Wholegrain flours provide a rich source of vitamins. Sourdough in particular is able to harness the vitamin content of the flour through increasing the bioavailability of the vitamins to the human body by unlocking them from the bran during the long, slow cool fermentation.

Vitamin B1 (Thiamin)

Essential for energy production, the nervous system, muscles and heart. It is water soluble and the body needs a constant supply as it is not stored. Promotes growth and boosts mental ability.

Deficiency can lead to depression, irritability, nervous disorders and loss of memory.

Vitamin B2 (Riboflavin)

Required daily as the human body does not store this water soluble vitamin. It is needed for energy production, breaking down carbohydrates, fats and proteins into usable energy forms. It helps the functioning of vitamin B6 and is required for growth, skin, hair and eye health as well as tissue repair.

Deficiency can lead to tiredness, cracked lips and itchy eyes.

Vitamin B3 (Niacin)

Essential for a healthy functioning digestive system, it is actually required by most tissues in the human body. It is also needed for energy.

Deficiency can lead to tiredness, depression and dry skin.

Vitamin B5 (Pantothenic acid)

Necessary for making red blood cells and alleviation of conditions like asthma, hair loss, allergies, stress and anxiety.

Deficiency can lead to muscle cramps, insomnia, tiredness, depression and stomach pains.

Vitamin B6 (Pyridoxine)

Essential for the immune system and nervous system. It also plays a role in the production of red blood cells and the hormones serotonin, norepinephrine and melatonin.

Deficiency can lead to anaemia, dermatitis and depression.

Vitamin B9 (Folate)

Essential for cell division and DNA production as well as energy production (as for all of the B vitamins).

A lack of vitamin B9 can lead to anaemia and loss of appetite.

Vitamin B12

Essential for the nervous system, development of red blood cells and the metabolism of every cell in the human body.

Deficiency can lead to tiredness, anaemia and increased risk of infections.

Vitamin E

A good antioxidant, vitamin E is fat soluble and essential for healthy skin, circulation and maintaining cells.

Deficiency can lead to eye problems and an increased risk of heart attack, strokes and certain cancers.

Vitamin K

Vitamin K is another fat soluble vitamin and is required for blood clotting and protein synthesis.

Vitamin K deficiency can result in bruising, bleeding, tooth decay and weakened bones.