It's no surprise that antioxidants are all the rage nowadays, and for good reason. An antioxidant is defined as "a substance in food that significantly decreases the adverse effects of reactive species, such as reactive oxygen and nitrogen species, on normal physiological function in humans."

In plain English, an antioxidant defends the body against harmful free radicals!

Because of the mass appeal for antioxidants, many companies have marketed various ready-to-drink juices as being "the best source" of antioxidants that money can buy. It is therefore of great interest to the general public to know the antioxidant capacity of the beverages that they consume.

Just how antioxidant-rich are these juices? And how do they compare with fresh-pressed juices?

To help answer this question, a recent study published in the Journal of Agriculture and Food Chemistry compared the antioxidant status of 12 brand name ready-to-drink juices.

However, it should be cautioned that because of the inherent complexity of food matrices, the use of a single antioxidant capacity method (used in many other studies) to determine antioxidant potency is ineffective. This is because antioxidants respond to different reactive species in different tests, which is partially attributed to multiple reaction mechanisms and reaction phases.

Instead, for better accuracy, the current study used 4 separate tests to measure antioxidant potency.