Mayonnaise
Thanks to millennials, mayonnaise is another product that is becoming very unsuccessful in grocery stores. With its ingredients including oil, egg yolks, lemon juice, and vinegar, it’s not the flavoring option that health-conscious millennials desire to add while maintaining a diet that agrees with the now popular wellness lifestyle.

Mayonnaise has been declining in sales over the last couple of years. Instead of using this fattening condiment on their sandwiches, millennials have gone for the more organic option of avocado. In fact, avocado has become trendy. It’s one of the most popular ingredients and has recently been used in references way beyond the grocery store.