how much protein do i need in a day vegetarian?
 73 to 78 grams of protein per pound of body weight per day.
1 Babies need about 10 grams a day.2 School-age kids need 19-34 grams a day. 3 Teenage boys need up to 52 grams a day. 4 Teenage girls need 46 grams a day. 5 Adult men need about 56 grams a day. 