The extent of a focal tendon abnormality was intrasubstance in none (0%) of 16 patients with full-thickness tears, one (20%) of five patients with bursal surface partial-thickness tears, two (20%) of 10 patients with articular surface partial-thickness tears, and two (15%) of 13 patients with tendons without tear.
1 Adequate Intake (AI), where no RDA has been established, but the amount established is somewhat less firmly believed to be adequate for everyone in the demographic group.  Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A) that can be harmful in large amounts.
RDA and DRI: What they stand for and why they're important. cseper By cseper cleveland.com. on July 14, 2008 at 8:21 AM, updated July 15, 2008 at 8:23 AM. Print. View/Post Comments. RDA: Stands for recommended dietary allowance and is the basis for the percent daily values you see on nutrition and supplement labels. A group that became the Food and Nutrition Board established the values during World War II.