What small diet tweak gave you the biggest energy boost?

I’ve been experimenting with small changes to my diet lately, and I’m curious what’s one simple swap or addition that made a noticeable difference in how you feel day to day? Could be anything from cutting out a certain food to adding something new. Looking for easy wins!

Switching to herbal tea instead of coffee in the afternoon helped me feel less jittery. Adding a handful of nuts for a snack keeps my energy steadier. Cutting out sugary drinks made me sleep better.