Cracks in mouth corners, tingling hands or spoon-shaped nails may signal nutrient gaps. Fatigue and slow-healing wounds often stem from deficiencies in vitamins and minerals. Poor diet, absorption ...

Your hair might be trying to tell you something important about your nutritional status, but you’re probably dismissing the signals as normal aging or styling damage. Changes in hair texture, ...

Plus, how to get more of the vitamin.

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 ...

Medically reviewed by Jamie Johnson, RDN Key Takeaways Nutrient deficiencies develop when someone isn't getting enough of a certain nutrient, like a vitamin or mineral. Deficiencies cause 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 ...

Certain nutrient deficiencies, including vitamin B12, vitamin D, and magnesium deficiency, may contribute to or worsen sciatic nerve pain. Healthcare professionals may also refer to sciatic nerve pain ...

Plus, the best ways to supplement your body if you find out you're deficient.