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When can the effects of a vitamin deficiency be reversed?
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vitamin
Vitamin E in gel-cap form.
The effects of a vitamin deficiency can generally be reversed by restoring the necessary vitamin to the diet, provided that the deficiency has not caused permanent damage to the body's structures.123
While many clinical and biochemical symptoms—such as those seen in scurvy—can be cured through the administration of the missing vitamin, reversal is not always possible. If a deficiency leads to damage in nonregenerative tissues, the resulting impairment is often irreversible. Specific examples of such permanent damage include:234
- Nerve tissue: Damage to the nervous system may not be restored by dietary supplementation.34
- Cornea: Structural damage to the eye's cornea can be permanent.34
- Calcified bone: Irreversible changes can occur in bone structures.34
Because the severity of a deficiency disease depends on the degree of deprivation, early intervention is critical to preventing these lasting health consequences.34