Vitamin E deficiency is rare in healthy adults — almost all cases stem from fat malabsorption disorders or rare genetic conditions affecting vitamin E transport. Severe deficiency causes progressive neurological damage including ataxia and peripheral neuropathy. Premature infants are also vulnerable due to limited stores at birth.
Common symptoms
Loss of balance and coordination (ataxia)
Loss of position and vibration sense (proprioceptive loss)
Muscle weakness
Loss of deep tendon reflexes (areflexia)
Numbness or tingling in hands and feet (peripheral neuropathy)
Hemolytic anemia (red blood cells more susceptible to oxidative damage)
Difficulty walking, especially in the dark
Slurred speech (dysarthria) in advanced cases
At-risk groups
People with fat malabsorption disorders — cystic fibrosis, cholestatic liver disease, short-bowel syndrome
People with abetalipoproteinemia (rare genetic disorder of fat metabolism)
People with ataxia with vitamin E deficiency (AVED — TTPA gene mutation)
Premature or low birth weight infants
People who've had extensive intestinal surgery
People with chronic pancreatic insufficiency
Note: vitamin E deficiency from inadequate diet alone is essentially unheard of
When to see a doctorProgressive ataxia (balance problems, clumsiness), loss of vibration sense, or muscle weakness — especially in a young person or someone with known fat malabsorption — warrants neurological evaluation including serum alpha-tocopherol testing. Early treatment with high-dose vitamin E can halt progression and partially reverse symptoms in genetic forms.