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Vitamin Deficiency That Makes You Feel Cold: Explained

Vitamin Deficiency That Makes You Feel Cold: Explained

July 15, 2026

Key Takeaways


  • Vitamin B12 and folate deficiencies can cause anemia , leading to cold sensitivity and other symptoms.
  • Iron deficiency anemia is a common nutritional deficiency that can disrupt temperature regulation.
  • Conditions like hypothyroidism and Raynaud's syndrome can also contribute to feeling cold, even with proper nutrient levels.
  • Getting tested for vitamin and mineral deficiencies is crucial to identify the underlying cause of cold intolerance.
  • Maintaining a balanced diet and considering supplements can help address nutrient deficiencies that cause cold sensitivity.

What Vitamin Deficiency Causes You to Feel Cold?


Feeling cold all the time can be really annoying. It's normal to feel chilly sometimes. But if you always feel cold, it might mean you have a health issue. Vitamin B12 and folate are two vitamins that could be the problem.

Vitamin B12 Deficiency


Vitamin B12 is key for making red blood cells . Without enough, you might get megaloblastic anemia. This makes it hard for your body to carry oxygen, which keeps you warm.

People with low vitamin B12 often feel cold, tired, weak, and look pale or yellow. It's not just about feeling cold; it's a sign of a bigger issue.

Folate Deficiency


Folate, or vitamin B9, is also important for making red blood cells . A lack of folate can cause megaloblastic anemia too. This makes it hard for your body to carry oxygen, leading to cold feelings, irritability, weakness, and heart issues.

Both vitamin B12 and folate deficiencies mess with how your body handles oxygen. This makes you more sensitive to cold and disrupts your body's temperature control.

To feel better, you need to fix these vitamin deficiencies. You can do this by eating better or taking supplements. Talking to a doctor is a good first step. They can help figure out why you're feeling cold and how to fix it.

The Role of Red Blood Cells in Body Temperature Regulation


Red blood cells are key in keeping your body temperature right. They carry hemoglobin, which holds oxygen. This oxygen is crucial for your cells to make heat and stay warm.

If your red blood cell count drops due to lack of vitamins or minerals, you might feel cold. This is because your cells don't get enough oxygen. Without enough oxygen, your body can't warm itself up properly.

|--------------------|---------------------------------------------------------------------------------| | Key Factor | Impact on Body Temperature | | Red Blood Cells | Carry hemoglobin to transport oxygen, which is needed for heat production | | Hemoglobin | Binds to oxygen and facilitates its delivery to tissues for metabolic processes | | Oxygen Transport | Supports the body's ability to generate heat and maintain a healthy temperature | | Thermoregulation | The body's complex system for controlling and regulating its temperature |

Knowing how red blood cells and their factors help with temperature control helps you find why you're always cold. This knowledge is key to solving the problem.

""Maintaining a healthy body temperature is essential for overall well-being, and red blood cells play a vital role in this process.""

Symptoms of Vitamin B12 Deficiency


A vitamin B12 deficiency can lead to many issues. One major problem is megaloblastic anemia. This is when your body makes fewer but bigger red blood cells. This makes it hard for oxygen to reach all parts of your body.

Some common vitamin B12 deficiency symptoms are:

  • Headaches
  • Shortness of breath
  • Loss of appetite
  • Vision problems
  • Heart palpitations
  • Fatigue
  • Diarrhea
  • Memory problems
  • Mouth sores

These symptoms can really affect your daily life. They can make it hard to focus, do tasks, and stay energized. If not treated, a vitamin B12 deficiency can cause serious problems like neurological issues and organ damage.

But, the good news is that treating vitamin B12 deficiency is simple. With the right diet and supplements, you can manage or even get rid of these symptoms. It's important to get regular tests and take care of yourself to stay healthy.

Causes of Vitamin B12 Deficiency


Vitamin B12, also known as cobalamin, is vital for our bodies. But, several things can lead to a lack of it. Knowing why this happens helps us fix the problem and get back to good health.

Pernicious Anemia


Pernicious anemia is an autoimmune disease. It stops the stomach from making a protein needed for vitamin B12 absorption. This makes it hard for the body to use B12 from food.

Lack of Dietary B12


People on a vegetarian or vegan diet might not get enough B12. Since B12 is mainly found in animal products, they might need supplements or fortified foods.

