Vitamin B12 deficiency can affect red blood cells, metabolism, and nerve health. Learn to recognize common deficiency ...

Your body is constantly sending signals, yet many of us dismiss the subtle warnings that something might be off. Vitamin B12 ...

Learn the best vitamin D-rich foods, how much they provide, and why combining food, sunlight, and supplements is often the most effective approach for optimal health.

Vitamin B12 is an essential nutrient that must be obtained through diet or a supplement. Having too little B12 can cause fatigue, anemia, and neurological problems. Vitamin deficiencies may sometimes ...

Research has studied the link between vitamin B12 deficiency and cognitive decline in older people. More research is needed on that front, but the nutrient is essential for producing energy. Vitamin D ...

Nearly a quarter of Americans are estimated to have a deficiency in vitamin D. Are you one of them? A 2022 study of National Health and Nutrition Examination Surveys (NHANES) data estimated that about ...

Many experience fatigue and cognitive issues despite normal Vitamin B12 levels due to functional deficiency, where the body can't utilize the nutrient effectively. Standard tests often miss this, as ...

When you don't get enough vitamin A in your diet, you may be at risk of having a vitamin A deficiency. Over time, this can lead to several health concerns, including vision problems, weakened immunity ...