It looks to me like the usual quack BS.

When I read a statement like "Dr. Mindell is regarded as the world's
number one authority on wellness", the BS meter crosses the red
line.

I don't know anything about Goji berries.  However even if everything
he says about them is true, it doesn't follow that they will do any
particular person any good.  In the first place, "free radicals" (which
I understand to be oxygen atoms not combined with other atoms
and hence highly likely to oxidize other molecules) are not the cause
of all or even most illnesses.  And in the second place I suspect
that, even to the extent that a person will benefit from antioxidants,
he'll only benefit to the extent that they combine with free oxygen
in the body.  If a person already gets adequate antioxidant intake
from vitamin C, lycopene, and/or other sources, how much
additional benefit will he get from Goji berries?  A sledge hammer
is more effective than a regular hammer at driving nails.  But if
you've already driven the nail flat with a regular hammer, will you
get any extra benefit from whacking it with a sledge hammer?

But, of course, I'm not the number one authority on wellness.  So
Dr. Mindell may know some things that I don't.

    Alan