Is Stouffer's Stouffer's Macaroni & Cheese safe?

Full ingredient label

Enriched macaroni product (semolina, niacin, ferrous sulfate, thiamin mononitrate, riboflavin, folic acid), water, cheddar and american cheeses (milk, cheese culture, salt, enzymes, coloring), skim milk, cream, modified food starch, butter (cream, salt), contains less than 2% of sodium phosphate, salt, lactic acid, natural flavors, sodium alginate, caramel color.