Set them on fire and measure the heat they produce. Seriously. That's how it's done.
because they give you energy
drawing of energy giving foods
Nutrients that are known energy foods are bananas...
How Much energy should we from starchy foods
The Biuret test allows one to test for proteins.
Urine Test
it gives you more energy than other foods
go foods --> are foods that gives us energy
Beans are go foods- energy foods.
need a list of foods not to eat when you have a drug test
Sudan III test
it gives you more energy than other foods