Our main purpose for goats is for the milk and I was wondering if it's OK to let them graze, or should they eat only a particular diet so the milk tastes good? There is a lot of milk weed around here and I heard that it was bad for them. Should I then refrain from letting them graze? Also, we were considering planting a "goat" garden. Does anyone do this? I've read that it will save a whole lot on feed costs, but I always worry that they won't get enough nutrition. Thank you for your time!