Since I've had my goats I have always kept out baking soda and loose minerals(sweetlix) for them. A couple of months ago someone told me I should put a protein block out. I bought a 50lb tub at the end of July (by the same company as sweetlix). It was a protein/mineral block. At first they never touched it, then all of a sudden the other day I noticed it was completely empty. I only have 6 goats in the field with it. Is this normal? Have my goats been that deficient? Are they going to get sick? I was wondering if I should by another. It cost 25.99. They still eat the loose mineral too. They have free range on about 1 acre and I rotate as needed, and I feed purina grain. Any thoughts on this? I heard that protein blocks are good for muscling is that true, any other purposes?