Thyroid hormone is used to treat underactive thyroid (hypothyroidism). It is a natural product made from animal thyroid glands (usually a pig's). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland.
Foods high in potassium include bananas, spinach, carrots and oranges. Decreasing potassium intake can cause levels in the body to drop, but this is not a common reason for a decrease in potassium levels. Low potassium levels can occur when the body loses too much fluid due to illness. This fluid loss may occur because of excessive amounts of vomiting and diarrhea.
Why Your Potassium May Be Low. 1  1. Medication sides effect: Some medications for illnesses like asthma or emphysema can lower your Potassium levels. 2  2. Kidneyâs lose Potassium: For patients whoâve had a kidney transplant or disorder like tubular acidosis, kidney disorders can cause low Potassium levels. 3. Low Magnesium or Sodium: Both Magnesium and Sodium are important to aid the body in Potassium metabolizing. An inadequate intake of Magnesium or absorption issues in the body can produce low levels of Potassium.