From protein bars, protein pancakes, protein shakes, protein peanut butter, and giant chickens breasts, I was originally planning on writing this posts about the potential risks of a high protein diet. In school we learned that high protein consumption could damage the kidneys and lead to bone disease, health disease, and possibly cancer. But, when I started digging through the research to write this blog post, I was kind of shocked to find out that none of these side effects of high protein intake were really proven.
The research shows that high protein diets can be harmful to the kidneys, but only in people who already have kidney problems (which are usually caused by high blood pressure and diabetes). High protein diets might also increase the amount of calcium we lose in urine, but it hasn’t been found to have an effect on our bones. In fact, more protein can actually prevent bone fractures.
As for heart disease and cancer risk, we should really be focusing more on where our protein comes from. Many protein rich foods, like beef and red meats, are also high in saturated fats. This saturated fat is actually what has been found to increase risk for heart disease and cancer, not the protein. That means, we should focus on eating proteins lower in saturated fat, like lean meats, low fat dairy, and fish.
So now that we have busted some of the myths, here are some benefits of protein for healthy sources:
1. Protein is made up of amino acids, which are the building blocks for cells, muscles, and tissues in the body. Therefore, more protein can help build/preserve muscle mass and repair damaged tissues.
2. Protein tends to be very satiating, which can lead to fewer calories consumed from other foods and weight loss.
3. The jury is still out there on this one, but some research shows that high protein intake can increase your metabolism (that means more calories burned while you sit on the couch!).
How much protein should you eat?
In order to prevent deficiency, you should have 0.35 grams of protein per pound of your body weight, but in reality, most of us can benefit from more than that. I suggest 0.5g-0.75g per pound (I wouldn’t go much higher than 0.90g/lb – there isn’t enough research to know the long term effects anything higher than that). Most of us typically land in this healthy range every day just by eating everyday foods, but like I said before, it is important to focus on those lean, low fat protein sources to meet your daily goals.
And remember, just because protein has the spotlight doesn’t mean you can eliminate carbs and fats – they provide lots of important nutrients we can’t live without!