DOI_ngFITneSS
This debate drives me crazy online because everyone has an opinion and nobody shares actual data. So I decided to just… do both and see what happened. I spent 6 weeks doing primarily walking, then 6 weeks doing primarily running, while keeping my diet roughly the same.
Here’s what my spreadsheet says.
The Experiment
Quick context: I’m 29, female, 5’6″, started at 158 lbs. Not trying to run a marathon or anything — just wanted to drop some weight and figure out which type of cardio was actually worth my time.
Phase 1 (Weeks 1-6): Walking 45-60 minutes, 5 days a week. Brisk pace, not a stroll. Usually around my neighborhood or on the treadmill when the weather sucked.
Phase 2 (Weeks 7-12): Running 25-30 minutes, 5 days a week. Easy conversational pace — nothing intense.
Diet stayed the same both phases. I didn’t count calories obsessively but I ate more or less the same meals both periods. No alcohol for the full 12 weeks (this was probably the hardest part honestly).
The Results
| Walking Phase | Running Phase | |
| Weight lost | 4.5 lbs | 5 lbs |
| Time per session | 45-60 min | 25-30 min |
| Hunger levels | Normal | Noticeably higher |
| Soreness/injury | Zero | Shin splints week 2 |
| Enjoyment | 8/10 | 5/10 |
| Skipped sessions | 2 | 6 |
Yeah. Read that again. The weight loss difference was half a pound over six weeks. Half a pound.
What Actually Mattered
The numbers are close enough that the real difference came down to everything else:
Consistency: I skipped way fewer walking sessions. It just felt easier to talk myself into. “Just go for a walk” hits different than “time to go run.” I could walk when I was tired, stressed, or not feeling great. Running required a certain energy level I didn’t always have.
Hunger: Running made me ravenous. Like, eat-everything-in-sight hungry. Walking didn’t really affect my appetite. This is a huge factor nobody mentions — if you burn 400 calories running but then eat 500 extra because you’re starving, you’ve gone backwards.
Sustainability: I’m still walking daily 4 months later. I stopped running after the experiment ended. That tells you everything.
My take: Running burns more calories per minute. But walking burns almost as much per session (since you do it longer), doesn’t spike your appetite, and you’ll actually stick with it. For weight loss specifically, the best cardio is the one you won’t quit.
Who Should Run Instead?
If you’re short on time and can genuinely commit to running 4-5x a week, it IS more efficient. If you enjoy it, even better. I’m also not talking about competitive runners or people training for races — that’s a totally different conversation.
But if you’re like me and just want to lose some weight and feel better? Walk. Seriously. Put on a podcast and walk. It’s underrated and it works.
