Of all the nutrients you need in order to achieve your fitness goals, protein is one of the most important. There are many foods high in protein - meats, eggs, and nuts are a few classic examples. But for people with ambitious fitness goals it's difficult to take in enough protein from food sources alone. You can only eat so much meat or eggs in a day, meal after meal. Furthermore, if you restrain yourself to these food groups, you'll probably end up struggling to find enough room in your stomach to absorb the desired amount of protein.
If you're after serious mass and solid weight gain, complementing your healthy diet with a protein supplement is the key. Protein supplements are most often found in powder form. They are added to a liquid in order to create protein shakes and drinks. By choosing a protein powder supplement, you'll be able to get a significant number of grams of protein without going to extremes on volume, keeping your stomach toned and hitting your protein goals easily.