Write the next sentence in the following story.

How to take protein supplements
Recognize the need for protein supplements.
If you are in need of protein, your body may send you signals. These symptoms can indicate a wide variety of other problems, however, so talk to your doctor before you take any protein supplements.
Some of the signs are : Weakness, especially in your muscles unclear thinking or difficulty concentrating recurrent infections and slow healing sweet cravings loss of hair Choose a supplement. Protein supplements usually come as a powder.