3. Anemia
This cause is a result of a shortage of red blood cells in the body. Red blood cells enable healthy circulation (blood flow). Especially in the case of severe anemia, cold feet is a common response. One common cause of anemia can be an iron deficiency. This is not uncommon, even in really healthy individuals. Treatment is easy, including diet modification and nutritional supplements. Healthline lists this as a common cause of cold feet.
So, if you are vegan or vegetarian, you might take a second look at this cause, because avoiding red meat, white meat, and seafood (if one’s not careful) can be a potential kicker for low iron levels. Many vegetables and fruits have good amounts of iron, beets being a primary source (and easy to remember because they are red as the blood), as well as spinach, lentils, tofu, strawberries, tomatoes, peas, oranges and more!