7 grams a serving is plenty of protein, as you've suggested. Recommended daily protein intake depends upon a person's height and gender, as well as a few other

7 grams a serving is plenty of protein, as you've suggested. Recommended daily protein intake depends upon a person's height and gender, as well as a few other factors that tend to have small effects. For most adults, the theoretically ideal amount will fall somewhere around 40 to 50g of protein per day, with less for shorter women and more for taller men. Getting less than this can cause severe problems due to amino acid deficiencies (particularly when you always consume the same general protein source and it doesn't contain significant quantities of one or more of the amino acids you don't produce on your own), as well as muscular atrophy (exacerbated rather than improved by exercise, as an insufficient protein intake will prevent the microtears in your muscles from healing properly). Getting significantly more than this increases stress on your kidneys (although it has not been shown to solely lead to kidney failure) due to the larger quantities of nitrogen present in protein than other forms of food.