This is a perfect example of the warm fuzzies and "YOU feed your and I will feed mine".
I feed the dogs they way that works for me, and what I think is working for them. Is it the absolute best plan out there? I doubt it. But it works for me.
The 18 year old and potato chips is a pretty good analogy but people who eat healthy and exercise and best use the medical advice available to them kick off early too. It is an odds game. Put things is your favor the best you can and then after that, "It is what it is".
Anyone here who has had dogs for any length of time have seen the next guy put half the effort with half the knowledge and have dogs live much longer still producing.
EWO