When will I see muscle or weight changes?

Muscle gain is the slowest-acting of our three formulas — because building muscle is itself a slow biological process. Here’s the realistic timeline.

Week 1–2 — Energy and appetite

The first thing pet parents typically notice:

• Better appetite — dogs that were “ribby” because they ate inconsistently often start eating more enthusiastically.
• More energy on walks — visible in the second half of the walk, where tired dogs would normally slow down.
• No visible body change yet — the supplement is being absorbed and used, but muscle synthesis takes time.

Week 4–6 — Body condition shift

By week 4, most dogs show a measurable change in body condition score:

• Filling out the topline (the line along the back/spine).
• More defined hindquarters — the back legs look stronger and rounder.
• Less visible ribs for dogs that were underweight.

This is when most pet parents can photograph the difference if they took a “before” photo at week 1.

Week 8–12 — Visible muscle

Real, visible muscle development shows up by week 8–12 for most dogs. This is gradual — there’s no “before/after” moment, just incremental change month-over-month.

For senior dogs losing muscle to age, the goal is slower decline (sometimes a small recovery), not bodybuilder transformation. A senior dog that holds steady at week 12 instead of continuing to lose muscle is a win.

What slows results

• No exercise. Muscle synthesis requires use. A dog getting the chews but never walking won’t gain muscle.
• Inadequate caloric intake. The chews provide protein for muscle building, but the dog needs enough total calories. If your dog is underweight despite eating well, talk to your vet — there may be an underlying absorption issue.
• Missed daily doses. Inconsistent intake means inconsistent amino-acid availability.

What about weight on the scale?

Scale weight can go up, down, or stay the same as body composition improves. Muscle is denser than fat, so a dog that loses fat and gains muscle may weigh the same on the scale while looking visibly stronger. Track body condition (visual + feel) rather than scale weight alone.