•  Mineral Oil

  (no brand names listed)

This nutrient is converted to vitamin A by the body, therefore, deficiency symptoms are the same as those of vitamin A. The earliest symptom is night blindness. Prolonged deficiency leads to more advanced changes in eye tissue. Other potential signs of mild to moderate deficiency include rough, dry skin, loss of appetite, loss of hair luster, brittle nails, joint pain, and possibly increased susceptibility to infection.

The earliest symptom of deficiency of this nutrient is night blindness. Prolonged deficiency leads to more advanced changes in eye tissue. Other potential signs of mild to moderate deficiency include rough, dry skin, loss of appetite, loss of hair luster, brittle nails, joint pain, and possibly increased susceptibility to infection.

Vitamin D deficiency leads to abnormal bone formation (rickets) in children and softening of the bones (osteomalacia) in adults. Vitamin D deficiency interferes with calcium absorption, leading to deficiency of that nutrient with all of the associated symptoms (such as increased risk of fractures, osteoporosis (bone loss), and muscle weakness). Because this nutrient is fat-soluble, prolonged periods of deficiency are required to produce these symptoms.

While deficiency of this nutrient is uncommon, it negatively affects muscle tissue, red blood cells, nervous, and reproductive systems. Over the long-term, depleted levels of this nutrient may also be associated with cancer, heart disease, and altered immune function.

The major symptom of vitamin K deficiency is an inability of the blood to clot properly, which may lead to excessive bleeding and a tendency to bruise easily.

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