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.
The Recommended Dietary Allowance (RDA) is 2.4 micrograms per day for adults and adolescents aged 14 years and older. Because 10%-30% of older people do not absorb food-bound vitamin B12 efficiently, those over 50 years of age should meet the RDA by eating foods fortified with B12 or by taking a vitamin B12 supplement.