These are the foods you are eating and that could cause hypothyroidism

Do you have a healthy diet? Probably if we approached a group of people in the street and asked them that question, almost everyone would answer yes. However, more and more studies are finding a relationship between certain diseases and a diet that is not adequate. The last? Hypothyroidism Maybe you didn't know, but many plant foods that we consider healthy contain molecules that can alter the hormonal and metabolic balance, as indicated the psychiatrist and nutritionist Georgia Ede in 'Psychology Today'.

But what is hypothyroidism? Is about a disorder in which the thyroid gland does not produce enough of certain crucial hormones. Your symptoms vary depending on the severity of hormonal deficiency and tend to develop slowly, often over several years, because at first they are barely noticeable (such as fatigue or weight gain). Custom that the metabolism continues to slow down They begin to be more evident: fatigue, constipation, dry skin, muscle weakness, hair thinning, muscle and joint pain, irregular menstrual periods or depression.

Goiters are natural substances that plants have and that interfere with normal thyroid function and can cause goiter

What does all this have to do with food? When the thyroid gland has difficulty producing enough thyroid hormone, it can grow to try to do its job better, forming a goiter (enlarged thyroid), and the people who they don't get enough protein or iodine in their diets They have a high risk of developing this goiter. More than two billion people in the world suffer from this disease because they have iodine deficiency, which, fortunately, does not happen in developed countries, where Foods rich in high quality protein abound and this iodine is added to salt and processed foods. However, there is a little known risk factor It can affect anyone and they are dietary goitrogens.

These are natural substances that plants have and that interfere with normal thyroid functionTherefore, they can cause goiter, especially when protein or iodine in your diet is scarce. Here are some you may need to know.


Soy contains two goitrogens: genistein and daidzein. Historically it was believed that they were healthy but it has been known for some time that they can cause hypothyroidism. "There is strong clinical evidence" indicates the psychiatrist. "It was discovered that babies fed with a form of soybeans could develop this disease, and that it was reversed when He stopped giving this formula. During the 1960s, manufacturers began adding iodine to reduce the risk. "Soy goiters are also not reversed just because food is cooked and also affects adults.


Onions contain two different goitrogens: quercetin and propyl disulfide, mainly from the first one, found in a wide variety of fruits and vegetables. Quercetin reduces the activity of thyroperoxidase, as well as the activity of a second enzyme, hepatic deiodinase (a liver enzyme required to activate thyroid hormone). Boil the onion reduce the amount of these goitrogens until a certain point.

Cruciferous vegetables

Broccoli, cauliflower, Brussels sprouts, kale… They sound very healthy, don't they? But they also contain thiocinates and excessive consumption should be avoided at all costs.


The luck is that it is not a very typical food in our country, although, like cassava (which you should also avoid) is becoming popular in recent times. Millets are a group of several cereals with small seed and that they have a high protein content, in addition to their richness in iron. It contains goitre flavonoids that greatly reduce the activity of thyroid peroxidase.

The bottom line is that if you have an underactive thyroid you should reconsider reducing the intake of these foods. Special care must be taken pregnant women and infants.