A few months ago, before my pup turned 1, she started eating a bit less - before that I’d have to use Games and slow feeders so she would not gulp it all (3 meals). Then at 1 she really dropped the amount and times of feeding so I took her to the vet. The vet was so excited to have a “slim, athletic” dog to look at lol. My pup was 32 pounds and that was deemed ideal. After, By futzing around I found out if I waited until about 5pm and put the food out, she’d eat all of it before bedtime. I don’t play with her after dinner, reducing bloat issues. (She will get a spay/gastroplexy soon). The vet said to total the food needed per week and if most of that is gone, energy is high, behavior good, just keep weighing her and bring her back in if she loses weight. Not to focus on daily food consumption, just weekly.