Here are some features you might consider including in your "Eat Protein" mobile app:

Protein Calculator: A feature that allows users to check their daily protein intake manually based on category, age height and weight

Database of Protein-Rich Foods: An extensive database of protein-rich foods, including meats, poultry, fish, dairy, plant-based sources, and supplements, along with their protein content per serving.

Meal Planner: A tool that helps users plan their meals to ensure they're getting enough protein throughout the day, with options to customize based on dietary preferences and goals.

Recipes and Meal Ideas: A collection of protein-packed recipes and meal ideas to inspire users and help them incorporate more protein into their diet in delicious ways.

Nutritional Analysis: Detailed nutritional breakdowns of meals and food items, highlighting not just protein content but also other essential nutrients.

Progress Tracking: Charts and graphs to visualize users' protein intake over time, helping them stay on track with their goals.

Reminders and Notifications: Reminders to log meals and track protein intake, as well as notifications for reaching daily protein goals or other milestones.

Community and Support: A community forum or social feature where users can share tips, recipes, and success stories, as well as support and motivate each other on their protein journey.

Integration with Wearable Devices: Integration with wearable fitness trackers or smart scales to sync protein intake data seamlessly.

Personalized Recommendations: AI-driven recommendations for protein-rich foods and products based on users' preferences, dietary restrictions, and goals.

Shopping List: A feature that allows users to create shopping lists based on their planned meals and recipes, with options to add protein-rich ingredients easily.

Designing a user-friendly interface and ensuring accurate nutritional information will be key to the success of your app. It's also important to consider factors like data privacy and security, especially when handling users' dietary and health information.