However, this was not my actual question; which concerns whether soy products are really as healthy as the food industry likes to portray them? The main principle lies in the amount, because too much is unhealthy, as you always say.
Basically soy is a high-quality plant protein in which Isoflavones are also contained in large quantities in the form of phytoestrogens. Nevertheless, the protein and the Isoflavones, as well as other substances of soy, are in no way harmless. In particular with long-term consumption of large quantities, the Isoflavones effect the hormone balance quite critically.
However, all the other soy substances are not harmless either, which is why they should be used as food only with sufficient caution or not at all. In particular no kind of food for children should contain any soy products at all, because with regard to the Isoflavones, especially the health of babies, toddlers and adolescents is impaired by soy products and in other respects health is seriously damaged. Already less than one quarter of a milligram of Isoflavones per one kilogram of body weight per day can cause very bad and irreparable health defects in children of every age, namely in relation to consciousness activity, the brain, the intelligence, the world of thought and feeling, the psyche, the physical body and the behaviour pattern etc.
If pregnant women consume soy products it can lead to heavy and irreparable damages to the foetus' body, limbs, nerves, cerebrum and muscles as well as to body deformations. More than a quarter of a milligram of Isoflavones per kilo of body weight should not be given to babies and toddlers under any circumstances.
Said with easy and generally understandable words and concepts, soy products of all kind, because of their toxic ingredients, in larger quantities are even capable of impairing the health of strong adults and to cause serious damage, which can lead to growth of tumours, respectively cancer and to the fostering of brain-, consciousness and behavioural disorders, personality changes and to infertility.
Especially breast cancer in women and men is often caused by soy products, as well as depression and Parkinson's, namely in particular when a hereditary disposition exists for it. Also Alzheimer's and dementia can be results of an excess of the Isoflavones, as well as an impairment of eyesight, the taste buds, the ability to concentrate, the moral balance and various other important life factors.
Then what ought to be the amount of soy that the adult may take? The quantity depends on the concentration of Isoflavones, of which a person should consume no more than half a milligram per kilo of body weight daily if he does not want to be impaired toxically. This means that a person of 70 kilograms of body weight should not consume soy products that exceed 35 milligrams of Isoflavones. However, with soy consumption this amount is reached very quickly.
This is indeed the case, because already a normal soy drink of 2.5 dl in size contains about 30 milligrams of Isoflavones.
And what is the case with drugs made of soy respectively concerning their Isoflavones? Such drugs are in no way recommend, if, on one hand, they are not adjusted for the body weight, and, on the other hand, are taken for too long a time, or if the person is especially susceptible with regard to Isoflavones
http://news.bbc.co.uk/2/hi/uk_news/northern_ireland/3513607.stm
I recall reading somewhere that tofu, miso etc (the fermented types of soy) are safe and that's why Asians have no problems with their consumption of soy. It's really only the western world that has decided to include soy in so many products (canned tuna for instance) and this is where the problems lies. Check the labels in your pantry and you'll be amazed at how much soy we're consuming, to our detriment!!!