A NORMAL, HEALTHY testosterone level can fall into a wide range. Healthy levels are typically between 264 nanograms per ...

Are you getting the recommended level of vitamin B12 in your diet? Even if the answer is yes, you shouldn’t necessarily pat yourself on the back — it might not be enough. Healthy older people whose ...

Study challenges accepted vitamin B12 levels, revealing hidden neurological risks even within 'normal' range. Study: Vitamin B12 Levels Association with Functional and Structural Biomarkers of ...

“Normal” levels of vitamin B12 may not be enough to ward off dementia, new research finds. Researchers at the University of California San Francisco studied 231 healthy older adults (averaging ...

Slightly elevated blood glucose within a range of what is generally considered “normal” may be associated with increased risk ...