Who figures it out? How do they know how many calories are in there? Like when it’s printed on a restaurant menu- does a restaurant just guess? And doesn’t that depend on exact measurements? Which we know can’t be exactly the same every time a person cooks a dish?
In: Chemistry
I actually know a woman whose career was a food scientist. Her entire job was verifying what was on food labels. They would break things down chemically. For example, if your bottle of ranch says it has 12 grams of fat in a serving, they would break it down to verify it had 12 grams. Of course, there is some wiggle room. For example, something can be marketed as “fat free” if it has less than half a gram of fat per serving (assuming the regulations haven’t changed recently). As far as calories 1 gr fat has 8 calories, carbs and proteins it’s 4 so it becomes a mathematical equation.
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