How does a deficiency of group B vitamins manifest itself?Updated 10 months ago

A lack of group B vitamins can have a number of manifestations that differ according to the particular deficient vitamin. However, fatigue, weakness, memory and mood problems, anemia or skin problems generally occur. 

Deficiency of group B vitamins may include the following symptoms:

• Vitamin B1 (thiamine): Fatigue, irritability, impaired memory, muscle weakness, in advanced cases, neurological problems. 

• Vitamin B2 (riboflavin): Cracks in the corners of the mouth, inflammation of the mucous membranes, red eyes and skin rashes, which can appear especially on the face.

• Vitamin B3 (niacin): Dry, reddened skin, muscle weakness, headaches, dizziness.

• Vitamin B5 (pantothenic acid): Fatigue, poor hair quality, weakened immunity and muscle cramps.

• Vitamin B6 (pyridoxine): Depression, irritability, confusion, anemia, insomnia, and weakening of the immune system.

• Vitamin B7 (Biotin): Hair thinning and loss, brittle nails, skin rashes, fatigue and muscle pain.

• Vitamin B9 (folate): Fatigue, weakness, anemia, problem with cell growth and increased risk of fetal malformations during pregnancy.

• Vitamin B12 (cobalamin): Fatigue, weakness, neurological problems such as tingling in the limbs, memory problems, depression and anemia.

A combination of B vitamin deficiencies can lead to more extensive symptoms. Mainly low energy level, increased stress, poor concentration, nervousness and worse regeneration.