Sort of.
A GDA is a substance that purportedly improves the body’s ability to store glucose in muscle cells instead of fat cells.
Here’s the rub: “Glucose disposal agent” isn’t a scientific term. It was coined by marketers and supplement enthusiasts, and there’s no official definition of what is or isn’t a GDA.
What’s more, most of the substances that people claim are GDAs, really aren’t, and this also applies to berberine, which you can find in Balance.
Berberine improves your cells’ ability to absorb glucose, but it doesn’t preferentially cause glucose to be absorbed by muscle cells. Instead, it improves both fat and muscle cells’ ability to absorb glucose. This means your body doesn’t need to produce as much insulin, but it doesn’t mean that berberine will allow you to eat as many carbs as you want without gaining body fat (no supplement can do this).
(And in case you’re wondering, this doesn’t mean that Balance will make you gain body fat—only a calorie surplus can do that).
So, you could call Balance a GDA, but don’t expect it to help you lose fat or gain muscle to any significant degree.