U.S. vegans may be at risk
for low iodine intake, and vegan women of child - bearing age should supplement with 150 μg iodine daily.
Another study demonstrated an increased incidence of Hashimoto's and positive thyroid autoantibodies when Italy improved
its low iodine intake between 1995 and 2010 (15).
These experts believe
the low iodine intake is then compounded by eating an excess of foods (known as goitrogens) which inhibit the small amounts of iodine ingested from being absorbed and converted from T4 to T3.
They had a higher amount of this, and they had
a lower iodine intake, but there was no difference in thyroid function.
Low iodine intake can also lead to goiter.
«We found that high consumption of cruciferous vegetables was associated with thyroid cancer among women with
low iodine intake (OR = 1.86; 95 % CI: 1.01 — 3.43 for iodine intake < 96 ug / day).