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.
I don't see Reset to Target Cals
If your meal plan is scheduled for specific days or only on a selected date, the Reset to Target Cals option won't be available.
To remove the meal plan:
Open your active meal plan.
Tap Update Schedule.
Change the schedule to Repeat every day and save your changes.
Return to Explore → Nutrition.
Tap Reset to Target Cals.
This will remove the active meal plan and return your Nutrition section to your regular calorie and macro targets.