What about Lugols & ACV (acidic)?

Dr. Jarvis :

I have learned through Vermont folk medicine that it is possible to repeatedly change an irritable, impatient, and restless child under ten years of age into a calm, patient individual within two hours' time by giving one drop of Lugol's solution of Iodine by mouth in a vegetable or fruit juice or in a glass of water made acid in reaction by adding a teaspoonful of apple cider vinegar. I have repeatedly prescribed this in order to make it possible for a mother of a racehorse-type little boy or girl to be able to live comfortably with the child. I have never seen it fail to calm down a nervous child.


http://jcrows.com/iodine.html


I don't quite understand the motivation behind this mix (Lugols & ACV), while we separate the ingestion of Lugols & Vit. C?