Winter brings a chill that can make even the warmest jacket feel insufficient. But if you find yourself shivering more than those around you, it may not just be the temperature—your body might be signalling a deeper issue. One common and yet overlooked cause is a deficiency in certain vitamins and nutrients that play a critical role in how your body regulates its temperature.
Here is why some people feel colder than others, the role of thermoregulation, and how specific vitamin deficiencies—especially vitamin B12, folate, and iron-regulating nutrients—can leave you reaching for that extra blanket.
