Back to today’s briefing

Story perspectives

12-3-30 Treadmill Trend: Fat-Burning Workout Gains Fame

8/14/2025

25 2

Summary

Story summary

The 12-3-30 treadmill workout, popularized by Lauren Giraldo, is gaining popularity on TikTok for fat-burning claims.
A study found that while running burns calories faster, the 12-3-30 method utilizes more fat as fuel.
Experts emphasize that consistency in exercise is crucial, regardless of the chosen workout method.

1 of 1

Story summary

The 12-3-30 treadmill workout, popularized by Lauren Giraldo, is gaining popularity on TikTok for fat-burning claims.
A study found that while running burns calories faster, the 12-3-30 method utilizes more fat as fuel.
Experts emphasize that consistency in exercise is crucial, regardless of the chosen workout method.