Can I hide the calories of the foods in a patient's meal plan?

Yes. In the meal plan summary, to the left of the “Download PDF” and “Send by email” buttons, you’ll notice “Show calories”, with “Yes” and “No” next to it:

Select “No” if you don’t want the patient to see the calories in their meal plan. The option shown in blue is the one selected. In the image above, the selected option is “No”.