What vitamin deficiency makes you hungry all the time?

Author: Justus Schimmel III  |  Last update: Wednesday, June 11, 2025

Low nutrient levels in the appetite center of the brain can trigger a ravenous appetite and uncontrollable cravings! Our brain's appetite center has receptors that know if we are deficient on key nutrients like iron, vitamin D, or B-vitamins. If we are deficient, our appetite center gets turned on and we will eat more.

Can vitamin deficiency cause increased appetite?

It is believed that the hypothalamus will increase appetite and reduce energy expenditure due to low circulating levels of calcidiol due to vitamin D deficiency. These adjustments are made through the transcription pathways of the Neuropeptide Y (NPY) or Agouti related protein (AgRP) (24, 25).

Which vitamin deficiency causes overeating?

​ B vitamins deficiency

When you don't get enough B vitamins, your body's energy supply gets low. Without them, your body cannot turn food into the energy it requires, you can feel tired because of it and might end up eating more than your body needs, which can make you gain weight.

Does B12 deficiency make you hungry?

General physical symptoms of vitamin B12 deficiency can include: Feeling very tired or weak. Experiencing nausea, vomiting or diarrhea. Not feeling as hungry as usual.

How do you feel when your B12 is low?

Vitamin B12 or folate deficiency anaemia can cause a wide range of symptoms. These usually develop gradually, but can worsen if the condition goes untreated.
  • rapid breathing or shortness of breath.
  • headaches.
  • indigestion.
  • loss of appetite.
  • palpitations.
  • problems with your vision.
  • feeling weak or tired.
  • diarrhoea.

12 Strange Signs Your Body NEEDS Vitamin B1

Why do I feel more hungry than usual?

Constant hunger could be a sign of health conditions including diabetes, hyperthyroidism, depression and pregnancy. It's important to rule out medical conditions while addressing those hunger pangs. Looking for more nutrition advice and want to make an appointment with a registered dietitian?

What vitamin is hidden hunger?

The term “hidden hunger” is used to describe vitamin and mineral deficiency. When someone's habitual diet consists of foods that lack necessary levels of micronutrients, the resulting health impacts may not always be obviously visible.

What do you crave when your B12 is low?

The expert added: “Your body can crave foods that are high in iron such as marmite, twiglets, milk, salmon, egg yolks, tuna, chicken and other meats. “These are all good sources of vitamin B12, so if your body is craving them, listen to it.”

What deficiency causes rapid weight gain?

There are a wide range of hormonal issues that may cause sudden, unexplained weight gain. These include thyroid deficiency, declining estrogen (often due to menopause), and polycystic ovary syndrome (PCOS).

What is excessive hunger a symptom of?

Polyphagia, also called hyperphagia, is the medical term for a feeling of extreme, insatiable hunger. It's a symptom of certain health conditions. Eating typically doesn't make polyphagia go away, except in the case of low blood sugar (hypoglycemia).

Which vitamin is responsible for hunger?

B1 (Thiamine) may help regulate and enhance appetite, while B3 (Niacin) is required for the proper function of fats and sugars in the body.

What hormone causes excessive hunger?

What is ghrelin? Ghrelin is a hormone produced by your stomach. Other parts of your body, such as your brain, small intestine and pancreas, also release small amounts of ghrelin. Often known as the “hunger hormone,” ghrelin has numerous functions in addition to telling your brain you're hungry.

What are the facial signs of B12 deficiency?

The deficiency of vitamin B12 can cause specific skin manifestations, such as hyperpigmentation, vitiligo, angular stomatitis, and hair and nail changes [1].

What vitamin reduces appetite?

Getting enough fiber and protein is a natural way to suppress your appetite. Some vitamins and minerals such as calcium and vitamin D may also help.

How to flush vitamin D out of system?

But how do you flush vitamin D out of your system – and can you even do that? Yes, by ensuring you consume plenty of water. This will encourage urination, allowing your body to shed the excess vitamin D and calcium more quickly. Prescription diuretics like furosemide can also be helpful.

Which vitamin deficiency causes extreme hunger?

Calcium and Magnesium

Low levels of these two minerals—which often go hand in hand—prime you for sugar and salt cravings.

What organ is affected by B12 deficiency?

The consequences and severity of B12 deficiency are variable depending on the degree of deficiency and its duration. Major organ systems affected include the blood, bone marrow and nervous system.

What do you crave when your iron is low?

The term "pica" describes craving and chewing substances that have no nutritional value — such as ice, clay, soil or paper. Craving and chewing ice, known as pagophagia, is often associated with iron deficiency, with or without anemia, although the reason is unclear.

What vitamins are good for always hungry?

Certain vitamins and minerals, including zinc and vitamin B-1, can increase appetite. However, these usually only work if the person has deficiencies in these nutrients. Other supplements, such as omega-3 fatty acids, may boost appetite.

How to fix hidden hunger?

We can begin by eating a variety of colorful foods, like fruits, veggies, and foods packed with important vitamins and minerals. Fruits, vegetables, whole grains, and healthy proteins are crucial for the food world. By adding more of these nutrient-packed foods to our diets, we can stand up to hidden hunger.

What is the most common mineral deficiency?

Deficiencies in iron, vitamin A and iodine are the most common around the world, particularly in children and pregnant women. Low- and middle-income counties bear the disproportionate burden of micronutrient deficiencies.

Why do I never feel full no matter how much I eat?

Emotional Factors: Stress and mental health conditions can disrupt hunger signals, leading to a lack of satiety. Dietary Choices: Consuming foods low in protein or fiber may fail to promote feelings of fullness. Medical Conditions: Certain health issues, such as hormonal imbalances, can affect appetite regulation.

Why am I always hungry and fatigued?

Your symptoms can be due to several different conditions such as diabetes, an underactive thyroid gland (hypothyroidism), or congestive heart failure. Depression and mood disorders can sometimes also cause physical symptoms such as these.

What causes increased appetite in females?

Various factors — such as stress, increased activity, and certain medical conditions — can cause an elevated appetite. In females, low estrogen can play a role. Increased appetite is not always a cause for concern. However, it can be a sign of some medical conditions, such as hyperthyroidism and diabetes.

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