Deficiencies are often hard to detect. You may notice no symptoms at all, or they may be so slight as to produce only mild, tolerable symptoms. Then again you may exhibit more intolerable symptoms that seem to have no apparent cause. You eat right, you exercise, but still you experience:
Tingling or numbness in your hands or feet. This can be a sign of vitamin B deficiency, especially B6, B12 and folate, or result from a calcium deficiency. This symptom is related to the deficiency’s effect on the peripheral nerves, which may also be exhibited as anxiety, depression, fatigue and hormone imbalances.
Cracks at corners of your mouth.
This could be a sign of zinc, iron or B2 vitamin deficiency.
Hair Loss or a red, scaly rash on the face.
A deficiency in vitamin B7 could be the culprit here. B7 (also known as biotin) is well-known for the role in plays in strengthening hair and nails.
Acne-like bumps on arms, thighs, cheeks or buttocks.
These bumps might result from a vitamin A or vitamin D deficiency. Insufficient omega-3s may also be a factor.
Leg, feet or toe muscle cramps.
Cramps might indicate a deficiency of magnesium, calcium and/or potassium, especially if recurring.
Fatigue/low energy.
May be due to any number of micronutrient deficiencies, including folic acid, iron, iodine, copper, sodium, or vitamins B12, B5, B1.
Altered sense of taste.
Suspect a copper deficiency, or a zinc deficiency which affects both taste and the sense of smell.
Impaired wound healing.
Copper, zinc, and vitamin C all play roles in wound healing.
Clotting and bruising issues:
Iron, folic acid, vitamin C
Allergies.
Might be due to insufficient selenium which also could cause heart muscle disorders and immune system deficiencies. Vitamin B6 also has a role in allergic reactions.
High blood pressure/heart issues:
Micronutrients are vitally important to heart health. Deficiencies in magnesium, vitamins B1, B3, B6, B12, calcium, phosphorus, selenium or potassium can cause anything from cardiac arrhythmias and circulatory problems to stroke.
Tired eyes/cataracts.
Vitamins A, B2, B12, and C all play a role in eye health. In fact, vitamin A deficiency is a leading cause of blindness in children, and has been shown as a cause of night blindness in pregnant women.