, according to a placebo-controlled study. For details, see the "What It Does" section of the Probiotic Supplements Review >>
Reducing Dementia With Magnesium? -- (10/14/2017) In a recently published study, investigators looked to see if taking a magnesium supplement reduces the risk of dementia. See what they found in the "What It Does" section of the Magnesium Supplements Review >>
Fatty Liver and Vitamin D -- (10/14/2017) A recent study showed that it is difficult to raise vitamin D levels in some people who have non-alcoholic fatty liver disease -- a condition affecting 30% of Americans. This is concerning, as there may be benefits to raising low levels of vitamin D in such people. Learn more in the "What It Does" section of the Vitamin D Supplements Review >>
Turmeric (Curcumin) and Cholesterol -- (10/14/2017) Turmeric and curcumin (from turmeric) can help lower levels of LDL "bad" cholesterol and triglycerides, according to a recent review of studies. Certain formulations may be better than others. Get the details in the "What It Does" section of the Turmeric and Curcumin Supplements Review >>
Ginger for Nausea During Chemo? -- (10/11/2017) 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.
Green Tea & Prostate Cancer -- (10/6/2017) A recent study investigated the effects of green tea extract in men with pre-cancerous changes of the prostate. Find out if it helped in the "What It Does" section of the Green Tea Supplements and Drinks Review >>
Caution When Taking Epsom Salt -- (10/3/2017) A case of liver injury was recently reported in a man taking a large daily dose of Epsom salt (magnesium sulfate). Get the details, plus more about safety issues with magnesium supplements in the "Concerns and Cautions" section of the Magnesium Supplements Review >>
Does Lutein Help? -- (10/1/2017) Lutein is an antioxidant that helps protect the retina of the eye and can slow the progression of macular degeneration. But does taking lutein help if you already have normal macular density? Two studies have “looked" at this question (including one published this week) and, you can “see" the answer in the “What It Does" section of Vision Supplements (Lutein & Zeaxanthin) Review >>
Paleo Diet and Iodine -- (10/1/2017) The "Paleo" diet excludes table salt and dairy products, which are sources of iodine. A recent study investigated whether or not this causes iodine deficiency (which is also a concern with a vegan diet). Get the details in the "Iodine" section of the Multivitamin/Multimineral Supplements Review >>

September
Changed VSL#3 Probiotic? -- (9/27/2017) VSL#3 is a popular probiotic, but a new study suggests that the currently marketed product may be somewhat different and not have all the same effects as the earlier product. For details, see the ConsumerTips section of the Probiotic Supplements Review >>
Lowering Cholesterol with Red Yeast Rice and Phytosterols -- (9/27/2017) Red yeast rice and phytosterols help lower cholesterol through different mechanisms. Does combining them help more? See what two studies found in the ConsumerTips section of the Cholesterol-Lowerers Review >>
Magnesium and Dementia -- (9/23/2017) A recent study found an association between magnesium levels in the blood and the risk of developing dementia. See the details in the "What It Does" section of the Magnesium Supplements Review >>
Niacinamide for Alzheimer's Disease? -- (9/19/2017) Niacinamide (a form of niacin) has been promoted as a way to protect against memory loss associated with Alzheimer's disease — a claim based on studies in mice. A recent study put this to the test in people. See the results in the "Niacin" section of the B Vitamin Supplements Review >>
Olive Oil and Prostate Cancer -- (9/10/2017) Another possible benefit of olive oil within a Mediterranean diet is a reduced risk of aggressive prostate cancer, according to a new study. For details about this and other benefits of olive oil, see the updated "What It Does" section of the Extra Virgin Olive Oils Review, which includes our Top Picks among products.
Turmeric for Arthritis? -- (9/6/2017) Curcumin (from turmeric) has shown promise in reducing the pain and inflammation of rheumatoid arthritis in several small studies, including one that was recently published. However, larger studies are needed to prove this benefit. Details are found in the "What It Does" section of the Turmeric and Curcumin Supplements Review (which includes our Top Picks among products).
Lower Cognitive Function in Kids Linked to High Prenatal Folic Acid -- (9/6/2017) Children of mothers who took high amounts of folic acid around the time of pregnancy had lower cognitive and verbal scores when tested at 4 to 5 years of age, according to a new study. Similarly, as we reported last year, pregnant women with higher levels of folate (from folic acid) had offspring with higher rates of autism. While it is important that pregnant women get a moderate amount of folic acid to prevent spinal cord defects, higher amounts should be avoided. See the Folate section of the B Vitamin Supplements Review for details.
Ashwagandha & Thyroid Function -- (9/2/2017) Ashwagandha extract improved thyroid hormone levels in men and women with subclinical hypothyroidism in a new study. See the details in the "What It Does" section of our Ashwagandha Supplements Review -- which includes our Top Pick among ashwagandha supplements.
Extra Virgin Olive Oil Aids Fat Loss -- (9/2/2017) A study among overweight women found that substituting extra virgin olive oil for another plant oil led to greater losses of body fat during dieting. See the details in the "What It Does" section of the Extra Virgin Olive Oils Review -- which includes our Top Picks among extra virgin olive oils.

