When it comes to Vitamins there exist some common principles that the Health Guardian can use as a fundamental bases to define proper nutritional strategy.

• Most tissues need most nutrients.
• Inadequate intakes of most nutrients impair the function of most systems.
• The classical deficiency diseases occur at only the extremes of “inadequacy”.
• The role of nutritional status as a key factor of successful aging is very well recognized.
• Adequate” adult nutrition can be best conceptualized as preventive maintenance.