Certain types of polyphenol antioxidants, like those found in pomegranate juice, may help increase nitric oxide bioavailability by protecting it from breaking down in the body. Nitric oxide helps your body get the oxygen and nutrients it needs during exercise.
Pomegranate juice is known for its polyphenol antioxidants. An in vitro study at UCLA found that each serving has more antioxidant capacity, on average, than red wine and green tea. Every athlete should stock the fridge with pomegranate juice.
Drink pomegranate juice all the time
A 2011 study conducted at UT at Austin on 17 athletic men found preliminary but promising results for muscle strength. Those who drank two servings (about 8oz each) of pomegranate juice per day for about two weeks maintained more of their post-exercise arm strength versus the placebo group. The man followed their normal diet and weight-training routine. On the eighth day, the men completed specific strength exercises at maximum capacity, and drank an additional saving of pomegranate juice immediately after exercising. A similar trend was seen in the knee though it did not reach statistical significance.
In a preliminary 2014 UT study on 45 recreationally active young men, the post-exercise arm and leg strength was significantly higher in men drinking 8oz of pomegranate juice daily compared to the placebo group.
On day four of the eight-day trial, they completed a defined exercise regimen, and isometric muscle strength in the arm and leg was measured over the following four days.
Although the research reported is promising, additional clinical research is needed to establish causation and the potential impact of pomegranate polyphenols on exercise.
Source: Magazine Shape January-February 2017 USA