VItamin C is a great antioxidant
how much: 75 mg per day
symptoms of deficiency are Fatigue, depression, inflamed gums, skin spots, bad hair, joint pains.
sources citrus fruis, most of the multiviatmins have it,
Antiaging: it helps in collagen synthesis,
Smokers need about 100 mg perday REALLY!!
Antioxidant: traps free radicals
You get less common cold if you regularly take it.