Logistically, grain-free pet food means that the pet food has taken traditional ingredients, like wheat and corn, and replace them with something like legumes or potatoes.
But some animal health experts question this way of thinking. They say established pet food companies, like Royal Canin, have researched their food for many years.
But despite their size, Mars and Nestle are being increasingly challenged by nimbler, innovative companies that are making use of digital channels to sell their pet food.
Two women, both white, are in the top twenty: Alice Walton, an owner of the Wal-Mart company and Jacqueline Mars, whose riches come mainly from the candy and pet food industries.
A pet food industry association says nearly 22 million dogs and cats are kept as pets in France. But according to animal welfare groups, 100,000 are abandoned every year.
" In fact, " he continues, " there were many other things there made in China — footballs, handbags, pet food, mobile phones. Even American flags are made in China! "
Um, it would put us in competition with the aviation industry and when it comes to sort of the purse strings of the aviation sector, the pet food industry would find it really difficult to compete.