Vitamins & Minerals: Complete Guide: Essential Micronutrients Your Body Needs
Evidence-based guide to vitamins & minerals: complete guide backed by 20+ peer-reviewed studies analyzed by Gram Research. Learn what the science says.
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All content tagged with "supplements"
Probiotics and Turmeric Together Don't Work Better for Blood Sugar
Researchers tested whether probiotics (healthy bacteria) and curcumin (a compound from turmeric) could help control blood sugar and reduce cell damage in rats …
Read MoreVitamin K2 May Help Prevent Bone Loss After Menopause
Researchers studied how vitamin K2, calcium, and vitamin D3 affect bone health in rats that had their ovaries removed (a model for menopause in humans). They …
Read MoreDo Probiotic Supplements Really Improve Your Gut Health?
Researchers looked at 47 studies involving over 1,000 healthy people to see if probiotic supplements (the "good bacteria" pills many people take) actually make …
Read MoreB Vitamins May Help Lupus Patients—But Only If They're Not Overweight
Scientists studied whether taking folic acid and vitamin B12 supplements could help women with lupus by changing how their genes work in fat tissue. They gave …
Read MoreHow Natural Health Product Companies Help Track Side Effects
Researchers looked at how companies that make natural health products (like vitamins, herbs, and supplements) help monitor safety and side effects. They …
Read MoreCan Gut Bacteria Pills Help Your Brain? What Science Found
Scientists combined results from multiple studies to see if probiotic supplements (the "good bacteria" pills) could boost a brain chemical called BDNF that …
Read MoreToo Much Folic Acid? Why Balance With B12 Matters for Your Brain
Scientists have discovered that while adding folic acid to foods helps prevent birth defects, getting too much of it—especially from supplements—might actually …
Read MoreTurmeric Spice May Speed Up Antibiotic-Resistant Bacteria
Researchers discovered that curcumin, the yellow compound in turmeric found in supplements and health drinks, might accidentally help antibiotic-resistant …
Read MoreFish Oil Supplements Don't Help MS Symptoms, New Study Shows
Researchers tested whether omega-3 fish oil supplements could help people with multiple sclerosis (MS) feel less tired, move more easily, and reduce …
Read MoreCan Cocoa Extract Help Fight Aging Inflammation?
Researchers studied whether a cocoa supplement could reduce inflammation in older adults. Over 2 years, nearly 600 people aged 60 and up took either a cocoa …
Read MoreWhat Germans Really Think About Vitamins and Supplements
A new survey of over 1,000 German adults reveals that three out of four people take vitamins or mineral supplements, with magnesium and vitamin D being the …
Read MoreVitamin D Helps Older South Asian Women Stay Strong
Researchers studied 120 older South Asian women in England to see if vitamin D affects muscle strength and ability to move around. They found that nearly half …
Read MoreHow One Man Used Hormone Tests to Fix Low Testosterone Safely
A 47-year-old man worked with a doctor to boost his low testosterone using personalized supplements based on hormone testing. Instead of guessing which …
Read MoreDoes Cocoa Extract Change Heart-Health Chemicals in Your Blood?
Researchers wanted to know if eating cocoa extract supplements could change two important chemicals in your blood called TMAO and choline. These chemicals are …
Read MoreWhy Fish Oil and Vegetable Oil Need Different Rules
European food regulators treat all oils the same way when making rules, but new research shows they shouldn't. Scientists found that people eat about 50 times …
Read MoreHigh-Methionine Diet: Good for Liver, Bad for Kidneys in Diabetes
Researchers tested whether a diet high in methionine (an amino acid found in protein) could help diabetic rats. They found something surprising: the diet …
Read MoreWhy Kids With Gut Disease Try Alternative Treatments
Researchers in Switzerland studied 111 children and teens with inflammatory bowel disease (IBD) to understand why many try complementary and alternative …
Read MoreCan Vitamins and Minerals Help Reduce Anxiety? New Research Suggests Yes
Scientists wanted to understand if taking certain vitamins and minerals could actually help reduce anxiety. They studied genetic information from nearly …
Read MoreNatural Supplements May Help Women with PCOS Balance Hormones
Researchers reviewed 78 studies about using natural supplements to help women with PCOS (a common hormone condition). They found that certain supplements like …
Read MoreDoes Vitamin D Really Help Build Muscle? What We Need to Know
Researchers are raising important questions about whether studies linking vitamin D to muscle strength actually apply to everyone. While many studies suggest …
Read MoreCan Vitamins and Supplements Help Your Eyes Stay Healthy?
Researchers reviewed what we know about how nutrition and dietary supplements affect two common eye problems: glaucoma (increased pressure in the eye) and dry …
Read MoreCan Vitamin D Help Kids With Type 1 Diabetes?
Researchers looked at multiple studies to see if taking vitamin D supplements helps children with type 1 diabetes. Type 1 diabetes is a condition where the …
Read MoreCan Vitamin D Help Kids Fight Off Colds and Flu?
