First, the 43-year-old coordinator for the International Vegetarian Union in Asia Pacific will take you through mountains of scientific data from reputable institutions that shows vegetarianism is good for your health.
Second, having spent half his life as a vegetarian, Susianto is the living proof that eating plants and not meat does wonders to your body and appearance.
Indeed, when The Jakarta Post met Susianto recently, his skin was healthy and bright, and he looked younger than his age.
The man, who just received a doctorate from the University of Indonesia for his research on Tempeh, has been a vegetarian for 23 years. He stopped eating meat while he was studying for a bachelor degree in Yogyakarta, majoring in Chemistry at the University of Gadjah Mada.
"I became vegetarian in my second year of college. At that time, I had carried out some analysis on food and discovered many toxic substances in meat," Susianto said.
Being a vegetarian can prolong your life, he went on.
"Look at what happens to the vegans of Hunza in Pakistan, who live on average more than 100 years, compared to Eskimos whose life expectancy is much shorter because they eat meat every day," Susianto explained.