I'm sure this has been asked a thousand times before but anyway...

I going to put my Labs on this, as a preventative, what sort of dosage should they be on, and can you recommend a product  (ideally not from the vets).

They weigh 28-30kg and are 5 and 6 years old.  They have no problems at all with lameness at the moment, although my boy does have clicky joints sometimes.

Thanks
C
 

you could use this where the dose is given for size of dog.http://www.chemistdirect.co.uk/stride-powder---with-glucosamine-and-chondroitin_1_21150.html

I give my two oldest dogs a product called Glucosamine/Chondroiting/MSM Complex from Hollan and Barrat. It is a liquid for humans, £10 a bottle (but often available half price), and it lasts our 60kg pyrenees and 20kg lurcher a good month. I have noted quite a difference in both dogs, but particularly in my lurcher who seems a lot more active again now.

Liquid would be a good idea as they tend to eat around any tablets I've tried in the past.  I know I should crush them really but it's a fiddle.

Do they mind the taste?

our dogue(who is way heavier than your labs) is on dorwest glucosamine & chondroitin and he seems to be fine on 2 tablets a day crushed in his food,and stays limp free.hope this helps,roy.

clio1, no, they don't mind the taste. It tastes very nice (being made for humans) of fruit juice.