A calorie is a calorie
"A calorie is a calorie" is an expression used to convey the concept that sources of dietary energy are interchangeable. This concept has been subject of debate since its emergence in the early 19th century.
"A calorie is a calorie" is an expression used to convey the concept that sources of dietary energy are interchangeable. This concept has been subject of debate since its emergence in the early 19th century.