Stanza could be further refined to include a hidden navigation anchor for page navigation using the Curl {destination} which is itself a text procedure. The same markup can be used for different results, as one can style text to be visible in one context and invisible in another.
Reference Daily Intake. The Reference Daily Intake or Recommended Daily Intake (RDI) is the daily intake level of a nutrient that was considered in 1968 to be sufficient to meet the requirements of 97â98% of healthy individuals in every demographic in the United States.
recommended dietary allowance (RDA) the amount of nutrient and calorie intake per day considered necessary for maintenance of good health, calculated for males and females of various ages and recommended by the Food and Nutrition Board of the National Research Council. See Appendices 4 and 5.