Lower protein amounts may actually be beneficial for many people. I don't recommend a complete vegetarian diet — our bodies need some animal protein (never exceed more then 25% animal products in your diet as this will increase your risk of cancer significantly). It is likely that many of us are consuming too much protein for optimal health and disease prevention.
According to Dr. Ron Rosedale, too much protein can increase your risk of cancer. High quality protein powders, such as NanoPro (available in our office and online under the products tab), can be part of a healthy regimen.
Dr. Rosedale believes that when you consistently consume protein in levels higher than one gram of protein per kilogram of LEAN body mass (or about half a gram of protein per pound of lean body mass) you can activate the mTOR pathway which can potentially increase your risk of cancer.
To determine your lean body mass: find out your percent body fat (various methods) and subtract from 100. For Example, if you are 20 percent body fat you would have 80 percent lean body mass. Multiply that number times your current weight to get lean body mass. For most people this guideline means restricting protein intake to anywhere from 35 to 75 grams. Pregnant women and those working out extensively need about 25 percent more protein .