Phytoestrogens
Six phytoestrogens
are examined in the National Report. Three of the chemicals are
detected throughout each racial/ethnic group, one is detected
in each group at the 25thpercentile, and two are detected in
all groups at the 50th percentile. Of the six chemicals detected
broadly enough to develop a geometric mean, the geometric mean
is highest for one chemical in Blacks and five chemicals in Whites.
Six chemicals are detected at the 95th percentile. Two of the
chemicals are detected in Mexican-Americans at levels that are
up to, on average, 80% greater than Blacks and Whites. Four of
the chemicals are found in Whites at levels that are up to, on
average, 91% greater than in Mexican-Americans and Blacks. One
chemical is only detected in Mexican-Americans. Phytoestrogens
are naturally-occurring chemicals found in soybeans and clover.
The National Report is evidence that the White population has
the greatest overall exposure to phytoestrogens and that a portion
of the White populations is exposed to disproportionately high
levels of phytoestrogens.
Phytoestrogens
(note - no data indicates non-detect)
| Phytoestrogens |
Race/
ethnicity
|
Geometric mean
(ug/g)
|
95th percentile
(ug/g)
|
Findings |
| Daidzein |
Black |
59.1 |
797 |
The average daidzein level in
Mexican-Americans and Whites is 23% greater than in Blacks.
The daidzein level in Mexican Americans
at the 95th percentile is up to 71% greater than
in Blacks and Whites.
|
| Mexican-American |
72.5 |
1360 |
| White |
72.8 |
908 |
| Enterodiol |
Black |
16.6 |
164 |
The average enterodiol level
in Whites is 72% greater than in Blacks and 46% greater than
in Mexican Americans.
The enterodiol level in Whites at the 95th
percentile is up to 53% greater than in Blacks and Mexican-Americans.
Enterodiol is detected at the 25th
percentile in Mexican-Americans.
|
| Mexican-American |
19.6 |
193 |
| White |
28.6 |
252 |
| Enterolactone |
Black |
168 |
1590 |
The average enterolactone level
in Whites is 43% greater than in Blacks and 24% greater than
in Mexican-Americans.
The enterolactone level Whites at the 95th
percentile is up to 56% greater than in Blacks and Mexican-Americans.
|
| Mexican-American |
194 |
2100 |
| White |
241 |
2480 |
| Equol |
Black |
4.36 |
25.6 |
The average equol level in Whites
is 109% greater than in Blacks and 87% greater than in Mexican-Americans.
The equol level in Whites at the 95th
percentile is up to 220% greater than in Blacks and Mexican-Americans.
Equol is detected at the 50th
percentile in Blacks and Mexican-Americans and the 25% percentile
in Whites.
|
| Mexican-American |
4.89 |
36.8 |
| White |
9.13 |
56.5 |
| Genistein |
Black |
17.1 |
299 |
The average genistein level in
Mexican-Americans is 23% greater than in Whites. The average
genistein level in Whites is 35% greater than in Blacks.
The genistein level in Mexican-Americans
at the 95th percentile is up to 88% greater than
in Blacks and Whites.
|
| Mexican-American |
28.4 |
562 |
| White |
23.1 |
381 |
| O-Desmethylangolensin |
Black |
3.58 |
177 |
The average o-desmethylangolensin
level in Whites is 23% greater than in Blacks and 117% greater
than in Mexican-Americans.
The o-desmethylangolensin level in Whites
at the 95th percentile is up to 34% greater than
in Blacks and Mexican-Americans.
O-desmethylangolensin is detected at the
50th percentile in Mexican Americans and the
25th percentile in Blacks and Whites.
|
| Mexican-American |
2.03 |
190 |
| White |
4.40 |
228 |
| 
