Quick answer Vitamin E is a fat-soluble vitamin that works as an antioxidant, protecting cells from damage, and it supports immune function and blood vessel health. True deficiency is very rare in healthy people: it is almost always linked to diseases in which fat is not properly digested or absorbed, such as Crohn disease, cystic…
Quick answer Vitamin C is a water-soluble vitamin the body needs for collagen production, wound healing, and immune function, and it acts as an antioxidant. True deficiency causes scurvy, but it is rare in developed countries: symptoms appear only when intake falls below about 10 mg per day for many weeks, which is far below…
Quick answer Omega-3 fatty acids are essential fats that the body cannot make, and they come in three main forms: ALA from plant foods, and EPA and DHA from fish and algae. Omega-3s support the heart, brain, eyes, and cell membranes, and the strongest dietary evidence favors eating fish over taking pills. True omega-3 deficiency…
Quick answer Vitamin D is a fat-soluble vitamin that helps the body absorb calcium and keep bones, muscles, and immunity working. The deficiency stories with the strongest evidence are bone diseases: rickets in children, where bones become soft and deformed, and osteomalacia in adults, which causes bone pain and muscle weakness. Vitamin D is unusual…
Quick answer Folate, also called vitamin B9, is a B vitamin the body needs to make red blood cells and DNA. The two well-documented deficiency stories are megaloblastic anemia, where red blood cells are large and immature, and neural tube defects in pregnancy, which is why folic acid is recommended before and during early pregnancy….
Quick answer Vitamin A is a fat-soluble vitamin that the body needs for vision, immune function, and healthy skin, and it comes in two forms: preformed vitamin A (retinol) from animal foods and provitamin A carotenoids like beta-carotene from plant foods. The one deficiency story with rock-solid evidence is the eyes: severe vitamin A deficiency…
Quick answer The short answer is that two nutrients stand clearly above the rest for feet: vitamin B12 and iron. B12 deficiency damages nerves, and the feet, sitting at the end of the body’s longest nerves, are usually the first place it shows, with tingling, numbness, or burning. Iron deficiency is the best-documented nutrient driver…
Quick answer Your feet are built from nerves, blood vessels, joints, muscles, and skin, and because they carry your whole weight and sit at the far end of the body’s longest nerves, they are often the first place certain health changes show up. The honest version of foot reading is that most changes are local…
Quick answer Restless legs syndrome (RLS) is a common condition that causes an uncomfortable urge to move the legs, usually in the evening or at night, often with crawling, creeping, or aching feelings that ease when you move. The most important nutrient story is real and well documented: iron deficiency, even at levels still inside…
Quick answer Swollen feet and ankles (edema) happen when fluid builds up in the tissues, and the everyday causes are common: long standing or sitting, hot weather, too much salt, pregnancy, and being overweight. Leg veins that struggle to return blood (chronic venous insufficiency) are another common driver. The version that matters: swelling that is…