@ Mike: Within the diet, the richest sources of boron are fruits, vegetables, pulses, legumes, and nuts. Dairy products, fish, meats and most grains contain very little boron.
http://www.greenfacts.org/en/boron/l-2/boron-3.htm#2
Foods of plant origin, especially fruit, leafy vegetables, nuts, legumes, wine, cider and beer are high in boron. Meat, fish and dairy products are poor sources. Boron in the diet helps the of the steroid hormones oestrogen and testosterone in humans and animals.
Bron:
Understanding, Preventing and Overcoming Osteoporosis https://books.google.nl/books?id=DS...age&q=boron plants dairy meat&f=false https://books.google.nl/books?isbn=0753547589
[...] fruit, vegetables with leaves and legumes contain relatively high amounts of boron. Boron concentration in meat, fish and dairy food products is not high. Hazelnut butter, avocado, vine, peanuts and other nuts
with shells have high amounts of boron. in:
Health effects of metals and related substances in drinking water:
https://books.google.nl/books?id=zi...;ei=z96YVfnOGIKUUcbRqWA&ved=0CCoQ6AEwAjgK
The richest sources of boron include fruits, leafy vegetables, legumes, and nuts. Wine, cider and beer also contain high levels of boron. Dairy products, fish, meats, and most grains are poor sources. (Table 1)
http://www.cfs.gov.hk/english/multimedia/multimedia_pub/multimedia_pub_fsf_37_01.html
