Everyone says the word. Antioxidants. You have probably said it yourself, standing in the kitchen, half sure of what you meant. Somebody asks what it actually does, you say “it fights free radicals,” they nod, and you both quietly know that did not really land. The honest answer to the Juice Plus antioxidants question is a good deal better than that vague nod, and there are three studies sitting behind it.
So let me give you the proper version. The one you could actually explain to another person and stand over.
What a free radical actually is
Your body makes energy all day long. It happens when you breathe and when you digest your dinner, quietly, without you ever noticing. Turning food into energy throws off a bit of waste, and some of that waste comes as free radicals. The Harvard T.H. Chan School of Public Health calls them the inevitable byproducts of turning food into energy.
A free radical is an oxygen molecule that has lost an electron, so it is unstable and goes hunting for a replacement. It grabs one off the nearest cell to steady itself, and that little theft does a small bit of damage. Picture a spark drifting round a room, looking for something to land on. One spark is nothing. Millions of them a day, year after year, and the wear adds up. It is the same slow oxidative wear that scientists tie to how we age.
Antioxidants are the thing that calms the spark. They hand a spare electron to the free radical before it robs one of your cells, so the cell is left alone. Nothing dramatic. Just quiet daily maintenance your body leans on to keep the wear and tear down.
Juice Plus antioxidants: what three studies measured
The word turns into a number the moment someone measures it. Three separate research teams did exactly that. They took people’s blood before and after a course of a fruit and veg concentrate, and they measured what genuinely turned up in the bloodstream. Real numbers on a lab report, read off a machine that has no opinion about capsules.
In 2003, a team writing in the Journal of Nutrition ran a double-blind trial on thirty-two men. Double-blind means nobody knew who was getting the real capsule, not the volunteers and not the researchers handing them out, so wishful thinking could not nudge the result. Against a dummy capsule, the concentrate raised their blood levels of beta-carotene, vitamin C and vitamin E, and lifted their folate too. You can read the published study on PubMed.
A year later, researchers in the Journal of the American College of Nutrition tested fifty-nine healthy adults aged forty to sixty. Same finding. Beta-carotene, vitamin C, vitamin E and folate all climbed on the concentrate. Then in 2007 a Japanese team, publishing in the Asia Pacific Journal of Clinical Nutrition, ran the test again with their own volunteers and landed on the very same result.
Three teams. Three countries. One direction. That is published, peer-reviewed science, the kind you can stand over, and it is the whole reason I trust what I take.
Why we fall short in the first place
Your body makes a few of its own antioxidants, but the ones your cells lean on most, the carotenoids and vitamin C and vitamin E, come from food. Fruit and veg, mostly. Colour on the plate. The deeper and more varied the colour, the wider the spread of antioxidants you take in, which is why a plate of beige rarely pulls its weight.
That is exactly where most of us come up short. Five-plus portions a day is a real stretch when the week runs away with you, and the honest truth is a lot of us land nowhere near it. I have written before about closing that fruit and veg gap when life is busy and the good intentions slip. When the food falls short, so does the raw material your cells use to keep those sparks in check.
A concentrate earns its place on the days the dinner plate lets you down. It tops up the gap, and that is the whole job of it.
What this honestly does, and does not, mean
Let me be straight with you, because I would far rather you trusted me than felt sold to.
Raising the antioxidant levels in your blood is the claim. Full stop. It is measurable, it is evidenced, and it has held up more than once. It is concentrated real food, not a medicine, and it cures nothing and treats no condition. It lifts the level of protective compounds in your blood the same way a strong week of eating well would.
If you want to go a layer deeper, those same antioxidants are wrapped up in how the body handles chronic inflammation, and there is separate research on whether the concentrate actually gets absorbed into the blood in the first place. That last bit matters most of all. No absorption, no point.
One sentence worth remembering
Next time someone asks you what an antioxidant actually does, you will not have to fumble it.
Free radicals are the everyday wear and tear of being alive. Antioxidants are what settle them down. Most of us do not eat enough of the fruit and veg they come from, and three independent studies have measured a fruit and veg concentrate raising those levels in real people’s blood. That is the honest answer. And it is a far better one than the nod in the kitchen.




