The most common deficiencies are vitamin D, iron, magnesium, vitamin B12, and vitamin B9. Maybe $200-$300 to get them checked without insurance. I think most pe

The most common deficiencies are vitamin D, iron, magnesium, vitamin B12, and vitamin B9. Maybe $200-$300 to get them checked without insurance. I think most people shouldn't be concerned about supplements except vitamin D and iron. Just eat a varied diet.