In what way is a diet that includes antioxidants related to mutation and protein synthesis?

Disappointing. Despite a lot of hope -- and a lot of bogus stuff online -- nobody's been able to show that a diet rich in antioxidants prevents or treats any common illness, slows aging, or slows the normal background mutation rate. This may not be what you, or your teacher, want to hear. But I'm afraid it's the truth. Antioxidants are probably the greatest disappointment in medicine in recent times.