A respected figure in the food industry, John Blazevich focuses on promoting healthier eating habits. Throughout his career, John Blazevich has emphasized the importance of understanding the impact of food additives on health, particularly through his work on highlighting the dangers of what he refers to as "The Dirty Dozen,” which he wrote about in the article The “Dirty Dozen” Food Additives and/or Ingredients to Avoid. This article is a guide for parents (and their children) to help them choose the healthiest foods possible.

In his professional journey, John Blazevich served as the founder of Viva! Food Group. In this capacity, he was involved in initiatives aimed at reducing the environmental impact of food production facilities, such as building the world's first LEED-certified frozen-food manufacturing plant. Within a year of operation, this manufacturing plant achieved carbon neutral status.

In addition to his professional achievements, John Blazevich has contributed to various environmental and community-focused initiatives, including the recovery of the Kemp’s Ridley Sea Turtle population in the Gulf of Mexico and the construction of homes with Habitat for Humanity in Los Angeles, the President Jimmy Carter project.