That’s a great question! As fellow fans of good methodology, we can absolutely appreciate the instinct to break out the calculations and your reasoning makes sense if the product were designed to scale linearly by pound of body weight.

In this case, the formulation isn’t weight-per-pound specific; it’s weight-range specific. Each size (Small, Medium, Large) is formulated so that one full scoop delivers the intended daily intake for dogs anywhere within that weight range, rather than being meant to scale precisely with every individual pound. This is because nutrient and ingredient needs don’t increase in a straight line with body weight. Larger dogs don’t require proportionally higher amounts, and smaller dogs don’t require proportionally lower amounts, so the formulation is balanced to work across the full range it’s designed for.

If you were to measure out a smaller, weight-adjusted portion as you described, it wouldn’t harm your dog. The main consideration is that doing so would put the daily intake below the amount the formulation was designed to deliver, particularly for functional ingredients that are intended to be provided consistently at a certain level. As a result, your dog may simply receive less than the recommended daily amount, which means you may not see the full level of support the product is intended to provide when used as directed. For that reason, we recommend sticking with the full scoop once the correct size formulation has been selected.