Originally posted by: torpid
Originally posted by: moshquerade
I'd like to see a study that disproves that mastication of hard/crunchy foods versus soft foods shows no difference in the build up of oral plaque in any species. It certainly benefits humans to chew hard foods versus soft.
I'd also like to see your reference for hard foods leading to significant long term health risks in pets versus soft foods. For one, I have seen more fat pets who are fed soft/moist foods compared to those on a crunchy food diet.
There are a few studies. Just google around. And LOTS of articles posted by vets. One study showed that cats only actually chew a small % of their food if it's kibble, and even then only using certain teeth. And kibble itself is not coarse enough to be scraping off tartar.
Other studies are more anecdotal. Cats who come in every year who eat dry still need their teeth cleaned just as often as cats who don't. Dry food is nowhere near as effective as even the simplest daily dental stuff like dental chews. Dental chews are nowhere near as effective as dental rinses. And dental rinses are nowhere near as effective as tooth brushing. Which itself is way less effective than yearly cleanings.
If you actually believe any human would be ok just eating pretzels, never brushing their teeth, and never going to the dentist, you are clearly delusional.
As for long-term health problems, I guess you've been living in a cave for the past 10 years, because there are articles all over the place about it. I know cats.about.com and thelittlebigcat.com have articles written by vets about that subject.
Perhaps you are basing your theories on dogs, who are significantly different than cats. Cats naturally eat almost entirely protein in the wild. Dry cat food has something like 40% protein AT BEST, and often as much or more carbohydrates. Most cats do not drink sufficient water to equate to their natural water intake they would get from eating wet food / prey, which further causes health problems.