Research says only one in ten of the treats used to countdown to Christmas day will feature the true meaning of the season.
A huge 89% of calendars will instead feature TV shows, high street bands, pop stars and films.
The study by online home handyman provider Fantastic Services found 38% of people bought their own Advent calendar while 42% got one from their parents.
In November a maker of Christian advent calendars challenged the big UK supermarkets to sell more Advent calendars that are centred around Christmas.
The Meaningful Chocolate company estimates that there are more than one million advent calendars designed with animals on the front for pet lovers, with no reference to Christmas.
It believes the number of advent calendars based on the Christmas story is around 400,000.
David Marshall, the company's founder, told Premier: "Dog lovers are fine as a group of people who love their dogs. I'm a dog lover myself. But Christians really care about children.
"Supermarkets should offer a quality product that reflects some of the meaning of the season, and that will sell.
"There is one UK supermarket that I won't mention that is quite happy to offer pet owners an advent calendar that caters for them but will not offer Christians an Advent calendar that connects with Christmas. That is a real shame."
Meanwhile Premier has created an advent calendar delivering a new video everyday.