"Design an ultra-minimalist, black-and-white logo for a nutrition and dietetics clinic. The initials A, D, and S should be formed from smooth, rounded lines that are thin, sleek, and elongated. The design should focus on clean, flowing curves, with the lines being delicate and sophisticated. Avoid using specific fruit shapes, keeping the focus on the elegance and simplicity of the letters. The monochrome color scheme should enhance the modern, refined look, with an emphasis on health and wellness."