In 1958 the Army added two grades to the NCO ranks. With the addition of these grades, the ranks of the NCO were corporal, sergeant, staff sergeant, sergeant first class, master sergeant and sergeant major.
DRI is the general term for a set of reference values used to plan and assess nutrient intakes of healthy people. These values, which vary by age and gender, include: Recommended Dietary Allowance (RDA): average daily level of intake sufficient to meet the nutrient requirements of nearly all (97%-98%) healthy people.
Men and women protein intake range based on ideal body weight: 1  Minimum Daily Protein Requirement: W.H.O. recommends 0.45 grams of protein per kilogram of ideal body weight per day. 2  Maximum Daily Protein Requirement: US RDA recommends 0.8 grams of protein per kilogram of ideal body weight per day.