Doctor Delio Esteve is chairman of the Association Naturista Argentina that poses as an organization who groups vegetarian people. Doctor Delio Esteve was bred along with his brother Lirio as a strict vegan by his father the naturopathic doctor Juan Esteve Dullin. Doctor Juan Esteve Dullin is the founder of the association and wrote several books that still are sold and promoted by this one. In the books of this naturopathic doctor we found out that it was not born vegetarian but he converted to this doctrine for health reasons. In its peculiar way of life he is in favor that healthy human feeding must be strictly vegetarian without taking neither eggs nor milk. The feeding must be natural and therefore the supplementation with minerals and vitamins is not allowed as it is in our modern times. The fasting diet completes his doctrinaire baggage. Doctor Juan Esteve Dullin explains that the best therapy of all is the long lasting fast, taking only water, of approximately forty days of duration. If anybody is not cured with the fast and the vegetarian diet is not going to be healed with nothing. As by accident I had tried a fast of about twelve days of duration having obtained a lot of benefits, I went to get some advise on the subject from Doctor Delio Esteve. To my surprise, this doctor, son of his father, who posed as vegetarian and had been bred as vegan, nowadays recommended his patients to take milk to obtain a suitable dose of calcium that, apparently, strict vegetarian diet cannot provide. Of course, he still was against the artificial supplementation of foods with vitamins and minerals bought in pharmacies. He said that if a person did not cure itself with the vegetarian diet and taking milk he is not going to be healed with anything. To my amazement he repudiated any form of fasting diet to which he called "that". Do not do "that", he said to me. I had precisely arrived to this place just by the benefits I had obtained doing "that". So I could not try megadoses of vitamins and minerals nor practice long term fast to heal myself. We remained without words and staring each other for a while till I left without ceremony.