Enquiring Mastiff Minds - How many times have you been asked..."How much does your dog eat? Can you saddle him and ride them? or "How much does he weigh?" One of our Great Pyr/Leo crosses is 170# and I have been known to tell people she eats less than my 12# Brussels Griffon due to metabolic differences. Try it, hopefully, you'll keep a better straight face than I do.
Back to YOUR Mastiff's care. One of the biggest of the dog breeds, Mastiffs can also have BIG problems with Mastiff dry nose issues, rough paw pads problems, and those maddening canine elbow calluses. And of course, bug bites!
Elbow calluses are a BIG problem for Mastiff owners. Elbow Butter moisturizes and conditions those frustrating elbow calluses. Extensive info on canine elbow calluses here.