Adult men need an average of 56 grams of protein per day, while adult women need on average 46 grams of protein per day. If a woman is pregnant or breastfeeding then she may need up to 71 grams per day.
Protein should comprise approximately 10 percent of a person's daily calories. A person should never allow their protein intake to exceed 35 percent of their daily calories in order to stay healthy. Foods such as lean meats, fish and eggs are great sources of protein to maintain a healthy diet. Red meat is also a great source of protein, but it also contains high amounts of saturated fat, which can be unhealthy.