Vitamin and mineral deficiencies do not necessarily have to be caused by a disease. For example, lack of Vit D can be caused by an indoor lifestyle that many are so fond of these days.
Most of the time vitamin and iron deficiencies are actually caused by poor diet or poor absorption of the vits from the stomach into the bloodstream (such as the result from gastric bypass). Internal bleeding such as ulcers and blood loss from injuries can cause low iron counts. Pregnancy and bowel disorders can cause anemia as well.
With a good diet (may include suppliments), rest and exercise, the body will fix itself in these cases.
Doesn't have to be any disease process going on- These are considered --markers- from what you don't do for a healthy life.
Just plain "life style" can be a contributing factor- caused by not getting proper sleep, little or no exercise, very little outdoor activity for Vitamin D, poor diet- food choice- or poor absorption of the vitamins from the stomach into the bloodstream.
Hope you can get this back to normal and feel better....
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