Hi My Son Is Almost 6 Month O Ld An

Hi my son is almost 6 month o ld an was di agnosed with G6PD deficienc at 2 m onths. He is currently on enfamil a. r but I am switching to goats milk and Almond milk, I just need to know if the vanilla flavoured Almond milk is safe for him and what solid food can i start with. Is butter ok?