There are a lot of snake oil sellers that appear on the forum. This one, don't think so since they aren't selling a pill or a dried herb or a miracle cure book.
Okra as IHS says is used in the traditional medicine in India and other countries. PubMed also shows a number of small studies investigating it's use.
What about soaking it in water and drinking the water? Well that is one of the traditional ways of preparing it.
One recent study did exactly that and fed it to rats showing that it does have a beneficial effect on glucose levels in rats.
The study found a lowering of both postprandial and fasting glucose levels when using the Okra solution together with glucose ..
"It is assumed that this effect of okra is due to the presence of large amount of soluble dietary fibers which retard glucose absorption from the gastrointestinal tract."
HOWEVER
When given Metformin and the Okra solution the effect of the Metformin (and the Okra) was almost completely negated ie the glucose levels stayed almost at the levels of the diabetic rats who received no treatment at all
'Water-soluble Fraction of Abelmoschus esculentus L Interacts with Glucose and Metformin Hydrochloride'
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263724/#!po=50.0000
So my answer to the poll is yes, according to this small study, if you are a diabetic rat glucose levels will be lowered by a solution derived from Okra
but if taken together with metformin the effect of both the Met and the okra may be lost.
This was a rat study though and we know that Met alone works very well in humans.
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