HELLO DID YOU KNOW IT IS ESTIMATED THAT MORE THAN 20% OF DOGS OVER THE AGE OF 1 YR OLD HAVE OSTEOARTHRITIS? LONG TERM USE OF ANTI-INFLAMMATORY DRUGS CAN CAUSE ULCERS AND BLEEDING. FAST GROWING DOGS, ESPECIALLY LARGE AND GIANT BREED DOGS, MAY BE MORE SUSCEPTIBLE TO BONE AND JOINT ISSUES BOTH AT AN EARLY AGE AND LATER IN LIFE. I HAVE FOUND ALOT OF PRODUCTS ON THE MARKET FOR K-9 NUTRITION, I DO SEE ALOT OF BONE AND JOINT PROBLEMS IN DOGS OF ALL AGES. SIT MEANS SIT HAS PARTNERED WITH A GREAT COMPANY THAT HAS VERY HIGH STANDARDS FOR THE FORMULATING OF THEIR PRODUCTS, AND ALOT OF RESEARCH GOES INTO IT. MOST OF ALL THOUGH I HAVE TRIED AND SEEN RESULTS THAT ARE POSITIVE IN MY OWN DOGS, AND THAT IS WHY I AM PASSING THIS INFORMATION ON TO YOU. STEADFAST CANINE SUPPLEMENTS DO HELP JOINT AND MUSCLE HEALTH. I HAVE STARTED MY GSD ON IT AFTER HER HIP SURGURY AND DID SEE A DIFFERENCE IN THE USE OF THAT LEG AND BEARING WEIGHT ON IT. ALSO MY 11 YR OLD POM MIX DOES LESS LIMPING. SO I AM VERY PLEASED WITH THE RESUSLTS AND BELIEVE THAT THIS PRODUCT WOULD BE GREAT TO START AT ANY AGE. BUT PREFFERABLY YOUNGER IS BETTER TO HELP WITH JOINT HEALTH WHILE GROWING.I HAVE INFORMATION ON THE SUPPLEMENTS AND YOU CAN E MAIL OR CALL 267-7864 TO ASK QUESTIONS OR ORDER. THANKS AND HAVE A GREAT DAY! KATHY B