# data[].attributes.body
The first step of the rat experiment...

the first step of the rat experiment was to feed them something different, so the scientists conducting the experiment fed them 23mg of amino acids built into their daily diet. and the rats contained the same weight throughout the experiment.

# data[].attributes.attachment_link.description
Rats are less pestilent and more lovable than you might think. Can humans learn to live with them?

# data[].attributes.body
What did scientists believe happened to nitrogen before the experiment?

The scientists believed that the nitrogen came from two places. They first thought that most of the nitrogen came from the rat's urine and that it came from the proteins they ate. That would mean very little nitrogen would go to the rat's cells. The other scientists believed that the new proteins were used to help make new proteins for the body and that the proteins coming from the urine would be old proteins.

# data[].attributes.attachment_link.title
Nitrogen chemical element with first ionization energy, atomic mass and electronegativity values ,simple black icon with shadow Stock Vector

# data[].attributes.attachment_link.description
Download Nitrogen chemical element with first ionization energy, atomic mass and electronegativity values ,simple black icon with shadow Stock Vector and explore similar vectors at Adobe Stock.

# data[].attributes.headline
2        how much of the protein that is eaten, excreted, and how much becomes a part of protein in the body?

# data[].attributes.subject
2        how much of the protein that is eaten, excreted, and how much becomes a part of protein in the body?

# data[].attributes.body
The amount of protein that is excreted out depends on how much protein you eat if you were to eat 5g of protein you would excrete 40-50% of it and your body would keep 50-60% of it and use it to repair build and grow your body/cells.

# data[].attributes.body
We collected their urine and feces over three days and analyzed them for the isotopes

New proteins are proteins that are created in a lab with isotopes so they are classified as isotopes proteins and old proteins are proteins that we get from food that contain protein like meat, eggs, nuts, and fish.

# data[].attributes.body
What does 'Built up' mean?

The term 'Built up' means that your body is using food to repair your body, help your body grow, and help to replace old cells with new cells. For example, when the rats were fed, at the end, most of the food (57.5%) of the protein went to their bodies.

# data[].attributes.body
Most of the nitrogen found in rats are in their bodies. This makes sense because the organs with the least nitrogen isotope concentration are skin and muscles not part of the main body. The ones that have the most are blood plasma and kidney which are in the main body.