He’s totally food and approval motivated. At six months old, he weighed 17 pounds. He learns quickly. What is the preferred training treat for his delicate digestive system?

It's great that Mookie is so food and treat motivated — that makes training a Belgian Malinois a real joy, since they're incredibly fast learners and thrive with positive reinforcement!

That said, I'm not able to recommend a specific treat or brand, since what works best for any individual dog's digestive system really depends on factors your vet knows best — things like Mookie's full health history, any sensitivities he may have shown, and his current weight and activity level. (At 1 year old and coming from 17 lbs at 6 months, he's likely still filling out, and a Malinois at his age is burning a lot of energy!)

Here's some general information about training treats that tends to be helpful for dogs with sensitive stomachs:

• Short ingredient lists — Fewer ingredients generally means fewer chances for a reaction. Single-protein treats (just chicken, just beef, etc.) are often easier to evaluate if a sensitivity pops up.
• Small size — Training treats should be tiny, ideally pea-sized or smaller. You may go through dozens in a session, and calories add up fast.
• Low fat — High-fat treats are a common trigger for digestive upset in dogs.
• Soft texture — Soft treats tend to be quicker to eat, which keeps training momentum going.
• Plain cooked proteins — Many trainers use small pieces of plain cooked chicken, turkey, or lean beef. These are often gentle on the stomach and highly motivating.
• Introduce new treats slowly — Even a "gentle" treat can cause loose stools if introduced all at once. Try a small amount for a few days before using it heavily in training.

Since Mookie is approval-motivated too, don't underestimate the power of mixing in praise, play, and petting alongside food rewards — that can actually reduce how many treats you need per session.

For a breed as driven and high-energy as a Malinois, working with a trainer experienced with the breed can also be a huge asset, especially in this first year.

When to see your vet: If Mookie is having recurring loose stools, vomiting, gas, or seems uncomfortable after eating treats, that's worth a conversation with your vet — they can help identify whether there's a true sensitivity and point you toward the best options for his specific digestive system. A routine wellness visit is also a great time to ask for treat recommendations tailored to him.