Please roast my startup idea - AI nutritionist

Here is my idea:
An AI nutrition assistant that helps people achieve fitness goals, with tools we provide users with such as:

1. Nutrition tips based on the user's body measurements and also fitness levels
2. Customized meal plan to help users achieve fitness goals
3. Recipes made based on the user's dietary requirements and preferences.
4. Potential feature with gpt4 release - A way for people to scan their fridge and get the most nutritious recipe with the ingredients they already have.

Please roast my startup idea so I can brainstorm new ways to improve the idea and product!

Also, you can play around with Enzo if you like! (enzoai.com)