n. 1. Two individuals or units regarded as a pair: the mother-daughter dyad.2. Biology One pair of homologous chromosomes resulting from the division of a tetrad during meiosis.yad. n. 1. (Mathematics) maths an operator that is the unspecified product of two vectors. It can operate on a vector to produce either a scalar or vector product. 2. (Chemistry) an atom or group that has a valency of two.
However, there are vastly different opinions on how much protein we actually need. Most official nutrition organizations recommend a fairly modest protein intake. The DRI (Dietary Reference Intake) is 0.8 grams of protein per kilogram of body weight, or 0.36 grams per pound. This amounts to: 1  56 grams per day for the average sedentary man.  46 grams per day for the average sedentary woman.
The review concluded that optimal protein intake for seniors is 1.0 to 1.3 grams per kilogram, or about 0.4 to 0.5 grams of protein per pound of body weight each day. Athletes Athletes require more protein than non-athletes, and the amount of protein needed is based on size and activity level. The Academy of Nutrition and Dietetics reports that endurance athletes need about 0.6 to 0.9 grams of protein per pound, and strength-trained athletes trying to build muscle mass need 0.6 to 0.8 grams of protein per pound of body weight each day.