The answer is c: weight gain.
Explanation for each option:
a. Weight loss: While protein supplements can help with muscle building and may contribute to weight loss in the context of a calorie-controlled diet and exercise, they are not directly associated with weight loss on their own. Therefore, this is not the most likely outcome.
b. Increased sleep quality: There is no strong evidence to suggest that protein supplements directly improve sleep quality. Other factors such as sleep hygiene, stress levels, and overall diet play a more significant role in sleep quality.
c. Weight gain: Protein supplements provide additional calories and nutrients that can contribute to weight gain, especially if they are consumed in excess of one's daily caloric needs. This is particularly true for individuals looking to build muscle mass, as they often consume protein supplements to support muscle growth.
d. Increased appetite: Protein is known to have a satiating effect, meaning it can help you feel fuller for longer. Therefore, protein supplements are more likely to decrease appetite rather than increase it.
e. Decreased pain: While protein is essential for muscle repair and recovery, there is no direct evidence to suggest that protein supplements specifically decrease pain. Pain management typically involves a combination of factors including rest, medication, and physical therapy.
Summary:
The most likely outcome when adding protein supplements to one's diet is weight gain, especially if the supplements are consumed in addition to one's regular caloric intake.