Burnie Academy
How Does a Food Label Get Its Calorie Number?

How Does a Food Label Get Its Calorie Number?

That calorie number on a food packet is not guessed. It comes from burning food in a lab, then fixing the number for what your body actually absorbs.

13 Jul 2026 · Burnie Academy
calorie-science food-labels atwater burnie-method

You pick up a packet of biscuits. The label says 480 kcal. But where did that number come from? Did someone guess it? No. Scientists measured it in a lab. Then they fixed it for what your body really absorbs. Let us follow the number step by step.

CONTINUE READING FOR FREE

Unlock the complete article

Register with just your mobile number and OTP. No password and no payment.

Use this same phone number in the Burnie mobile app. Your profile, liked articles and favourites will stay synced.

By continuing, you agree to Burnie's Terms and Privacy Policy.

Track your food the honest way

Burnie helps you see your estimated calorie deficit with familiar Indian foods — no fake precision, no guilt trips.

Get Burnie on the App Store

Sign in with the same mobile number you use for Academy. Android public availability is being expanded.