 Even when these were healthy people, and even when the blood tests looked like they were healthy, when they dug a little deeper, the magnesium levels were depleted. So what do we do? 50 to 80% of us are not getting enough magnesium in our diet. It's called a subclinical deficiency. You know, they have two types of deficiencies, and it's kind of an interesting term. They call it a frank deficiency. That's scurvy. If you don't have enough vitamin C, you have scurvy.