There is no magic bean product out there to replace a well conditioned dog.

I have found that when relaying 2 dogs, I get an extra day of acceptable performance by supplementing.

I always used K-9 brand Hydration supplement, and the chewable bars for glucose enhancement.

I started out old school using Karo syrup, and advanced up from there. Hydration and inflammation relief are my two biggest concerns anymore. Not food intake.

Out there doing it best I can.