Proteins are the building blocks of the body that contains amino acid. One cell holds 42 million protein molecules according to the scientist.

We can find proteins in every cell in our body. We can also find it in our muscles, bone, skin, and hair.

Eating protein is a healthy diet. We get proteins in food like meats, poultry, seafood, and dairy products. Fewer proteins or protein deficiency in our body can cause swelling, fatty liver, skin degeneration, and increase infection.

Proteins can fuel our energy. It carries oxygen in our body through blood.

I hope you have learned from this answer.

Answer:

Protein.

Explanation:

Protein has a building blocks of nutrients, oxygen, and waste throughout

the body.

hope it helps :}