Stomach Surgery


Some stomach surgeries, like gastric bypass, can mess with B12 absorption. These surgeries might cut off parts of the digestive system that absorb B12, causing a deficiency.

Certain Medications


Some medications, like proton pump inhibitors, can also affect B12 absorption. People taking these might need to watch their B12 levels and possibly take supplements.

It's important to tackle the root causes of vitamin B12 deficiency. By knowing these causes, we can make sure we get enough B12. This can be through diet, supplements, or medical help if needed.


Folate Deficiency and Cold Sensitivity


A lack of folate (vitamin B9) can cause megaloblastic anemia and make you feel cold. Folate is key for making healthy red blood cells. Without enough, your body makes fewer but bigger red cells, making it hard to get oxygen.

Folate deficiency is common in pregnant women, people who drink a lot of alcohol, and those with certain digestive issues. It can also affect people with a genetic variant called MTHFR. Symptoms include feeling cold, tired, weak, having headaches, and heart palpitations.

|-------------------------|----------------------------| | Condition | Folate Deficiency Risk | | Pregnancy | High | | Alcohol Use Disorder | High | | Digestive Disorders | Moderate to High | | MTHFR Genetic Variant | Moderate to High |

To diagnose folate deficiency , doctors look at symptoms and blood tests . A blood serum folate level under 7nmol/L is a problem. It raises the risk of megaloblastic anemia.

Eating foods rich in folate or taking supplements can help. Good sources include leafy greens, beans, citrus fruits, and fortified grains.

""Folate deficiency during pregnancy can increase the risk of anemia and impact the proper development of the fetus' neural tube, potentially leading to congenital defects such as malformations of the heart or oral clefts.""

Iron Deficiency and Anemia


Iron deficiency anemia is a common nutritional issue that makes you feel cold. Iron is key for making hemoglobin, which carries oxygen in red blood cells. Without enough iron, your body can't make enough healthy red blood cells.

Symptoms of Iron Deficiency Anemia


The signs of iron deficiency anemia include cold hands and feet , fatigue , chest pain, and feeling lightheaded. These happen because your blood can't carry oxygen well.

Causes of Iron Deficiency Anemia


Several things can lead to iron deficiency anemia:

  • Blood loss from issues like peptic ulcers, hiatal hernia, colon polyps, or colorectal cancer
  • Not getting enough iron from food, especially for vegetarians and vegans
  • Poor iron absorption due to some medicines or stomach/intestinal surgeries
  • Increased iron needs during pregnancy or when kids and teens grow fast
  • Frequent blood donations, which can lower iron levels

To avoid and treat iron deficiency anemia, eat foods high in iron like red meat, poultry, seafood, beans, dark green leafy veggies, and iron-fortified cereals. Foods rich in vitamin C help your body absorb iron better. Sometimes, iron supplements or IV iron therapy are needed.

Other Potential Causes of Cold Intolerance


Vitamin and mineral deficiencies are common reasons for feeling cold. But, other medical conditions can also cause this issue. These include anorexia nervosa , diabetes , hypothyroidism , and Raynaud's syndrome . Iodine deficiency can also lead to hypothyroidism and cold sensitivity, though it's rare in the U.S.

Anemia, a lack of healthy red blood cells, can make you feel cold. Iron deficiency anemia is the most common type. It happens when the body doesn't have enough iron to make these cells. In severe cases, a blood transfusion may be needed.

Raynaud's disease is more common in women and people over 30. It's also more common in cold climates or in families with a history of the condition. This condition causes blood vessel spasms, leading to cold hands and feet.

Diabetes, especially type 2, can make you feel cold all the time. It can cause kidney and circulation problems. This makes it hard to keep your body temperature comfortable, especially in your feet.

Anorexia nervosa is an eating disorder that can make you feel cold. It's characterized by extreme weight loss. Symptoms include fatigue, thinning hair, and a weakened immune system. Being underweight can make it hard for your body to stay warm.

