vitamin

As a symbol mg

is symbol for magnesium.

As a noun vitamin is

vitamin.

As nouns the difference between health and vitamin

is that health is the state of being free from physical or psychological disease, illness, or malfunction; wellness while vitamin is vitamin.

As nouns the difference between deficiency and vitamin

is that deficiency is (uncountable) inadequacy or incompleteness while vitamin is vitamin.

As nouns the difference between vitamin and pill

is that vitamin is vitamin while pill is a small, usually cylindrical object designed for easy swallowing, usually containing some sort of medication or pill can be the peel or skin or pill can be an inlet on the coast; a small tidal pool or bay.

As a verb pill is

(textiles) of a woven fabric surface, to form small matted balls of fiber or pill can be (label) to peel; to remove the outer layer of hair, skin, or bark.

As nouns the difference between iu and vitamin

is that iu is while vitamin is vitamin.