If you want to stop using your current meal plan and return to tracking calories and macros manually, follow these steps:
Steps to remove a meal plan
Tap the Explore tab.
Select the Nutrition section.
Tap Reset to Target Cals.
This will clear your meal plan and return your food diary to your original macro and calorie targets.
Note: You can choose a new meal plan at any time. Just go back to the Nutrition section and select a new plan.