Can the Ninja Fit Blender effectively blend frozen fruits and ice for smoothies, and if so, what is the maximum amount of frozen ingredients it can handle without overloading the motor?

Absolutely, the Ninja Fit Blender can handle frozen fruits and ice effectively. We've tested it extensively, and it consistently produces smooth and chunk-free results with tough ingredients like frozen berries and ice. You can check our review for more insights on this capability of the blender. As for the maximum amount of frozen ingredients, it’s best to not overfill the blender cup. The Ninja Fit comes with 16-ounce cups, and it's recommended to fill them no more than two-thirds with frozen ingredients. For optimal performance, adding some liquid to the mix can also help facilitate blending and prevent motor strain​.