It is generally safe for people with thyroid conditions to eat colocasia, also known as taro root or elephant ear. Colocasia is a starchy root vegetable that is rich in nutrients, including dietary fiber, potassium, and vitamin C. However, it is important for people with thyroid conditions to pay attention to their overall diet and to consult with a healthcare provider about any specific dietary restrictions or recommendations. For example, people with hypothyroidism may need to restrict their intake of goitrogens, which are substances that can interfere with thyroid function. Some vegetables, including raw cruciferous vegetables such as broccoli, cabbage, and kale, contain goitrogens and should be eaten in moderation or cooked. Colocasia does not contain goitrogens, so it can generally be eaten without concern in this regard.