In 2022 I met with a nutritionist to see why drinking coffee after 11 a.m. kept me up all night.

Turns out, I'm what you'd call a "slow caffeine metabolizer," meaning that a little goes a long way for me. Since then, I've been on the hunt for coffee alternatives that will put just as much pep in my step. I wanted to reduce my caffeine intake and find something that didn't make me jittery or leave me wide awake all night.

Somewhere along the line, I had the idea to swap out my morning cup of joe for a can of prebiotic soda every single day for a month. One such brand, Olipop, generously agreed to send me some samples, and after sticking to the experiment, I can happily report that I've found my new favorite morning beverage. Even better: my new protocol is nutritionist-approved.

Before starting my investigation, I chatted with Stephanie Crabtree, RD , owner of Holistic Health in Venice, Florida, who hypothesized that I would see improved digestion and curbed hunger. (Check.) When I talked to Dalina Soto, RD, LDN , an anti-diet dietitian based in Philadelphia, she had similar thoughts.

"The added fiber in your Olipop, combined with breakfast, will likely give your gut a little more nutrition. This could make you have a good poop, which might even make you happier," says Soto. (Also check.

) Keep reading for more of these professional insights about Olipop, exactly what happened when I had a prebiotic soda with breakfast for 30 days straight, and what to know before trying this f.