Preliminary research has found that I-Citrulline, an amino acid found in watermelon juice, may help reduce muscle soreness. Researchers gave a small group of athletes 500 ml of either natural watermelon juice, enriched watermelon juice (extra quantity of I-Citruline) or a placebo drink one hour before exercise. Twenty-four hours later, both watermelon juices helped reduce muscle soreness and heart recovery rate. However, the natural form of watermelon juice is easier for the body to absorb.
Positive Tip: Sore muscles from vigorous exercise? Natural watermelon juice before each workout might help.