The term 'nutrient index disease' is primarily used to describe diseases/conditions that appear in clear cases of clinical deficiency.
Example: Vitamin C deficiency is linked to scurvy, while vitamin D deficiency is linked to rickets in children and bone disease (osteomalacia) in adults.
However, it's important to note that many of the recommendations based on the Daily Value (DV) were designed to protect against short-term deficiencies. Subclinical deficiency (i.e. a deficiency not severe enough to cause an index disease) may have detrimental effects that don't show up for years or that manifest as another condition.
People tend to assume that if the DV of a nutrient is enough for preventing an index disease, then the DV is also an adequate amount for the long term; in fact, this isn't the case.
Example: Iron deficiency is often associated with anemia. However, iron deficiency also can have a negative impact on immune functions. Adequate levels of iron are necessary in order to help maintain cellular immunity and protect against infection. People with low iron levels often have little to no resistance against candida, herpes simplex virus, and other pathogens. However, having to iron levels that are too high can cause infection. Thus, the iron provided in Vitaminpacks.com’s formulas are in relatively small amounts in order to provide a small boost of iron levels that are usually achieved simply by having a well-balanced diet.
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