http://extoxnet.orst.edu/faqs/natural/plant1.htm

Natural Toxins in Food Plants
Some Examples of Natural Toxins
Each toxin is followed by a short list of some (not all) possible
sources
Enzyme inhibitors:
Cholinesterase inhibitors - in potatoes, tomatoes, and eggplant.
Protease inhibitors - in raw soybeans
Amylase inhibitors - in wheat flour
Tannins - in tea, coffee, and cocoa
Cyanogenic glycosides - in cassava.
Goitrogens (glucosinolates) - in Brassica species: cabbage, broccoli,
Brussels sprouts, etc.
Lectin proteins (phytohemagglutinins) - in red kidney beans
Lathyrogens - in chick peas and vetch
Pyrrolizidine alkaloids - in crops contaminated with weeds
Antivitamins:
Although not toxic per se, the anti-vitamins can cause problems as a
result of their interference with the function or absorption of
essential nutrients.
Anti-thiamin compounds - in mung beans, rice bran, beets, Brussels
sprouts
Avidin - in raw egg white

==================

http://extoxnet.orst.edu/faqs/natural/phytoest.htm

'Endocrine Disrupters' (Phytoestrogens) in Food Plants

What are phytoestrogens?
What food crops have phytoestrogens in them?
Are phytoestrogens toxic to animals or humans?
Do phytoestrogens prevent cancer?
How much phytoestrogen is in some common food products?

More information on Endocrine Disrupters.
=================

http://extoxnet.orst.edu/faqs/natural/natpest.htm

Naturally Occurring Toxins used as Pesticides in Organic Farming

In many states, for produce to be labeled 'organic', the producer must
participate in a state certification program than ensures that only
natural pesticides have been used on the produce.

One of the most commonly used naturally-occurring pesticides are the
pyrethrins. The pyrethrins are natural insecticides extracted from
chrysanthemums.

Certification programs usually allow the use of pyrethrums, rotenone,
ryania, and sabadillia as insecticides on organic crops. Some of these
natural pesticides, such as ryania, have not been well studied as to
their toxicity.

In some cases, organically grown produce may contain more natural toxins
than produce grown using conventional pest management. For example,
apple juice from organically raised apples contains more patulin, a
probable carcinogen, than conventionally raised apples.(Jukes TH.
Organic apple juice no antidote for alar. J Am Dietetic Assoc
1990;90(3):371.)

With respect to environmental impact, there is evidence that a mixture
of organic and conventional pesticides may be more effective with less
harmful impact on the environment than purely organic regimes.(Kovach et
al )

=============

etc etc

--
Oz
This post is worth absolutely nothing and is probably fallacious.

Use functions].
BTOPENWORLD address has ceased. DEMON address has ceased.