A new blue sweetener called Sea Sugar is making the rounds in wellness circles, marketed as a marine-based, zero-glucose, zero-calorie alternative to sugar and artificial sweeteners. The color is striking, the claims are bold, and the price is $79 for 2.47 ounces. But when you look at the ingredient list, specifically trehalose, which the human gut converts directly into glucose, the zero-glucose claim does not hold up to scrutiny. This blog breaks down every ingredient in Sea Sugar, what the science actually says about each one, and how it compares to allulose and monk fruit as a daily sweetener choice.