White spots or marks can
indicate low zinc
or calcium. Nails that are thin and splitting can
suggest magnesium, copper or essential fatty acid deficiency
. These indications are not absolute but can
provide some clues for malabsorption issues.
Check your scalp and face. Dryness and dandruff
in the scalp and hair areas can
indicate that there is low omega-3 intake, depleted vitamin A, B-6, zinc, sulfur or inadequate protein intake in the diet.