onions are potentially a good source of antioxidants, though interestingly the antioxidants

are concentrated in the outer layers immediately under the papery peel.

Unfortunately, most consumers discard these most nutrient-rich outermost layers, thus losing

a valuable part.

Here are some numbers.

Look at that.

More than 10 times more antioxidants than the outer layer of white onions compared to the

core.

You'll also note that yellow onions in general have more antioxidants than white, and red onions

beat them both, based on three different antioxin testing methods.

That's why I always try to buy red.

The red onions are indeed slightly better.

Yellow or white onions are no slouches, containing considerable levels of antioxidant activity.

So nutritious, sure, but are there any particular clinical benefits to onion consumption?

There are grammatically challenged titles like this in the medical literature purporting all sorts of miraculous benefits, but what do they base these claims on?

For example, here's a review purporting to have evidence that testosterone in males are enhanced

by onion.

But the researchers were talking about studies like this on the effects of onion juice on

testicular torsion in rats.

Who cares what happens after a rat testicle is rotated 720 degrees counterclockwise,

except, of course, the rat? You don't know what happens in people until you put human

testes to the tests, and onion extracts don't appear to work.

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