Polyphenols and Tannins:
Considered part of the flavonoid
group of phytochemicals that are biologically active in our organisms. Phytochemicals
have antioxidant characteristics which prevent our bodies from aging and
developing diseases. Not all phytochemicals are helpful in fact, these two have
negative actions towards absorption, and hormonal activity.
·
Tannins: Have similar methods of action as phytate acid by preventing digestibility of proteins, and binding minerals preventing
normal absorption.
·
Polyphenols: particularly in soybean and soy products
contain a polyphenol termed phytoestrogen, which mimics estrogenic activity,
and can act as goitrogen substances in the body. Without going into too much
detail on the mechanisms behind how these phytoestrogens
cause hormonal disruption, will keep it simple by stating that it can
potentially impact hormones by impairing
normal thyroid dynamics, disrupt menstrual cycles in females, and development
of a goiter.
Examples of Foods
·
Legumes
·
Nuts
·
Fruits
(berries)