I have always kept sweetlix sheep and goat mineral blocks, and salt blocks in the pen. Usually it takes two pygmy goats and two Shetland sheep (all wethers) months to eat a sweetlix block, and they have had the same 50 lb salt block for 3 years and barely touched it. All of a sudden, they are eating a sweetlix block a week, and they have eaten maybe a third of the salt block in the last month. Is there something wrong? Over the summer, I was feeding them grass from the field, due to a hay shortage, and also a yogurt container a day of alfalfa pellets, and a 1/2 cup or so of corn and maybe a cup of oats to share a day. Now, I have hay, and they get several flakes a day, plus still a little corn and oats, and some sweet pellets that have minerals in them for sheep and goats. Why should they need so much of the minerals?