February 02, 2012: Lack of Sunlight May Raise Stroke Risk
Study found those who got less exposure were more likely to suffer an attack

January 17, 2012: Vitamin D Won't Help Most COPD Patients: Study
However, those with severe vitamin deficiency may see a benefit, researchers say

January 10, 2012: Study Challenges Potassium Guidelines for Heart Attack Patients
Current recommendations for the mineral may be too high, researchers say

January 10, 2012: Too Much Vitamin D Could Be Harmful to Heart
Higher-than-normal levels can increase cardiac inflammation, study found

December 28, 2011: Vitamins, Omega-3s May Keep Brain From Shrinking: Study
Healthy seniors with higher levels of certain nutrients did better on thinking tests, researchers say

December 15, 2011: Low Iron Levels May Increase Blood Clot Risk
Researchers say next step is determining if treating iron deficiency wards off dangerous clots

December 06, 2011: Vitamin D Levels Tied to Diabetes Risk in Obese Kids
Low levels were associated with more insulin resistance, study found

November 15, 2011: Low Vitamin D May Increase Stroke, Heart Attack Risk in Women
Vitamin has anti-inflammatory effects on the arteries, researchers note

November 15, 2011: Heart Patients Using Vitamins May Take Meds Improperly
Many unaware that dietary supplements reduce effectiveness of warfarin, study shows

November 15, 2011: No Benefit From Niacin for Heart Patients in Study
The vitamin may increase stroke risk, researchers find

November 14, 2011: Sugar-Sweetened Drinks May Pose Heart Risks to Women, Study Suggests
Problems can emerge even if no weight gain is evident, researcher says

November 07, 2011: Vitamin D, Interferon Alpha Vaccine Show Promise Against Lupus
Experimental treatments altered immune response in small, preliminary studies

November 04, 2011: Vitamin D Lacking in Many Spine Surgery Patients
Younger patients in study more likely to have low levels of bone-building vitamin

October 24, 2011: Study Casts Doubt on Hot Dogs' Link to Colon Cancer
U.S. mandate to cut wieners' nitrite levels hasn't led to lowered incidence of the disease

October 12, 2011: Research Sheds Light on Vitamin D's Role in Immunity
It may be key in protecting people from infections like tuberculosis, study shows

October 11, 2011: Extra Vitamin E May Be Associated With Prostate Cancer
Increase in risk is small, but finding suggests that supplement use can be harmful, researchers say

October 11, 2011: Folic Acid in Pregnancy May Prevent Kids' Language Delays
Moms started supplements before conception in Norwegian study

October 10, 2011: Dietary Supplements May Harm Older Women: Study
Iron, vitamin B6 and others might increase the risk of death, researchers say

October 06, 2011: TV Ads Whet Kids' Appetite for Junk Food
But study finds parents can counteract the influence by encouraging healthy choices

October 03, 2011: Mom's Healthy Diet Might Cut Birth Defect Risk
Prevention involves overall eating, not just supplements, experts say

September 30, 2011: Oral Steroids Linked to Vitamin D Deficiency
Children taking the drugs are at high risk for low levels of the nutrient, study shows

September 29, 2011: Does Your Picky Eater Have a 'Feeding Disorder'?
It's normal for kids to resist new foods, but rejecting entire food groups may signal a problem

September 26, 2011: Could Too Little Vitamin B-12 Shrink the Aging Brain?
Deficiency may affect thinking skills, but not enough evidence to advise supplements, experts say

September 23, 2011: Many Black Men in Cold Climates Lack Vitamin D
Too little of it raises risk of prostate cancer, diabetes, rheumatoid arthritis, and other diseases, study says

August 15, 2011: Vitamin D Levels Linked to Certain Skin Cancers, Study Finds
But link doesn't mean vitamin caused the cancer, researchers say

August 05, 2011: Smokers Mistakenly Believe Vitamins Protect Them From Cancer
Taking multivitamins may encourage some to smoke more because they're less worried about the harmful effects of cigarettes

August 02, 2011: Larger Dose of Zinc Lozenges May Shorten Colds
Taking more than 75 mg a day significantly reduced length of virus, study says

July 11, 2011: Psoriatic Arthritis Patients Seem to Lack Enough Vitamin D
However, blood levels of the vitamin don't affect disease activity, researchers say

June 29, 2011: Health Tip: Does Your Child Have Rickets?
Signs of vitamin or mineral deficiency

June 28, 2011: Low-Income Families Often Miss Out on Proper Nutrition
Regular mealtimes, particularly breakfast, help promote healthier diets, researchers say

June 28, 2011: Vitamin D, Calcium Combo May Halve Melanoma Risk in Some Women
Supplements only benefited those who had had another form of skin cancer, study found

June 10, 2011: Study May Dispel Worries About High Levels of Folic Acid
Even if vitamin B12 levels are low, expert says, folate won't exacerbate problems

June 08, 2011: New Guidelines Put Focus on Vitamin D Deficiency
Endocrine Society recommends routine screening for people considered at high risk

May 27, 2011: Weight Loss in Heavy, Obese Women Boosts Vitamin D Levels
Deficiency may explain link between obesity and chronic disease, expert says

May 26, 2011: Trial Stopped After Niacin Brings No Benefit to Heart Patients
NIH terminated study 18 months early, citing no drop in heart attacks, strokes for users

May 25, 2011: With Calcium, More May Not Be Better
Getting enough for bone health is crucial, but too much doesn't help, researchers say

May 24, 2011: MS in Blacks Linked to Low Vitamin D
Climate and geography may play a role in low levels, study suggests

May 20, 2011: Study Suggests Supplement May Protect Against Preeclampsia
Others warn of possible side effects and urge more research before pregnant women try it

May 17, 2011: Selenium Supplements Might Give Modest Benefit Against Cholesterol
But researchers still don't recommend taking the mineral

May 10, 2011: Vitamin D May Prevent Serious Respiratory Disease in Newborns
Supplements can cut risk of RSV, life-threatening complications, researchers say

May 05, 2011: Obese Teens Lack Vitamin D, Study Finds
Whether raising levels would mitigate risks of being overweight remains unclear

April 29, 2011: Low Vitamin D Levels Linked to More Aggressive Breast Cancers
Study supports notion that maintaining healthy levels of the nutrient is key to patient outcomes

April 29, 2011: Low Vitamin D Levels Tied to Obesity in Kids
Fat accumulates as concentrations of the nutrient fall, and these changes differ by race, study finds

April 29, 2011: Americans May Not Consume Enough Calcium: Study
Levels were insufficient for daily needs, researchers find

April 26, 2011: Vitamin E, Diabetes Drug May Not Ease Obesity-Linked Liver Trouble in Kids
Fatty liver disease affects 1 in 20 U.S. children, and can have serious consequences, study authors say

April 13, 2011: Use of Dietary Supplements Keeps Climbing: CDC
Multivitamins most popular, but experts question whether they're needed

March 30, 2011: Most Americans Seem to Have Healthy Levels of Vitamin D
Government study finds 8 percent deficient in needed nutrient

March 22, 2011: Poor Diet Linked to Early Signs of Heart Risks in Obese Kids
Lack of healthy food in youth seems to cause inflammation, insulin resistance, study finds

March 14, 2011: Study: Lack of Vitamin D May Precede Onset of Parkinson's
But levels of the vitamin don't decline as disease progresses, researchers add

March 14, 2011: Diets Rich in Vitamin B May Help Prevent PMS, Study Finds
Foods with thiamine, riboflavin had positive effects; vitamin supplements did not