Brittle hair
Low levels of omega 3 essential fatty acids can lead to brittle hair that breaks when you brush it. Good nutrition can help to strengthen the hair shaft and reduce breakage.
White spots on nails
These little white spots can appear on the surface of your nails if you have a mild zinc deficiency.
Headaches
These can often be caused by dehydration so drink at least 1.5 litres of water every day to prevent minor headaches occurring.
Bleeding gums
A Vitamin C deficiency can result in bleeding gums, and in severe cases scurvy can develop.
Dry flaky skin
Low levels of vitamin A and deficiencies in essential fatty acids such as omega 3 can cause dry flaky skin.
Cracked lips
If you're low in vitamin C or vitamin B2 you could be susceptible to cracked lips.
Pale tongue
Anaemia sufferers often have a pale tongue, signalling that they are low in iron.
Hair loss
Lack of iron and following a diet that is low in protein can sometimes contribute to hair loss.
Muscle cramps
A mineral deficiency involving calcium, potassium or sodium can lead to muscle cramps occurring.
Dark circles under eyes
Shadows under your eyes can be hereditary, but in some instances, low levels of iron can result in dark circles appearing.