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What
is a typical daily dose for green tea
One cup of green tea roughly equals 100mg of tea catechins. Typically
research investigations have involved individuals drinking three
cups of green tea (300mg catechins) each day. Alternatively, capsules
of green tea are widely available. Most catechins when ingested
in green tea are passed through the gut and excreted intact. Very
little is actually absorbed into the blood stream.
Research indicates that ingestion of 3 grams of green tea solids
will yield plasma levels of catechins in the nanograms per milliliter
of plasma range which is very low. The researchers also noted that
increasing green tea intake to 4.5 grams did not significantly increase
the amount absorbed into the blood plasma so there seems to be an
upper limit to the amount of catechins that can be absorbed and
carried in the blood stream. Taking larger amounts of green tea
will not necessarily equate to an increased level of blood plasma
catechins or improved treatment effect! Green tea is well tolerated
by most individuals with no significant side effects reported.
What
is a typical daily dose for green tea references
- Hara
Y. Influence of tea catechins on the digestive tract. J Cell Biochem
Suppl. 1997;27:52-8.
- Yang
CS, Chen L, Lee MJ, Balentine D, Kuo MC, Schantz SP. Blood and
urine levels of tea catechins after ingestion of different amounts
of green tea by human volunteers. Cancer Epidemiol Biomarkers
Prev. 1998 Apr;7(4):351-4.
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