Whatever you can do during a cut that keeps your sanity is probably fair game. You are cutting for your own asthetics I take it, not a contest. So, no reason to be so anal you lose it. If a periodic diet soda does the trick then use it. I use sugar free jello alot.
I've gotten to the point where I drink only water. I don't think Ive had a soda or lemonade or flavored water in the past 6 months, my vice, alcohol. At least once a week I end up getting pretty hammered with friends
I can drink up to 10 L of water a day & ice cold DP hits the spot sometimes ...
Just stocked up on all the No sugar CL yesterday The Sunrise tastes like Tang to me
There is tons of research & studies why it's not good for you, posts about it too ... ("soda/pop") but only think I really avoid when cutting is ANPB i.e. Crack