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You Can't Out-Train a Bad Diet — The Honest Math

You Can't Out-Train a Bad Diet — The Honest Math

One big dessert can equal three hours of brisk walking. The food side of your calorie deficit is the bigger lever, and Burnie shows you both numbers honestly.

13 Jul 2026 · Burnie Academy
myth-busting calorie-deficit exercise burnie-method

I can eat extra junk food today and just exercise more tomorrow to burn it off.

mostly false

mostly false — explained simply: one big dessert can equal three hours of walking, and exercise also makes you hungrier, so the 'extra burn' mostly cancels out. Fixing the food first works far better.

Sources: Thorogood et al., 2011 — Isolated aerobic exercise and weight loss (Am J Med, PMID 21787904) · Thomas et al., 2012 — Energy balance analysis (Obes Rev, PMID 22681398)
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