Feeling constantly cold can be a sign of various health issues, and one potential culprit is vitamin deficiency. Specifically, a deficiency in vitamin B12 could contribute to this sensation. Vitamin B12 plays a crucial role in maintaining a healthy nervous system and producing red blood cells, which are responsible for carrying oxygen throughout the body. When deficient in vitamin B12, the body may struggle to efficiently transport oxygen, leading to a feeling of coldness, especially in the extremities.

Additionally, inadequate levels of vitamin D can also impact body temperature regulation. Vitamin D deficiency has been linked to poor circulation and compromised immune function, both of which can contribute to feeling cold.

Furthermore, insufficient intake of iron, another essential nutrient, can lead to anaemia, characterised by a decreased ability of the blood to carry oxygen. Anaemia can result in cold hands and feet, along with other symptoms like fatigue and weakness.

What vitamin deficiency causes you to feel cold? it's essential to consult with a healthcare professional for proper diagnosis and treatment. A balanced diet rich in vitamins and minerals, along with supplements if necessary, can help address deficiencies and alleviate symptoms of feeling cold.