How does eating yogurt affect thyroid hormone levels?

I've been taking levothyroxine for several years now. In January, my doctor decided to increase my dosage from 0.25 mcg to 0.5 mcg. On Saturday, April 21st, I began eating a cup of yogurt, Dannon's Activia brand, a day. This past Friday afternoon, I started feeling hot, and my stomach felt unsettled. I also remember being hungrier than usual between my midmorning snack of yogurt and lunchtime that day. Could eating the yogurt in combination with taking the 0.5 mcg of levothyroxine cause these symptoms? I've read that yogurt contains iodine, which can increase thyroid hormone production. I haven't taken another levothyroxine tablet since that morning and would like to start back in case my thyroid levels become too low before my appointment on May 15th to have my blood checked. I have not had the symptoms again since Friday. Any help you could give would be greatly appreciated!

User Comments

  1. As of this morning, I've begun taking the levothyroxine. I called my doctor's office yesterday about the missed doses, and the person I talked with said I should be fine going into May 15th if I started back on it today. I guess time will tell if the symptoms recur. As for salt, I rarely add salt to my food. The only foods I salt are rice, grits, and eggs, and I don't eat these foods very often.
  3. Sorry I wasn't clearer on this point, but if eating foods containing iodine, like yogurt, can boost my thyroid hormone without me having to take the levothyroxine, I would much prefer that.
  4. Iodine deficiency is rare because of iodized salt. Tell your doctor your change in diet, maybe you fit into this rare group. Do not go off you medication without consulting your doctor. I think seafood and iodized salt maybe better sources of iodine for you.

    Iodine is a trace element found mostly in soil. In a perfect world, crops absorb iodine through their root systems, and humans and livestock take in iodine through the foods they eat. In vast regions of the world... arable land doesn't contain enough of this essential element, and crops and livestock in these areas are therefore deficient in iodine.

    Iodized salt -- table salt with iodine added -- is the main food source of iodine. Seafood is naturally rich in iodine. Cod, sea bass, haddock, and perch are good sources. Kelp is the most common vegetable seafood that is a rich source of iodine. Dairy products and plants grown in soil that is rich in iodine are ... good sources.
  5. you are hypothyroid. Stay away from iodine and foods containing it as much as possible. Gotta read the labels even on vitamins. Many multi vitamins contain iodine. This will slow down your metabolism and cause you to gain weight. Hypothyroid people must exercise (walking) no less than 40 minutes a day.

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    I take .112mg of Synthyroid. Your brand is the generic