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.
Each gram of protein has four calories, so for a 2,000 calorie per day diet, that equals 75 to 100 grams of protein per day. A person who eats 1,500 calories per day would need about 55 to 75 grams per day. That's quite a spread, but you can narrow it down by basing your protein needs on your body weight. The average adult needs about 0.8 grams of protein per kilogram of bodyweight per day. One kilogram equals 2.2 pounds, so a person who weighs 165 pounds (75kg) would need about 60 grams of protein per day. A few weight loss diets suggest upping your intake of protein, but that may not really be necessary.