Isoflavones are found in small amounts in a number of legumes, grains, and vegetables, but soybeans are by far the most concentrated source of isoflavones in the human diet (104, 105) .
Standing water under a house is usually the result of only two things; either a leaking water line, or from surface water drainage around the house. If it was from a leaking water line, the leak would have to be substantial, and you would hear running water in the house.
Preventing Standing Water. When surface water is not diverted from the house and its foundation, it can run back towards the structure and collect under the house. Downspouts not connected to a drain pipe and not angled to move the water away from the house can cause water to run towards the house instead.