Frosty
06-03-2009, 03:40 PM
This is an interesting article on the role of cruciferous vegetables in our diet and the goitrogens they contain. It's relevant to body composition. I think the conclusion would be against large intakes of things like broccoli like is often suggested, and taking a MUCH more moderated approach to these vegetables in terms of body composition:
"At low concentrations, the goitrogens in cabbage and other crucifers inhibit the uptake of iodine by the thyroid gland; this effect can be overcome by an increased dietary intake of iodine. At high concentrations, however, these chemicals inhibit the incorporation of iodine into thyroid hormone. In this case, even the iodine that makes it into the thyroid gland cannot be used; dietary iodine therefore cannot overcome the effect of very large amounts of crucifers.9"
http://westonaprice.org/basicnutrition/crucifers.html
"At low concentrations, the goitrogens in cabbage and other crucifers inhibit the uptake of iodine by the thyroid gland; this effect can be overcome by an increased dietary intake of iodine. At high concentrations, however, these chemicals inhibit the incorporation of iodine into thyroid hormone. In this case, even the iodine that makes it into the thyroid gland cannot be used; dietary iodine therefore cannot overcome the effect of very large amounts of crucifers.9"
http://westonaprice.org/basicnutrition/crucifers.html