Researchers looked at multiple studies to see if vitamin D helps prevent or treat respiratory infections like colds and flu in children. By combining results …
Read MoreNew Supplement Combo May Help Protect Hearts in Type 2 Diabetes
Researchers tested whether three natural supplements together could help protect the hearts of rats with type 2 diabetes. The supplements—acetyl-L-carnitine, …
Read MoreWhy Spermidine Works Differently at Different Amounts
Scientists studied a natural substance called spermidine to understand why it seems to help some people but hurt cancer cells in lab tests. They found that the …
Read MoreVitamin D May Help Your Muscles, Heart, and Blood Sugar Stay Healthy
Top vitamin D experts met to discuss how this important vitamin affects our health. They found that vitamin D might help keep our muscles strong as we age, …
Read MoreHigher Vitamin D Levels May Help Prevent Frailty in Older Adults
A large review of 41 studies involving over 500,000 older adults found that higher vitamin D levels are linked to lower risk of frailty. People with the …
Read MoreVitamins A and D May Help Shrink Uterine Fibroids, Study Finds
A large review of 31 studies involving over 55,000 women found that certain vitamins might help with uterine fibroids - non-cancerous growths in the uterus …
Read MoreMost People with Diabetes in India Don't Get Enough Vitamin D
A large study looked at vitamin D levels in nearly 9,000 people with diabetes in India. They found that 79% of these people had low vitamin D levels, even …
Read MoreDaily Multivitamins Don't Lower Blood Pressure for Most Older Adults
A large study of nearly 9,000 older adults found that taking daily multivitamin supplements didn't prevent high blood pressure or lower blood pressure readings …
Read MoreProbiotics Don't Help Depression or Schizophrenia, New Study Finds
Scientists looked at 13 studies involving 893 people to see if taking probiotics (good bacteria) could help with depression and schizophrenia symptoms. While …
Read MoreVitamins and Supplements May Help Women with Low Egg Count Get Pregnant
Scientists looked at 16 studies involving nearly 3,000 women who had trouble getting pregnant due to low egg reserves. They found that taking certain vitamins …
Read MoreVitamin D May Help Sepsis Patients Survive, But More Research Needed
Scientists looked at five studies involving nearly 43,000 sepsis patients to see if vitamin D supplements could help them survive. Sepsis is a dangerous …
Read MoreHigher Vitamin D Doses Help Premature Babies Grow Better and Stay Healthier
Researchers looked at 21 studies involving over 1,100 premature babies to see if higher doses of vitamin D work better than lower doses. They found that giving …
Read MoreBrain Supplement Creatine May Help Memory in Older Adults
Scientists reviewed six studies involving over 1,500 older adults to see if creatine, a popular muscle supplement, might also help brain function. They found …
Read MoreB Vitamins May Give Your Brain a Small Boost as You Age
Scientists looked at 17 studies involving over 5,000 older adults to see if B vitamins help keep minds sharp. They found that taking B6, B9 (folate), or B12 …
Read MoreHigher Vitamin D Levels May Help You Grow Taller, Study Shows
Scientists used genetic data from over 380,000 people to study whether vitamin D affects how tall we grow. They found that people with higher vitamin D levels …
Read MoreScientists Discuss Vitamin D for Kids with Asthma - What Parents Need to Know
This is a letter from researchers discussing a previous study about vitamin D supplements helping children with asthma. The original study suggested that …
Read MoreGreen Tea Extract Shows Small Benefits for Blood Sugar Control
Scientists looked at 41 studies involving green tea's main ingredient, EGCG, to see if it helps control blood sugar. They found that taking EGCG supplements …
Read MoreDoctors Disagree on Who Should Take Vitamin D Supplements
Researchers looked at 31 medical guidelines from the past decade to see what doctors recommend about vitamin D testing and supplements. They found that medical …
Read MoreProbiotics Don't Help Weight Loss After Bariatric Surgery, Study Finds
A major review of 13 studies involving 693 people who had weight loss surgery found that taking probiotics (beneficial bacteria supplements) didn't help them …
Read MoreVitamin A Supplements Don't Shorten ICU Stays for Kids with Sepsis
Researchers tested whether vitamin A supplements could help children with sepsis (a dangerous blood infection) recover faster. They studied 156 children in the …
Read MoreWhat You Eat Affects Your Hair: Study Shows Best Foods for Healthy Hair
Scientists reviewed 17 studies involving over 61,000 people to understand how diet affects hair health. They found that getting enough vitamin D and iron may …
Read MoreLow Vitamin D Levels May Increase Your Risk of Getting Cataracts
A large study of over 400,000 people in the UK found that those with low vitamin D levels were more likely to develop cataracts - cloudy areas in the eye that …
Read MorePlant Compounds May Help Lower Blood Sugar and Blood Pressure
Scientists reviewed 14 studies to see if phytosterols - natural compounds found in plants that are similar to cholesterol - could help with metabolic syndrome. …
Read MoreNew Ginseng Probiotics May Lower Cholesterol Better Than Regular Ones
Scientists found special bacteria living on ginseng plants that could help lower cholesterol levels. These new probiotics, called Lacticaseibacillus rhamnosus, …
Read MoreVitamin C from Food Doesn't Lower Depression Risk, Large Study Finds
A major study following over 91,000 Korean adults for nearly 6 years found that eating more vitamin C-rich foods doesn't protect against depression. …
Read MoreProbiotics May Spread Antibiotic Resistance: What You Need to Know
Scientists are raising important safety concerns about probiotics - the 'good bacteria' found in yogurt, supplements, and medicines. While probiotics offer …
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