The U.S. government recommends 50 grams of protein per day based on a 2,000 calorie diet, an equivalent of 10% of your overall calories. This amount of protein is enough to keep you from looking emaciated, but not nearly enough to help you feel your best. There are multiple problems with the FDA’s one-size-fits-all protein recommendation. Being active or under high amounts of stress will increase your need for protein. Plus, protein fitness is crucial to thyroid function. If you want your thyroid to fuction optimally, examine your diet.