Medically reviewed by Soma Mandal, MD A vitamin D test is a blood test that measures the level of vitamin D (calciferol) in ...

Do you remember Bryan Johnson, the 47-year-old venture capitalist who wants to say as young as possible for as long as ...

Doctors are urging consumers to approach supplement and vitamin sales with caution, as stacking multiple supplements can have ...

New research finds that taking a daily vitamin D supplement may help lower blood pressure, especially for older adults with ...

Think twice before buying your favorite influencer's supplement du jour. Here's how to choose the right longevity products, ...

Vitamin and mineral deficiencies don’t directly cause male ... A biotin deficiency is easy to detect with a quick blood test, ...

Both the spinal fluid and respiratory droplet versions of the mNGS test have received breakthrough device designation from ...

Besides back pain, being deficient in the vitamin may also lead to other symptoms such as tiredness, increased susceptibility to illness, feelings of anxiety and delayed healing of wounds ...

High blood pressure is a rare health issue among teens, but U.S. case numbers are creeping upwards. Now, research published ...

High levels of vitamin C can interfere with multiple kinds of medications and results of certain medical tests such as blood ...

Vitamins and mineral supplements can help address nutritional deficiencies that commonly affect people who have Crohn’s disease. Here's what your doctor may recommend.