Do I need to completely change my dining-out menu while I'm on Maunza?

I often eat lunch together at work, so it is not easy to prepare a separate diet on my own.

I can't eat only salads every time, but I also don't think I should eat like I used to, so I'm wondering about a realistic approach.

Is it okay to manage my usage by simply adjusting the portion sizes or choices when dining out while using Maunza?