Vitamins A, E, D and K are usually measured in I.U.'s. The Recommended Daily Dietary Allowance was started in the 1940's to safeguard the public's health. The R.D.A.'s set at the time were estimates of the nutritional needs of adults and children. These nutrients must appear on nutrition labels. The other nutrients may appear.
Information is provided for educational purposes only.
It is not intended as diagnosis or recommendation for treatment of disease. Please consult your physician for medical advice.