Free range Advantages: It's fun and you get to see the chickens run all around. They also eat healthy stuff (and bugs) in the yard. Disadvantages: The mess (droppings plus scratched up plants/grass/yard) is not contained, and the droppings can end up in places like your driveway.
Magnesium deficiency can be associated with malnutrition, malabsorption, chronic diarrhea, and alcoholism. A Magnesium RBC test can provide an earlier indicator of Magnesium deficiency that a standard Magnesium blood test. When levels are low, the body will pull Magnesium from the cells to keep blood levels normal. In this case a Magnesium blood test may show normal levels while a Magnesium RBC test will give a more accurate result.
If you've recently had a blood test, you might assume it would show a magnesium deficiency. But only 1 percent of magnesium in your body is distributed in your blood, making a simple sample of magnesium from a serum magnesium blood test not very useful.