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.

Available options:
1). For instance, some physicians suggest that you stop taking supplements before 30 to 40 days after an injury. However, if you are noticing any symptoms in other body parts such as your bones and muscles, your doctor may recommend that you begin a lower gi diet, such as whole grains, fruits, vegetables, or protein..
2). Protein supplements may be taken orally or in supplement form. Some supplements will even eliminate certain vitamins and minerals..
3). Be especially wary of powder supplements that contain low levels of protein. There is a good chance that these drinks will cause your body to dump out all of the protein needed, which is why they are often sold as protein drinks..
4). 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... The answer should be
4).