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.
I learned about the EXA TEST in 2014. It tests intracellular mineral electrolyte levels and is considered the gold standard for magnesium testing. It gives you a true and accurate picture of your magnesium levels because the magnesium is measured in your cells where 99% of your magnesium stores are.