ARMY VET 3RD TIME AROUND

I'm a 46 yo male. Trying to live a healthy lifestyle once again. Long term this time!!! LOL. Wifey and I been pretty consistant this time around. We finally got a scale for food so that means we mean business. I've had this app for awhile now and recently started logging food in again for about 3 weeks.

How do I delete the old stuff I have on here that I logged in before? Alot of stuff I no longer eat since we've been researching nutrition amd eating clean.

Thanks
B.Mandac