Soy and levothyroxine
In the body: Soy can reduce how much levothyroxine, a thyroid medicine, the gut absorbs.
Not rated by dose: a flag on 3 reviewed foods, among them calcium-set tofu, Edamame, cooked and Soy drink, unsweetened, fortified.
For some people. Allergies, medicines and medical conditions: a flag for the people the source names, no wider.
The reference value and where it comes from
Reviewed foods that carry it
3 reviewed foods carry it; none is rated by dose.
How often you can eat it ?
No food here is rated by dose. Each line says why it’s listed: a flag for the people the source names, advice on handling it, or context.
Flags and context, not rated by dose
Edamame, cookedWorth knowing
How it’s rated
Flagged for people on levothyroxine: soy foods may reduce its absorption. The US label names soybean flour and soybean-based infant formula, not edamame, so applying it to whole green soybeans is by extension, and the label gives no quantity; people on levothyroxine are told to keep soy away from the dose.
Intake: not applicable (flag)
Measured on: not stated in the draft
Soy drink, unsweetened, fortifiedWorth knowing
How it’s rated
Flagged for people on levothyroxine: the US label says soybean flour, among other foods, may bind the drug and decrease its absorption. It names soybean flour and soy-based infant formula rather than soy drink, so the effect here is by extension, and the label gives no quantity.
Intake: not applicable (flag)
Measured on: not stated in the draft
Tofu, calcium-setContext
Sources
- SYNTHROID (levothyroxine sodium) tablet, label, DailyMed set id 1e11ad30-1041-4520-10b0-8f9d30d30fcc, published 2024-02-29
dailymed-synthroid· page · US government label text (DailyMed)