Dr Jarvis' explanation for not using citrus juices
From Folk Medicine by Dr. Jarvis
"At breakfast this man omits wheat foods, wheat cereals,
White Sugar , and citrus fruits and fruit juices because in the majority of people these foods change the normal acid reac-tion of the urine to alkaline. The alkalinity is a signal that the blood is thicker than it should be, that it is not easily circulated and requires more heart effort to pump it. There-fore this man replaces these unwise foods with rye and corn foods and cereals. Instead of white
Sugar he uses honey. In place of citrus foods and citrus juices he takes the contents of a bottle of fruit sold at the grocery store under the name Junior Foods. Or, if he chooses, he may take apple, grape, or cranberry juice.
At lunchtime he takes two teaspoonfuls of apple cider vinegar and two teaspoonfuls of honey in a glass of water. In this way he obtains acid taken up from the soil by fruit, berries, edible leaves, and roots, and the energy from the sun which exists in honey. This is a prime pick-up drink. He may take it before, during, or after lunch. A vinegar made from the whole crushed apple is best for the purpose.
When a person is organizing his body for a day of dynamic action, the organization shifts the urine reaction from the normal, or acid, to the alkaline. It is not advisable, therefore, to eat foods at the morning meal which will, so to speak, duplicate the shift. For this reason the wheat foods,
White Sugar , and citrus fruits and their juices are omitted, so that at the end of the day he will return home with less mental and physical fatigue. "
continued here:
http://www.jcrows.com/iodine.html
and more info here:
http://www.jcrows.com/bacterialcontent.html
http://www.jcrows.com/alkalineappendix.html