Poor circulation, often seen in diabetes and heart problems, can cause tingling and numbness in your limbs. It can also make you feel cold. Dehydration can make this worse by causing blood vessels to constrict.

|------------------------|----------------------------------------------------------------------------|--------------------------------------------------------------------| | Condition | Symptoms | Causes | | Anemia | Fatigue, shortness of breath, irregular heartbeat, pale/yellowish skin | Iron deficiency , chronic blood loss, poor diet | | Hypothyroidism | Fatigue, weight gain, constipation, dry skin | Autoimmune disorder, iodine deficiency, pituitary gland issues | | Raynaud's Syndrome | Numbness, tingling, and color changes in fingers and toes | Abnormal blood vessel function, often triggered by cold exposure |

If you always feel cold, see a doctor to find out why. They can help you get the right treatment. Fixing the problem, whether it's a vitamin deficiency or a medical condition, can make you feel better.

The Importance of Getting Tested for Deficiencies


If you always feel cold, don't ignore it. Instead of guessing or trying supplements, see a doctor. Blood tests can find vitamin and mineral imbalances that make you cold.

Fixing these imbalances can make you feel warmer. Issues like vitamin B12 deficiency , folate deficiency , or anemia can make it hard to keep warm.

Studies show that up to 42% of people have dandruff or seborrheic dermatitis. These problems can come from a diet lacking in nutrients like riboflavin (vitamin B2) and pyridoxine (vitamin B6). Hair loss, affecting up to 50% of men by age 50, can also be linked to iron , niacin (vitamin B3) , biotin (vitamin B7) , linoleic acid , and alpha-linolenic acid deficiencies.

Getting the right blood tests can show what's missing. Then, you can fix it with better food or supplements. This can help your body keep a normal temperature and stop feeling cold all the time.

|--------------|--------------------------------------------------------| | Nutrient | Recommended Daily Allowance | | Iron | 8 mg for men over 18 years old, and 18 mg for women | | Vitamin B12 | 2.4 mg for healthy adults | | Vitamin C | 60 mg for healthy adults | | Vitamin D | 600 IU for adults (800 IU for adults age 71 and older) | | Calcium | 1,000 mg for adults from food sources and supplements |

It's key to fix nutrient gaps with a balanced diet and supplements. Talk to a doctor to make a plan that fits your needs. This will help you keep your body temperature right.

""When addressing hair loss, it is important to focus on natural food sources of these nutrients rather than relying on supplements unless a deficiency diagnosis is confirmed.""

Conclusion


Feeling cold when others don't might mean you're missing out on vitamins or minerals. B vitamins like B12 and folate, or iron, are key for making red blood cells. These cells help carry oxygen, which keeps your body warm.

By finding and fixing any nutritional gaps, you can get your body's temperature back to normal. This makes you feel comfortable, even when it's chilly.

Getting medical tests is the best way to figure out why you're cold. Blood tests can show if you're missing important nutrients. Doctors can then make a plan to help you feel warm and full of energy again.

With the right food choices or supplements, many people can beat cold intolerance. This improves their health and happiness.

It's important to notice signs of vitamin or mineral shortages. Look out for changes in weight, how tired you feel, your skin, or your mind. Fixing these issues helps you feel better and more comfortable every day.

Keep an eye on your health and talk to your doctor often. This ensures you have the right nutrients and can handle temperature changes well.

FAQ


What vitamin deficiency can cause you to feel cold?


Feeling cold more than others or having cold hands and feet might mean you lack certain vitamins. This could be due to a lack of B vitamins like B12 or folate, or iron.

How can a vitamin B12 deficiency lead to feeling cold?


Not having enough vitamin B12 or folate can cause megaloblastic anemia. This is when your body makes fewer red blood cells that are too big. It makes it hard for your body to carry oxygen, which is key for staying warm.

How does iron deficiency anemia contribute to feeling cold?


Iron helps make hemoglobin, a protein in red blood cells that carries oxygen. Without enough iron, your body can't make enough healthy red blood cells. This makes it hard for your body to transport oxygen and can make you feel cold.

What other medical conditions can cause cold intolerance?


Besides vitamin and mineral deficiencies, other health issues can make you feel cold. These include anorexia nervosa , diabetes , hypothyroidism, Raynaud's syndrome , and iodine deficiency.

Why is it important to get tested for vitamin deficiencies?


If you always feel cold, it's crucial to see a healthcare provider. They can run blood tests to find out if you're missing important vitamins or minerals. Fixing these issues can help you feel warmer and prevent your condition from getting worse.

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