I'm a new owner of an English Mastiff. I've always owned and raised Rotties but, I fell in love with this breed. However, I'm not overly knowledgeable of what I should have expected selecting a puppy on regards to size. The puppy and environment were clean. Parents good temper and Dad 220 lbs and Mom 185 lbs. Puppy's coat soft, teeth, ears eyes all looked healthy. The puppy and his other 2 litter mates all playful. He was 14 1/2 weeks and looked thin but not sickly and I assumed that he was going through his odd ball growth spurt of being tall, huge feet and thus a little thin and lanky. As he'was chunky from the posted pictures and videos 2 weeks prior. I assumed he was normal weight and the owners said he was normal size. I took him to his 1st vet visit today and he was only 29 lbs. He visibly was a little taller in just a week. The vet said he measuresd and his teeth were more in line of 14 weeks and he would be 16 weeks today per the owner and AKC registration. He was healthy and looked fine to the vet no visible health concerns. I researched after the visit and saw the puppy growth chart for English Mastiffs and my pup is almost half the average weight of males. Should I be concerned? I will love him regardless but, wonder if he will even be close to the average weight of his breed. I have no intent to breed or show. I guess I was expecting my puppy to be close to 200 lbs judging by parents. Is there any hope of That? He eats 3 times a day. High calorie all meat kibble Taste of the Wild. He isn't an aggressive eater and never finishes his bowl of 1 1/2 cups of food. I thought about adding gravy, high quality can food or mix with raw. Of all the research I did on this beautiful breed I never once thought to look at the growth chart. He was not the runt of the litter and of the 3 left he was the medium sized one.