Proper weight for a lab

Question
Hi, I came across your site through a google search, and thought I would give it a try.

My next door neighbor is the police chief, and he has a black lab, about 2 years old, that is a certified narcotic detection dog.   He is anal with his toy, and will play fetch forever, so he is running around/swimming a lot.  I was petting him today, and could feel his ribs quite a bit, as well as he looks skinny to me.  I am a little concerned with this.  I don't know if it is OK, because he is running around so much, or if something else is going on.  He seems to be very healthy, his coat is very thick and shiny, so, just to put my mind to rest, is this normal?   

Thank you,
Lisa  

Answer
Sounds good to me unless you can actually see them.  Normal, unfortunly  perhaps not.  Healthy, yes.  See http://www.longliveyourdog.com/twoplus/RateYourDog.aspx

There was an extensive discussion of weight in a recent newsletter from a service dog school.

''Obesity is the number one nutritional disease affecting dogs. It's estimated that 25-45% of dogs in the US are obese. Studies have shown that joint and locomotive problems increase by 57%, circulatory problems by 74%, respiratory problems by 52%, skin problems by 40% and cancer by 50% in animals that are overweight.

Large breed dogs that are overweight also are more prone to developing hip dysplasia. Obesity is especially dangerous for young puppies, as their underdeveloped frame cannot support the extra poundage that it must carry.''

Likely you are used to seeing overweight dogs.