Along with the free-choice mineral, you can also supplement some kelp into their diet. ( I don’t mix it into the mineral) It is full of vitamins and minerals that helps support the immune system and more. SUPER nutritious and natural which makes it easier to absorb. My goats LOVE it. You can get some at Jeffer’s or somewhere else. I feed kelp and brewer’s yeast (a nutritional yeast) to my goats daily. Hope this helps!