protein need per day

protein need per day
 0.8 grams of protein perkilogram of body weight, or 0.36 grams per pound . This amounts to  56 grams per day for the average sedentary man. 46 grams per day for the average sedentary woman.

Although this meager amount may be enough to prevent downright deficiency, studies show that it is far from sufficient to ensure optimal health and body composition.
It turns out that the “right” amount of protein for any one individual depends on many factors… including activity levels, age, muscle mass, physique goals and current state of health.
So… what amount of protein is optimal and how do lifestyle factors like weight loss, muscle building and activity levels factor in?
While you do need more protein when muscle building, the total amount needed is less than many people think. A sedentary person needs to eat about 0.8g of protein per kg of body mass each day. Athletes, and people who want to build muscle, need about double this (1.2 – 1.7g of protein/kg of body mass).