Why puppy treats need to differ from adult dog treats
Puppies are smaller, growing rapidly, and often teething, which changes what's appropriate on several fronts at once. Their calorie needs relative to body weight are higher than an adult dog's, but their stomachs are also smaller and more sensitive, so rich or unfamiliar treats are more likely to cause an upset stomach. Texture matters too, a puppy losing baby teeth around three to six months old can find hard chews genuinely uncomfortable, or in some cases risk dental injury to teeth that are already loosening naturally.
Soft training treats in small pieces suit a puppy training session
Soft training treats that can be broken into tiny pieces work well for puppies, both because their mouths are small and because puppy training sessions typically involve a high number of repetitions in a short window, house training, basic cues, and socialisation all rely on frequent, fast rewards. Pea-sized or smaller pieces let a puppy eat quickly and refocus, and breaking a single treat into several pieces stretches a reward-heavy session without piling on unnecessary calories.
Avoid very hard chews while your puppy is teething and losing baby teeth
Very hard chews, some antlers, hooves, or dense synthetic bones, are generally better saved until a puppy has their full adult teeth, usually somewhere around six to seven months old, because the pressure needed to work them down is more likely to damage teeth that are still developing or loosely rooted. Softer, more flexible chew options are usually a better match for a teething puppy, alongside appropriately puppy-safe chew toys that give some resistance without the same fracture risk.
Choosing puppy-safe treats and introducing new ingredients slowly
Some treats marketed for adult dogs use ingredients or preservatives that aren't necessarily wrong for puppies but haven't been specifically formulated with their needs in mind, checking that a treat is labelled suitable for puppies, or asking your vet, is a reasonable habit to build early. New treats should generally be introduced one at a time and in small amounts so you can spot a food sensitivity or upset stomach before it becomes a bigger issue, rather than trying several new products in the same week.
Keep puppy training treats within the daily calorie needs
Because puppy training often involves so many repetitions, it's easy for treat calories to add up faster than with an adult dog on a lighter training schedule. The same general guidance of keeping treats to a modest share of daily calories still applies, with the puppy's regular growth-formula food making up the bulk of their diet. If you're doing an especially treat-heavy training day, it's reasonable to slightly reduce that day's meal portion to keep things balanced, and if you're ever unsure how much is appropriate for your puppy's breed, size, or growth stage, your vet is the best source for a specific number.