"...[S]oil depletion and years of overfertilizing our soils have resulted in nutrient-depleted food. That's why I recommend a good multivitamin-mineral source for everyone.
Many people need more than the current Recommnded Daily Allowances (RDAs) for optimal health. Here's why: The RDAs for vitamins were developed to keep large populations from getting gross deficiency diseases. RDAs were developed only after large-scale refining of flour became the norm, and deficiency diseases began to affect entire groups of people who no longer ate whole foods. The RDAs do not address individual biological variation. For one person, 80 mg of vitamin C might be optimal; for another, 1,000 mg perday works better. Our nutritional needs are as individual as our fingerprints."
-Christiane Northrup, M.D.