Iron
Iron (periodic table symbol: Fe26) in the form of iron oxide gives Mars its characteristic red color. Iron can be extracted from iron oxide by smelting or may be found as meteoric iron. Iron is a basic constituent of a very wide variety of structures and machines.
What about turkey? I'm asunimsg yes given that chicken is one of the preferred proteins and Tim does mention turkey bacon favorably in the SCD chapters. I'm a big fan of Shelton's Turkey Italian Sausage and Shelton's ground turkey. A good quality product and the sausage is basically turkey meat, fat and spices (no fillers) and the casings are beef-based.