Dr. Antti Heikkilä is from Finland and practices in Germany. He has over 20 years of experience in low-carb lchf keto nutrition and has been treating patients using that dietary approach. He prefers to call himself Finland´s leading dissident in Medicine and Nutrition.
His Website: http://www.anttiheikkila.com/
His Twitter Handle: https://twitter.com/AnttiHeikkil2
Books: https://www.amazon.in/Nutrition-Therapy-Diabetes-Antti-Heikkila/dp/1627844791