Why people with thyroid disorders should eat mulberries
Plant compounds found in mulberries help support thyroid patients.
Mulberry is an antioxidant-rich fruit that is beneficial for people with thyroid issues. With a high content of vitamins and minerals, mulberries naturally help protect and enhance endocrine function.
1. Mulberry extract helps reduce oxidative stress
The thyroid is an endocrine gland that regulates energy metabolism and maintains the stability of bodily organs. However, because thyroid hormone synthesis (T3 and T4) involves a complex chain of chemical reactions, if not properly controlled or affected by external factors, it can easily lead to oxidative stress, causing cellular damage and serving as a precursor to autoimmune conditions such as Hashimoto's thyroiditis.
Mulberries contain high concentrations of antioxidants such as anthocyanin and flavonoids very high. These compounds act as potent free-radical scavengers, helping to neutralize excess oxidative molecules in thyroid follicles. Maintaining this balance helps protect the thyroid parenchyma from damage and maintain thyroid function.
Experiments have shown that mulberry extract can modulate the secretion levels of TSH, FT3, and FT4 in hyperthyroid or hypothyroid mice, adjust thyroid antibody levels in patients with Hashimoto's thyroiditis, and alleviate thyroid tissue damage. As a natural plant-derived ingredient, mulberry extract has the advantages of low toxicity, minimal side effects, and gentle, long-lasting efficacy.
2. Optimizing iodine uptake thanks to resveratrol
One of the most notable active compounds in mulberries is resveratrol. Medical data shows that resveratrol can stimulate the expression of transporters that allow thyroid cells to take up iodine from the blood to produce hormones.
When iodine uptake proceeds smoothly, the thyroid gland faces less pressure to overwork in order to compensate for raw material shortages. In addition, resveratrol has been studied for its ability to inhibit abnormal proliferation of glandular epithelial cells, contributing to preventing the formation of benign or malignant thyroid nodules.
3. Provides iron to support metabolic enzymes
Among berries, mulberries top the list for plant-based iron content. Iron not only plays a role in blood formation but is also an essential cofactor for the Thyroid Peroxidase (TPO) enzyme. This is the key enzyme responsible for attaching iodine to thyroglobulin molecules to produce hormones.
Iron deficiency (even before causing anemia) can also reduce the activity of the TPO enzyme, leading to a decrease in thyroid hormone levels in the blood. Adding mulberries to the diet helps ensure a steady supply of iron, supporting proper and complete thyroid biochemical reactions. In addition, mulberries contain natural potassium, which helps relieve fatigue and anemia—common symptoms in people with hypothyroidism.
4. Supports weight management and eases the burden of thyroid disease
Thyroid disorders (especially hypothyroidism) are often accompanied by metabolic disorders sugars and lipids, making patients prone to weight gain and fatigue. Mulberries contain the compound 1-deoxynojirimycin (DNJ), which can inhibit the enzyme alpha-glucosidase in the intestines, thereby slowing the absorption of sugar into the bloodstream.
This mechanism does not directly affect hormones, but it supports the thyroid in managing the body's energy levels. When blood sugar levels are stable, the burden on the metabolic system is lightened, helping patients improve fatigue symptoms and better manage their weight.
For people with thyroid conditions who often experience metabolic disturbances leading to weight gain, mulberries are a good alternative to overly sweet fruits. Mulberries have also long been used to treat insomnia and calm the nerves. People with hyperthyroidism or thyroid tumors who frequently experience anxiety and a rapid heartbeat can drink mulberry juice to soothe the nerves, helping promote deeper sleep.
5. Notes on safe mulberry consumption for people with thyroid conditions
Despite offering many benefits, incorporating mulberries into the diet of people with thyroid disease must adhere to the following principles to ensure safety:
Ripe mulberries contain a certain amount of sugar. People with blood sugar issues or hypothyroidism causing weight gain should consume them in moderation (about 50 - 100 g per day).
People using medications to treat diabetes or anticoagulants should consult a doctor because mulberries may enhance the effects of these drug classes, causing excessive hypoglycemia or increasing the risk of bleeding.
Opt for fresh fruit or 100% pure unsweetened juice to preserve heat-sensitive vitamins. Consume fresh berries or mulberry leaf tea at least 2 hours apart from medication.

