Develop a mobile personal nutritionist app in C# that utilizes a database of food items and their corresponding nutrient levels to generate personalized meal plans and track user's nutrient intake. The app should allow users to input their health goals, dietary restrictions, and food preferences, as well as provide voice-activated commands for hands-free operation. The app should also include a feature for setting reminders for meal times and hydration, as well as tracking water intake. The user interface should be clean, modern and easy to navigate. Additionally, the app should provide progress tracking and customized recommendations based on user's data.
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