move spaces to a given column via worksheet command

i am 81 yoa and my lady is sickly.  Among other things she has type 1 diabetes and heart problems.

I am building a worksheet containing foods and their calories and carbs.

i want to blank out input a column when she has completed her food menu and is done inputting. How can I do that?

I also want to protect all columns in the worksheet except the one for her input.

I am using Microsoft Professional + 2013 Office on a pc via wireless in Windows 11.

can anyone help me? I would be happy to attach a copy of the worksheet but i don't see how!

Thanks in advance!