Something to think about The Nitrites are used in such a small amount.
example Lee's seasoning recommends a 1/4 teaspoon per 100 lbs.
Sodium Nitrites are used in some foods. I prefer to have it in Home made sausage.
Will it hurt you ? It may effect some people I can't answer that question but has been used for many years in a lot larger amounts. basically it just curing salt.