Our newly launched Massive Open Online Course (MOOC) “Breastfeeding and Adequate Substitutes” invites you to navigate the world of infant nutrition during the first six months of life. Highly qualified specialists in the field will show you the latest research results and international recommendations through three study units. These will encompass the unique components and health benefits of human milk, the relevant practical aspects of breastfeeding and, finally, how best to provide adequate substitutes for breastmilk when these may be provided. Ensuring adequate nutrition is essential for infants to reach their full potential, whereas nutritional imbalances and deficiencies may result in detrimental and often irreversible adverse health consequences. This course is primarily intended for healthcare professionals who in their daily practice are in contact with infants and their parents. However, students of life sciences, educators, trainers, researchers and anyone else interested in the topic would also find it beneficial for them.