Sep 30, 2025 · Vitamin B12 is an important nutrient that helps your body make red blood cells and DNA, the genetic material in all of your cells. It’s essential to how your body functions. Without treatment, …

Dec 14, 2023 · B12 deficiency can cause a variety of symptoms, including fatigue, headaches, depression, pale or yellow skin, mental impairment, and pain and inflammation in the mouth and …

Apr 30, 2017 · Vitamin B12 deficiency is associated with cognitive problems (problems with thinking, judgment, and learning) and memory issues. So, it may play a role in conditions such as Alzheimer's...

Dec 9, 2025 · Vitamin B12 deficiency can cause symptoms of anemia, nerve problems, and sensory changes that often resemble other conditions, making diagnosis difficult. Most cases are due to low …

Nov 9, 2025 · Common symptoms include weakness, fatigue, difficulty concentrating, and shortness of breath. Over time, you may also develop changes in mood, memory, and/or personality. 2

Oct 22, 2025 · Being too low in vitamin B12 may cause everything from extreme fatigue to wonky vision. Here, dietitians and science reveal telltale signs of a vitamin B12 deficiency.

Vitamin B12 deficiency can occur in vegans who do not take supplements or as a result of an absorption disorder. Anemia develops, causing paleness, weakness, fatigue, and, if severe, shortness of breath …

Sep 28, 2023 · Symptoms of vitamin B12, or folate, deficiency can include fatigue, lethargy, low mood, shortness of breath, and nerve problems. Treatment often involves dietary changes or vitamin B12...

To find out more about the possible signs and symptoms of vitamin B12 deficiencies, click on the body area buttons on the diagram below to see some of the most common symptoms affecting each part …

Read about the symptoms of vitamin B12 or folate deficiency anaemia, which usually develop gradually, but can worsen if the condition goes untreated.