August
Probiotic for Dandruff? -- (8/30/2017) A probiotic was shown to significantly reduce the signs and symptoms of dandruff in a placebo-controlled, 2-month study. See the "What It Does" section of our Probiotic Supplements Review for details >>
High-Dose B Vitamins & Lung Cancer Risk -- (8/29/2017) A recent study found that taking high doses of vitamins B6 and B12 was associated with an increased risk of lung cancer among men, particulary among those who smoke. For details, see the "ConsumerTips" section of the B Vitamin Supplements Review >>
Does Lithium Prevent Dementia? -- (8/27/2017) A new study found the risk of developing dementia to be significantly lower in areas with higher levels of lithium in the drinking water. This finding is consistent with a study that found low-dose lithium to stabilize patients with Alzheimer's disease. Details about these studies are in the "What It Does" section of the Low-Dose Supplements Review, which includes our Top Picks among low-dose lithium supplements.
High-Dose B Vitamins & Cataract Risk -- (8/26/2017) Taking high doses of B vitamins, including B vitamin complexes, folic acid and B6, was associated with a higher risk of age-related cataracts among middle-aged men and women, according to a new study. For details, see the "ConsumerTips" section of the B Vitamin Supplements Review >>
Curcumin for Cancer? -- (8/23/2017) Curcumin (from turmeric) has shown potentially beneficial biological effects with regard to cancer, although it has not been shown to cause clinical improvements. Nevertheless, a case was recently reported of a woman with myeloma who was stabilized with curcumin treatment. For details, see the "What It Does" section of the Turmeric/Curcumin Review >>
Problem with 60% of Berberine Supplements -- (8/15/2017) Berberine is a popular supplement for glucose control, but a recent study of 15 products in the U.S. found that nine contained only 33% to 89% of claimed amounts of berberine. You can find out which brands were low and which had acceptable amounts, and learn about the clinical evidence for berberine and cautions in the CL Answer about Berberine >>
Magnesium Cream? -- (8/6/2017) Is rubbing a cream into your skin a good way to get magnesium? We reviewed several studies of magnesium creams or sprays, including one just recently published. See what we found in the "What It Does" section of the Magnesium Supplements Review -- which includes our Top Picks among magnesium supplements.
Iron for Restless Legs -- (8/2/2017) Iron supplementation may help to reduce the severity of restless legs syndrome (RLS) symptoms in people who have deficient or low levels of iron, according to guidelines from the American Academy of Neurology. For details, including dosage, see the "What It Does" section of the Iron Supplements Review, which also includes our tests and quality comparisons of products.

July
Fish Oil for Endurance -- (7/29/2017) High-dose fish oil may help to increase exercise endurance, according to a new study, adding to evidence of other beneficial effects of fish oil on muscle mass and strength. For details, see the "What It Does" section of the Fish Oil Supplements Review, which includes our Top Picks among products.
Melatonin Increases Aggression -- (7/29/2017) A study among young men found melatonin to modestly increase aggressive behavior. For more about this and other potential side effects of melatonin see the "Concerns and Cautions" section of the Melatonin Supplements Review (which also includes our Top Picks among products).
How Vitamin B6 May Backfire -- (7/26/2017) Supplementing with high-dose vitamin B6 can sometimes cause the same nerve toxicity associated with deficiency of B6. New research explains why this may happen and suggests how to avoid it. For details, see the "Vitamin B6" section of the B Vitamin Supplements Review >>
Does MSM Help Joints and Muscles? -- (7/23/2017) MSM (methylsulfonylmethane) is commonly in supplements for joint and muscle pain, although the evidence behind it has been limited. Its effectiveness in reducing pain, muscle damage, and oxidative stress was recently evaluated in people running a half-marathon. See the results in the "What It Does" section of the Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, and Boswellia), which includes our Top Picks among products.
Fish Oil for Depression -- (7/19/2017) A number of studies have reported on whether taking fish oil can help with depression. The most recent study found a benefit using an amount and type of fish oil generally in-line with what other studies suggest works best. See the details in the "What It Does" section of the Fish Oil Review. The Review includes our tests, comparisons, and Top Picks for products.
Lutein May Reduce Eye Strain and Headaches -- (7/15/2017) 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.
Fat Fish vs. Lean Fish -- (7/12/2017) If you are trying to control your blood sugar, it turns out that your choice of fish can make a difference. Learn more in the "What It Does" section of the Fish Oil Supplements Review. The review includes our Top Picks among omega-3 supplements.
Vitamin D2 or D3? -- (7/9/2017) Although both the D2 and D3 forms of vitamin D can raise blood levels of vitamin D, a new study showed one to be significantly better than the other — and there are some interesting explanations for this. Learn more in the "What to Consider When Using" section of the Vitamin D Supplements Review, which includes our Top Picks.
Magnesium Lowers Risk of Fracture -- (7/8/2017) Higher intake of magnesium from the diet and supplements was found to significantly reduce the risk of fractures in a study of older men and women. Details are in the "What It Does" section of the Magnesium Supplements Review, which includes our Top Picks among products.
Dark Chocolate & Appetite -- (7/5/2017) A recent study found that women consumed fewer calories after eating dark chocolate than after eating milk or white chocolate. Dark chocolate also resulted in better blood sugar control — an effect noted in other studies of moderate consumption of dark chocolate. Get the details on this and other effects of dark chocolate in the "What It Does" section of the Cocoa and Dark Chocolate Review, which includes our tests and comparisons of popular products.
Extra Protein Enhances Training -- (7/2/2017) Even among untrained, middle-aged men, adding protein supplementation to resistance training leads to greater improvements in lean body mass (i.e., more muscle) than the training alone, according to a new study. Find out how much protein helped in the "What It Does" section of the Protein Supplements Review. The Review includes our test-based, quality ratings and comparisons of popular protein powders and drinks.






 

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